Energy Division

http://energy.tycoelectronics.com

Modis 25 LV Modular Distribution System

Modis 25 LV Modular Distribution System

The Modis family of self-assembly switchboard systems comprehensively covers all LV switchboard requirements up to 2500A (1.8MVA). This range of Type Tested Assemblies is more than capable of satisfying individual customer needs for the control of power in any commercial or industrial application. When fitted with Loadswitch, Loadline or Loadlimiter XS components Modis 25 ensures that Dorman Smith Switchgear offers a complete system solution. Modis 25 fully complies with EN 60439-1 and can be assembled in a variety of options from a simple Form 1 switchboard through to complex Form 4b Type 6 installations. Designed with product performance, cost effectiveness and user choice in mind Modis 25 has a wide variety of busbar arrangements capable of carrying many current ratings for a broad range of breaking capacities and withstand times. Innovative features can be found throughout Modis, from divisible frames that reduce the number of actual sections required to comprise a switchboard through to a highly versatile, patented busbar support system. The benefits of such features provide advantages in the simplicity of build and installation.

Features
Fully Type Tested options in accordance with EN 60439-1 ASTA Certified Form 1 to Form 4b Type 6 Horizontal busbars up to 2500A Wide range of busbar fault rating options Fully extendable at either end Front or rear access with cable entries top or bottom to suit application Compact modular design ACB, MCCB, Fuse Combination Switch and MCB options

Contents
Technical Specification General Information Internal Components Dorman Smith Internal Components Crompton Instruments Internal Components Bowthorpe TVSS Forms of Separation Ingress Protection Type Testing Dimensional Guide Company Profile

Page No. 2-3 4-5 6 7 8 9-11 12 13 14-15 16

Benefits
Improved stacking densities Complete range of devices ensures Loadframe is suitable for any L.V. application Cost Effective

Applications
L.V. Power Distribution Industrial environments Commercial environments Public Buildings

Approvals
BS EN60439-1 EN 60439-1 IEC 60439-1 ISO 9001 EN 60529 IEC 60529

Modis 25 Technical Specification

Product:

Modis 25

Name of Supplier:

Tyco Electronics/Dorman Smith Switchgear Blackpool Road Preston PR2 2DQ UK

Quality Certificate of Manufacturer:

ISO9001

Country of Origin:

England

Type of Product:

L.V. Switchboard (TTA)

Standards:

BS EN 60439-1 : 1999 EN 60439-1 : 1999 IEC 60439-1 : 1999

Form of Separation:

Compliance to EN 60439-1 : 1991 Forms 1, 2, 3 & 4 as appropriate to specific project. National Annex accommodated

Designation:

Type Tested Assembly

IP Rating: External

IP3X as standard to IEC 529 : 1989 and IEC 60529 : 1989

IP Rating: Internal

IP2X minimum to above named standards

Construction: Frame Structure

2mm gauge folded steel

Construction: Cover Plates

1.6mm screen fixed sheet steel

Construction: Internal Segregation

Aluzinc perforated sheet steel or transparent polycarbonate sheet

Cabling Access:

Suitable for front or rear access cabling. Entry via gland plates that facilitate either top and/or bottom entry

Terminal Identification and Marking:

By assembler

Busbars: Material

HDHC Copper. Multiple laminations per phase

Busbars: Mounting

4-pole air insulated mounted in glass fibre reinforced moulded supports

Modis 25 Technical Specification

Busbars: Shielding

Non-conductive rigid insulated barriers or rigid sheet steel barriers 1250 2500A: 2500A: 50kA for 3s (Optional 50kA for 1s) 80kA for 1s

Busbars: Maximum Current and Fault Withstand Ratings

Switchboard Certification Bodies Type Testing Independent Certification: Temperature Rise Dielectric Properties Short Circuit withstand Strength Effectiveness of Protective Circuit Clearance and Creepage Distances Mechanical Operation Degree of Protection Earthing: ASTA ASTA ASTA ASTA ASTA ASTA ASTA ASTA Earth bar sized at 300mm2 for 50kA for 1s fault level and 500mm2 for 50kA for 3s and 80kA for 1s fault levels. Earth continuity of cladding is maintained by fixing screws specifically designed for this purpose 415V 690V 2500V Project specific Compliance with appropriate EN/IEC standards for the design and manufacture of Modis 25 and its complementary products means we are not required to comply with EN 50081 and EN 50082 as the individual standards make reference to comply with EMC emissions requirements Assemblers Standard Colour light grey RAL 7035 semi gloss 40/60 Microns 4-stage process of chemical spray degreasing, iron phosphate coating, automatic electro-static epoxy polyester film application and curing in a high temperature controlled oven

Rated Operational Voltage: Rated Insulation Voltage: Power Frequency Withstand Voltage: Rated Operational Current Ie: EMC Emissions

Labels: Paint Finish: Paint Depth: Paint Process:

Modis 25 General Information

What is Modis?
The concept for Modis was to develop a complete system solution for the OEM customer. In addition to products we can also provide the customer with all necessary support aids to take the product to market. The product offering comprises of; Protection Devices Circuit Breakers and Fuse Switches Busbar Systems Cubicle sections - Pre-formed identified solid copper interconnections (to maintain integrity of Type Tests) Distribution / Control Equipment Instrumentation (via Crompton Instruments) Surge Arrestors (via Bowthorpe TVSS) Detail of Modis 25 Utilising Loadswitch Devices All component parts will be supplied in recyclable packaging and packed with user convenience in mind. Each delivery would be logically arranged so that the first components required for the assembly would be located in the top collar section and so forth. This improves assembly times and negates the need for the assembler to unpack everything prior to commencement of assembly. The support packages include; Estimating Software (ModisCAD) Comprehensive Assembly Instructions Discrimination Software Full Literature and Marketing Standard Package O&M Manuals Full Type Test Certification to EN 60439-1

Scope of Use
The versatility of Modis 25 ensures that the products can be used as the ideal solution for the following applications; Main Switchboards Sub-Main Switchboards Package Substations Changeover Systems PLC Controlled Intelligent Switchboards Motor Control Centres

Fault Rated Busbars

Available technologies can, when selected, permit communication between the switchboard and building / energy management systems.

Life Expectancy
The life expectancy of a Switchboard is inherently dependant on the frequency of use of the devices installed within it. Frequent use is usually defined as less than 5 times a day for a small device (i.e. up to 100A) and once a week for a larger device. Therefore, for example, a 200A fuse switch being switched once a day would have a life expectancy of at least 22 years. The switchboard and devices installed in it require no maintenance other than the actions recommended below. Unclad End View

Modis 25 General Information

Storage and Transportation
We would not anticipate any degradation of components in the event of the switchboards being transported or placed into storage prior to installation providing that the storage area was reasonably dust and damp free and maintained, as stated in EN60439-1: 1999 Section 6.3.1 at a temperature between -25C and +55C. The average temperature over short periods should not exceed 24 hours up to +70C. In the event of this being the case we would recommend that the switchboard sections are wrapped in high-grade PVC sheaths (which would be supplied by ourselves) and protected against any further accidental damage by rigid barriers i.e. wood casings. In addition to the above it would be preferable if the anti-condensation heaters (if fitted) were powered up and thermostatically set if the period of storage was to be prolonged. This would ensure that the switchboards are stored in an environment very similar to operating conditions As an alternative to anti-condensation heaters fitted within the switchboards the provision of a thermostatically controlled wall heater located within the storage area would assist with the temperature regulation within the switchboards. In the event of any switchboard being designated for prolonged storage containing lead acid batteries we would advise that all necessary precautionary measures in line with the battery manufacturer's recommendations are taken.

Interconnecting Sections Step 1

Component Storage
Dorman Smith would not anticipate any degradation of any components in the event of the them being placed into storage prior to assembly, providing that the storage area was maintained as described in the above paragraph relating to switchboard storage.

Installation
A major benefit of the Modis 25 design is its physical strength. A typical section is capable of carrying over 1200kg without distortion. The practical benefit of this is that, when assembled, it can be shipped to site in multiple sections, where site conditions permit, to reduce installation times.

Positioning
Interconnecting Sections Step 2 When positioning the assembled switchboards into their final position we recommend that the floor level should have a tolerance of +/- 2mm per metre.

Operating Temperatures
In accordance with EN60439-1:1999 Section 6.1.1.1 the maximum ambient operating temperature should not exceed +40C or the minimum ambient be less than a lower limit of -5C at any point in time. The average temperature over a 24 hour period should not exceed +35C

Atmospheric Conditions
Section 6.1.2.1 of EN60439-1:1999 states that for indoor installations the air should be clean and have relative humidity not exceeding 50% at a maximum temperature of +40C. Higher relative humidities may be permitted at lower temperatures, for example 90% at +20C. Care should always be taken to moderate condensation which may occasionally occur due to variations in temperature.

Routine Maintenance
Interconnecting Sections Step 3 We would recommend that all switchboards are periodically inspected for the tightness of all current carrying connections (i.e busbar links). Additionally, the switchboard cover plates can be cleaned with a light solvent such as is typically found in ordinary detergents. This action would reduce the long term build up of dust and dirt surrounding the unit. Specific information relating to the maintenance of our switchboards is contained within the main O&M manual that is supplied post order. Routine maintenance recommendations for individual component parts will be as detailed in the relevant documentation relating to the particular product.

Seminars
EN60439-1 can seem a complicated standard to understand as it covers a wide range of topics that relate to switchboard design. To assist in understanding specific topics Dorman Smith offers a wide range of free technical seminars and training which cover all aspects of the standard from Type Testing through to an explanation of the Forms of Separation. If you wish to arrange any of these seminars please contact either your local sales contact or the main office.

Modis 25 Internal Components

Dorman Smith Circuit Protection Devices
Modis has been designed to utilise Tyco products for all aspects of control, protection, monitoring and communications. All devices are designed to comply with the appropriate IEC standard and manufactured to ISO 9001 procedures. A brief synopsis of the available devices is given below;

MCBs: Loadlimiter XS
A comprehensive range of MCBs, featuring B, C & D characteristics, with a current range spanning from 6A to 63A. In addition to the single pole, double pole, triple pole and four pole devices a complete range of complementary RCBOs and RCCBs is available. Fully compliant with EN 60898 the Loadlimiter XS range is the ideal choice for final circuit protection within any switchboard or distribution scheme. Note that a detailed range of enclosure systems are also available for instances where final circuit distribution boards are sited remote from the actual switchboard. Loadlimiter XS MCBs

MCCBs: Loadline Y-Frame

The Loadline Y-Frame MCCB range spans current ratings from 20A to 1600A and is complemented by a comprehensive range of accessories. All devices comply with IEC 60947-2 and EN 60947-2. The Y-Frame series has been introduced to meet increasing market demands for higher breaking capacities with the option of thermal / magnetic or electronic trip unit protection. The electronic variants feature selectivity utilisation category B throughout and can read up to the 19th harmonic. The thermal / magnetic devices are unaffected by harmonic distortion. The range is completed by a series of generator MCCBs and a range of temperature calibrated thermal / magnetic devices for use in tropical climates

ACBs: Loadline Z-Frame

The Z-Frame is the latest step in development of the Dorman Smith product portfolio. The Z-Frame range utilises unique technologies and features a high number of patented innovations that make this family of ACBs one of the leaders in its class. All devices comply with IEC 60947-2 and EN 60947-2. The range spans a current rating spectrum from 800A to 4000A in just 3 Frame sizes. A 6300A variant is available for use within Loadframe 63. The units are available as 3-Pole and 4-Pole variants and offer the user the choice of fixed or withdrawble pattern chassis. The ACBs are complemented with a wide range of accessories ranging from simple key locks to intelligent trip units offering data measuring and communication facilities.

Loadline Y-Frame MCCBs

Fuse Combination Units: Loadswitch

Loadswitch has been designed to exceed the requirements of BS EN 60947-3 and to offer solutions demanded by our customers where ease of installation and ever increasing cable sizes are required. A full-uninterrupted duty ensures that the unit can maintain full rated load indefinitely. A utilisation category of AC23A and short-circuit capacity of 80kA enables Loadswitch to be installed with confidence on any inductive or resistive load. The robust steel enclosure of the housed variant is finished in epoxy powder coating light grey RAL 7035 and has a door that will open through 180 degrees for ease of access with padlocking off as standard. Up to three padlocks can be attached with ease. Cable spreading room (which can easily be reversed by the installer) is allowed for at the bottom of the housed unit. Loadline Z-Frame ACBs Further details of these products can be found in the appropriate product catalogues.

Loadswitch Fuse Combination Units

Modis 25 Internal Components

Crompton Instruments Power Measurement, Control and Protection Solutions
Crompton Instruments offer an extensive range of products designed for the measurement, control, analysis and communication of power and energy consumption, and power quality data. Crompton has earned a world wide reputation for innovation, quality, service and technical expertise for a diverse array of industries and applications. Crompton Instruments are the default choice of instrumentation and power measurement in all Modis assemblies.

Integra Digital Metering Systems

A comprehensive range of fully programmable, high accuracy multi function digital metering systems offering measurement, display and communication for all power monitoring applications, including true RMS system values, power quality data and total harmonic distortion measurement. To suit requirements, Integra products offer various output options and case styles with high quality LED or LCD display.

Integra Digital Metering Systems

Kilowatt Hour Energy Meters

An innovative range of panel mounted or DIN rail mounting meters ideal for monitoring energy consumption. These self contained meters offer combined kW.h or kVAr.h energy measurement, with pulsed or analogue output options and selectable CT and VT ratios, thus replacing the need for rotating disc meters and separate instantaneous wattmeters.

Paladin and Integra Transducers

An extensive range of high specification transducers providing measurement, isolation and conversion of electrical parameters into industry standard DC output signals, RS232 and Modbus. The range offers protection against high voltage and overload, and resistance to vibration.

Protector Trip Relays

Paladin Transducers A comprehensive range of electronic control products providing continuous monitoring and protection of any electrical parameter. Designed to suit a wide variety of applications, the range offers both traditional and technologically advanced products, including single parameter units, earth leakage protection, ground fault protection, vector shift and ROCOF, and sophisticated multifunctional microprocessor based system protection relays.

Meter Relays
A comprehensive range of digital and analogue meter relays, and digital bargraph indicators and controllers offering measurement, monitoring and control of any electrical or process parameter. Relays combine a highly accurate indicator with high and low set points, which operate alarm and control circuits when the monitored signal value deviates from the set point limits, ideally suited for process control and load shedding applications.

Digital Indicators
Meter Relays A highly versatile range of digital indicators providing accurate measurement and clear indication of AC and DC current, voltage and frequency. The range offers LED and LCD digital indicators, and bargraph indicators and controllers ideally suited for control panels and switchboards, monitoring systems, power generation and control applications.

Analogue Instruments
High quality analogue instruments designed to measure an extensive range of electrical and electronic parameters. Instruments are precision engineered and robust in design, ensuring accurate measurement and display in the most demanding of environments. This extensive range offers various styles, sizes and specifications to meet the exacting needs of industry. Further details of these products can be found in the appropriate product catalogues.

Analogue Instruments

Modis 25 Internal Components

Bowthorpe Transient Voltage Surge Suppression Protective Devices
Bowthorpe EMP TVSS specialises in surge protectors for Mains Power, Voice and Data Systems for applications in the computer, telecommunication, industrial, oil, medical and professional electronics markets. An extensive range of products is available to meet an extraordinary range of demanding applications and diverse power and communication system environments around the world. Bowthorpe offer a co-ordinated system for total site protection, which is designed to provide comprehensive protection at a reasonable cost. This co-ordinated strategy begins where power and communication lines enter a building and ends with special devices for extremely sensitive or critical equipment. All protection products and components are designed and manufactured to BS6651 and other International Standards. Bowthorpe TVSS components are the default choice of TVSS in all Modis assemblies. Lightning and Surge Protection to BS6651

Modular Distribution Surge Protectors

A range of distribution panel protectors for single and three phase power systems, featuring exceptionally high surge handling capabilities of 90, 150 and 300kA. The MDSP is intended for high lightning exposure areas and critical systems where long life and low maintenance are required.

Modular Distribution Surge Protectors

Normally open and normally closed relay contacts provide remote indication of protection status. Models with Silicon Avalanche Diode Modules (SAD) with extremely low clamping and exceptionally fast response times are particularly suited to mobile telecom applications.

Distribution Surge Protector

These general purpose, hardwired single and three phase distribution panel protectors with 30kA of surge capacity and two stage (redundant) protection provide pre-failure indication. DSP600 Series L & N types have site fault condition indicators and relay contacts, which provide remote indication of protection status. Modular Distribution Surge Protectors

Sub Panel Protectors

Surge protection for sub-distribution panels which supply mission-critical hardware such as mini-computers, PABX systems, network file servers and mainframes is available from the compact 10kA 6651C Protector. This hardwired, panel mounting surge protector with redundant protection and full protection status monitoring is available in single and three phase versions. Further details of these products can be found in the appropriate product catalogues.

Distribution Surge Protector

Sub Panel Protectors

Modis 25 Forms of Separation

Form 1

Form 4 Internal Shielding

Form1 Internal Shielding

Fundamentals of Separation
In accordance with EN60439-1, separation of the various elements of an Assembly: busbars, functional units, terminals, can be claimed providing one or more of the following criteria are met: 1. Protection against contact with live parts belonging to adjacent functional units. The degree of protection shall be at least IP2X or IPXXB. As a minimum, finger contact with live parts in adjacent functional units is prevented. With Assemblies supplied by Dorman Smith Switchgear this is extended to include protection against finger contact between: functional units, adjacent busbars and busbar connections, and terminals as required for the particular form of separation being considered. The requirement is proven with the standard test finger. Form 4A Type 2 2. Protection against the passage of solid foreign bodies from one unit of an Assembly to an adjacent unit. The degree of protection shall be at least IP2X. The minimum requirement is proven by the standard test finger not being able to touch live parts in adjacent units and a 12mm ball not being able to pass between units. In practice, a higher degree of protection may be required for horizontal partitions to prevent small objects from falling between compartments and should be identified in the contract specification. These two fundamental criteria are interrelated. Dorman Smith Switchgear will therefore ensure all these are fully met in respect of the particular form of separation offered.

Typical Applications
Form 1 - No separation Typical applications are places where the switchboard is in a secure location and where failure of the switchboard will cause little or no additional disruption to other areas being fed by the switchboard. Form 4B Type 6 Form 2 - Separation of busbars from functional units. Applications may well be the same as Form 1 but where it is important that a fault in the switchboard need not affect all functional units being fed from the same busbar system. Form 3 - Separation of busbars from functional units and the functional units from one another but not their terminations. Should be applied where it is important to provide protection from internal live parts and where failure of functional units being fed from the same busbar would cause unacceptable disruption. Form 4 - Separation of busbars from functional units and the functional units from one another including their terminations. Should be applied where it is important to provide protection from internal live parts and where failure of functional units being fed from the same busbar would cause unacceptable disruption. Because all the terminations are separated it is possible to isolate and work on a single functional unit.

Modis 25 Forms of Separation

UK National Annex
The internal separation of Assemblies by barriers or partitions is specified in Section 7.7 of EN60439-1: 1999 and is subject to agreement between the manufacturer and the user. The table below gives additional information regarding different types of construction, based on typical practice in the United Kingdom. Other types of construction are not precluded, and it is not essential to adopt any of the listed types in order to comply with the requirements of the Standard. However, in order to achieve agreement between manufacturers and users, it is recommended to adopt one of the listed types of construction.

Main Criteria

Sub Criteria

Form

Type of Construction

No separation

Form 1

Terminals for external conductors Form 2a not separated from busbars.

Separation of busbars from the functional units. Terminals for external conductors Form 2b separated from busbars.

Type 1 Busbar separation is achieved by insulated covering, e.g. sleeving, wrapping or coatings

Type 2 Busbar separation is by metallic or non-metallic rigid barriers or partition.

Separation of busbars from the functional units and separation of all functional units from one another. Separation of the terminals for external conductors from the functional units, but not from each other.

Terminals for external conductors Form 3a not separated from busbars.

Type 1 Busbar separation is achieved by insulated coverings, e.g. sleeving, wrapping or coatings Terminals for external conductors Form 3b separated from busbars. Type 2 Busbar separation is by metallic or non-metallic rigid barriers or partitions.

Type 1 Busbar separation is achieved by insulated coverings, e.g. sleeving, wrapping or coatings. Cables may be glanded elsewhere. Terminals for external conductors in the same compartment as the Form 4a associated functional unit.

Type 2 Busbar separation is by metallic or non-metallic rigid barriers or partitions. Cables may be glanded elsewhere.

Separation of busbars from the functional units and separation of all functional units from one another, including the terminals for external conductors which are an integral part of the functional unit.

Type 3 Bushbar separation is by metallic or non-metallic rigid barriers or partitions. The termination for each functional unit has its own integral glanding facility. Type 4 Busbar separation is achieved by insulated coverings, e.g. sleeving, wrapping or coatings. Cables may be glanded elsewhere. Type 5 Busbar separation is by metallic or non-metallic rigid barriers or partitions. Terminals may be separated by insulated coverings and glanded in common cabling chamber(s). Type 6 All separation requirements are by metallic or non-metallic rigid barriers or partitions. Cables are glanded in common cabling chamber(s). Type 7 All separation requirements are by metallic or non-metallic rigid barriers or partitions. The termination for each functional unit has its own integral glanding facility.

Terminals for external conductors not in the same compartment as associated functional unit, but in Form 4b individual, separate, enclosed protected spaces or compartments.

10

Modis 25 Forms of Separation

Form 4a Type 2

Incoming Unit

Outgoing Units

Outgoing Units

Outgoing Units

Incoming Cable Outgoing Cables

Outgoing Cables

Form 4b Type 6

Incoming Unit

Outgoing Units

Outgoing Units

Outgoing Units

Compartment

Incoming Cable Outgoing Cables

11

Outgoing Cables

Modis 25 Ingress Protection

IP Ratings
EN 60529 : 1991 describes a system for classifying degrees of protection provided by enclosures of electrical equipment with a rated voltage not exceeding 1000V ac and 1500V dc.

First Number Protection Against Solids

IP Example Protection Against Solid Foreign Objects - Tests Protection of Persons Against Access To Hazardous Parts With: Non-protected

No protection. Full penetration of 50mm diameter sphere allowed. Contact with hazardous parts not permitted. Full penetration of 12.5mm diameter sphere not allowed. The jointed test finger shall have adequate clearance from hazardous parts. The access probe of 2.5mm diameter shall not penetrate. The access probe of 1.0mm diameter shall not penetrate. Limited ingress of dust permitted (no harmful deposit). Totally protected against ingress of dust.

IIIIIIIIIIIIIIIIIIIII I III

External Shielding to IP3X Minimum

II IIIII III

50

Back of hand

IIIIIIIIIIIIIIIIIIIIIII II

IIIIIIIIIIIIIIIIIIIII I III

III II IIIIIIIIIIIII II I III II

II

12.5

II III I II III IIIIIIIIIIIIII I

Internal Segregation of Z-Frame ACB

The markings used to indicate the degree of protection consist of the letter IP (Ingress Protection) followed by two characteristic numerals. The first characteristic numeral designates the degree of protection with regards to solid objects. The second numeral designates the degree of protection against the ingress of liquid. It is intended to provide indication of: a) Protection of persons against access to hazardous parts inside enclosures and protection of the equipment inside the enclosure against the ingress of solid foreign objects. b) Protection of the equipment inside the enclosure against harmful ingress of water. For switchboard assemblies intended for indoor use EN60439-1 : 1999 states that there is no requirement for protection against ingress of water (clause 7.2.1.1) and that the IP references preferred for assemblies designated for indoor use are: IP00 IP2X IP3X IP4X IP5X

Where some degree of protection against ingress of water is required the following table gives the preferred IP combination numbers:-

Second Number Protection Against Liquids

IP Example Protection Against Liquids - Tests No protection. Protection against vertically falling drops of water. Protection against vertically falling drops of water with enclosure tilted 15 from the vertical. Protection against sprays to 60 from the vertical - limited ingress permitted. Protection against water splashed from all directions - limited ingress permitted. Protected against low pressure jets of water from all directions - limited ingress permitted. Protected against strong jets of water, eg. for use on shipdecks limited ingress permitted.
15cm min.

III III

III III

III
IIII

II IIIIIII

Finger

III

II

Tool

Wire

Wire

Wire

Protection From Water Non-protected Protection against vertically falling drops of water Dripping up to 15 from the vertical Limited spraying Splashing from all directions Hosing jets from all directions Strong hosing jets from all directions Temporary immersion

Protected against the effects of immersion between 15cm and 1m. Protected against long periods of immersion under pressure.

Continuous immersion

12

Modis 25 Type Testing

LV Switchboard Standards
The standard to which LV Switchboards should be manufactured to is EN60469-1. The standard is non prescriptive and allows for manufacturers to be innovative while fully meeting the standard and, most importantly, providing the user with the equipment required. The standard details two categories of assembly, Type Tested (TTA) and Partially Type Tested (PTTA). The definitions for these are as follows; An Assembly: A combination of one or more low voltage switching devices together with associated control, measuring, signalling, protective, regulating equipment etc., completely assembled under the responsibility of the manufacturer with all the internal electrical and mechanical interconnections and structural parts Modis 25 Assemblies are likely to be produced for specific customers and who may specify equipment to their own specifications and requirements. Hence the phrase by agreement between manufacturer and user is used throughout the standard. Type Tested Assembly: A low voltage switchgear and controlgear assembly conforming to an established type or system without deviations likely to significantly influence the performance, from the typical ASSEMBLY verified to be in accordance with this standard Partially Type Tested Assemblies: A low voltage switchgear and controlgear assembly, containing both type-tested and non-type-tested arrangements provided the latter are derived (e.g. by calculation) from type-tested arrangements which have complied with the relevant tests

Why Type-Test?
EN60439-1 States: Type tests are intended to verify compliance with the requirements laid down in this standard for a given type of ASSEMBLY. Typical Arrangement Showing Available Cabling Space Type tests are carried out on a sample of such an ASSEMBLY or on such parts of ASSEMBLIES manufactured to the same or similar design. They shall be carried out on the initiative of the manufacturer The standard also requires switching devices and other components to comply with their own relevant standards. Type tests for assemblies are carried out for; Verification of Temperature Rise Verification of Dielectric Properties Verification of Short Circuit Withstand Strength Verification of the Effectiveness of the Protective Circuit Verification of Clearances and Creepage Distances Verification of Mechanical Operation Verification of the Degree of Protection

They are intended to; Loadswitch Cabled to EN60439-1 Form 4A Type 2 Prove the design capability Be conducted on representative samples for the design of Assembly, but are not intended to be undertaken on an Assembly which is subsequently put into service Be undertaken at the instigation of the manufacturer. It is recognised that it is impractical to test every conceivable configuration of circuit within an Assembly Be tested either in the manufacturers own laboratory or at an independent facility Have results recorded in reports or certificates that are available for examination

Modis and Type Testing

In accordance with the guidelines of the governing specifications for Dorman Smith Modis, all type test certificates are valid for all Modis Systems, irrespective of assembler, provided that they are constructed in accordance with our assembly instructions.

Detail Illustrating Vertical and Horizontal Busbar Arrangement 13

Modis 25 Dimensional Guide

45

800

600

500

45

800

600

500

2500A BUSBARS

1600A BUSBARS

1600A BUSBARS

Cubicle Heights 2536mm 2170mm 1984mm

Usable Space 27 Modules 24 Modules 21 Modules

Usable Space 30 Modules 27 Modules 24 Modules

Usable Space 30 Modules 27 Modules 24 Modules

Cubicle Heights 2536mm 2170mm 1984mm

Usable Space 27 Modules 24 Modules 21 Modules

Usable Space 30 Modules 27 Modules 24 Modules

Usable Space 30 Modules 27 Modules 24 Modules

2500A BUSBARS

1600A BUSBARS

1600A BUSBARS

TOP BUSBARS FRONT ELEVATION Note: Busbars can be mounted at the top or bottom of cubicles

BOTTOM BUSBARS FRONT ELEVATION Note: Busbars can be mounted at the top or bottom of cubicles

45

600

500

500

500

600

Cubicle Depth B

H.BAR 1600A

H.BAR 1600A

H.BAR 1600A

1600A TPN ACB

OCR LSI

MANUAL

800A MCCB Y6H 630A

1984

DRAWOUT VERT BB MF INTEGRA M-100 VERT BB 400A MCCB Y5H 125A MCCB Y2HX 125A MCCB Y2H 250A 160A MCCB Y3H 20A MCCB Y2H

315A

63A

Includes Horizontal Busbars

Includes Horizontal Busbars

30 Modules SIDE ELEVATION 600 510

TYPICAL EXAMPLE FRONT ELEVATION 600 510 45 500 410 500 410 500 410

Cubicle Depth B 45

PLAN VIEW

14

Modis 25 Dimensional Guide

Cubicles
750mm Deep (B) Cubicles 2356, 2170, 1984mm High Rear Access Fuse Switch 200A-800A Y Frame MCCBs Y2-Y5 Y Frame MCCBs Y6 Z Frame ACBs Z2 up to 2000A Z Frame ACBs Z3 up to 2500A Horizontal Busbars 1250, 1600, 2500A 1000mm Deep (B)

500mm Wide 600mm Wide 800mm Wide 500mm Wide 600mm Wide 800mm Wide * * * * * * * * * * * * * * * * * * * * * *

* *

* *

500mm Deep (B) Cubicles 2356, 2170, 1984mm High Front Access Fuse Switch 200A-800A Y Frame MCCBs Y2-Y5 Y Frame MCCBs Y6 Z Frame ACBs Z2 up to 2000A Z Frame ACBs Z3 up to 2500A Horizontal Busbars 1250, 1600, 2500A Cableways

750mm Deep (B)

500mm wide 600mm wide 800mm wide 500mm wide 600mm wide 800mm wide * * * * * * * * * * * * * * * * * * * * * * * *

* *

* *

* *

Vertical Busbars Front/Rear Access 1250/1600A 2500A

Height 6 Mod to 30 Mod 6 Mod to 27 Mod

500mm wide *

600mm wide * *

800mm wide * *

Devices
Fuse Switches 63/200A 315/400A 630/800A 1 Mod = 62mm 3 Mod 6 Mod 12 Mod All fuse switches as standard are mounted A filler plate is required in 500w cubicles LH or for 600w mounting RH side

MCCBs Y2 Frame Y3 Frame Y5 Frame Y6 Frame

1 Mod = 62mm 3 Mod 3 Mod 6 Mod 6 Mod

A filler plate is required Y2 Y3 Y5 MCCBs as for 600w mounting standard are mounted in 500w cubicles LH or Y6 MCCBs 600w cubicle RH side only

ACBs Z2 Frame 800/2000A Z3 Frame 2500A

1 Mod = 62mm 10 Mod 10 Mod 600 wide sections only 800 wide sections only

15

Company Profile
Dorman Smith Switchgear
Pedigree Since 1878 Dorman Smith products have been associated with high quality developments in all aspects of electrical switchgear. Historically, the company was a pioneer in the introduction of both fuse switch and moulded case circuit breaker technologies. Latterly, Dorman Smith was at the forefront of the utilisation of PLC control systems that provided intelligent switching of control circuits. Product Portfolio The Dorman Smith product portfolio caters for a wide range of applications covering a current span of 6A to 6300A. The range which encompasses MCBs, MCCBs, Fuse Combination Units, ACBs and all associated enclosure systems caters for the distributor, contractor, end client and OEM markets. The range offers proven reliability across a diverse array of industries including power generation, process control, industrial, commercial, utility, defence and energy management applications. Sheet Metal Facility at Dorman Smith Design and Development To meet the challenges of ever decreasing lead times and industry developments our design and manufacturing processes are constantly reviewed and updated. Dorman Smith is committed to continual product development and improvement. In addition to the mainstream product developments the company has been involved in the development of strategic customer partnerships for the supply of bespoke design solutions. Global Reach Under the Tyco banner, Dorman Smith now has a global presence enabling prompt response to customer requirements and regional specific technical expertise and application advice. The combination of local knowledge and over 120 years of research and product development ensures Dorman Smith products continue to provide the highest standards of performance and user convenience.

Manufacturing
The quality and reliability of Dorman Smith products is achieved through highly innovative manufacturing techniques, implemented by a multi skilled and flexible workforce. Dorman Smith Y-Frame MCCBs Quality Systems Dorman Smith design and manufacturing processes have ISO 9001 accreditation and all products carry the appropriate BS, EN and IEC approvals. Computer technology aids Dorman Smith designers to develop new products in harmony with customer requirements and to exceed the demands of international standards. Product Control All aspects of the manufacturing processes are vigorously controlled. To obtain consistently high levels of productivity and service the company operates Kanban control systems in conjunction with a fully integrated business computer system. This system provides the opportunity to delegate routine material transactions in the manufacturing cells and ensures a fast, reliable and cost effective method of manufacture. All the above disciplines enable Dorman Smith to provide the customer with a technically capable product at a competitive market rate.

About Tyco Electronics Energy Division

Modis 12 Sub Distribution Systems The Energy Division, a global manufacturer of products and systems for the electrical power industry, is an operating unit of Tyco Electronics. Today, the Energy Division employs more than 3000 people and has total annual sales of over $500 million. Power utilities and equipment manufacturers extensively employ our products, in rail transport systems and in industry around the world. Our global network of technical and sales representatives provides expert application and engineering assistance, handson field training and strong after sales support. Expertise in materials science, product design and process engineering goes into the invention, development, manufacture and marketing of high performance products that help our customers successfully master the challenges of their businesses. Our wide range of reliable and cost-effective solutions is continuously expanded through new product developments and the integration of new product lines from companies that make up the Energy Division.

Tyco Energy Division HQ, Ottobrun, Germany 16

All of the above information, including drawings, illustrations and graphic designs, reflects our present understanding and is to the best of our knowledge and belief correct and reliable. Users, however, should independently evaluate the suitability of each product for the desired application. Under no circumstances does this constitute an assurance of any particular quality or performance. Such an assurance is only provided in the context of our product specifications or explicit contractual arrangements. Our liability for these products is set forth in our standard terms and conditions of sale. ALR, AMP, AXICOM, B&H, BOWTHORPE EMP, CROMPTON INSTRUMENTS, DORMAN SMITH, DULMISON, GURO, HELLSTERN, LA PRAIRIE, MORLYNN, RAYCHEM, and SIMEL are trademarks.

Energy Division a pioneer in the development of economical solutions for the electrical power industry. Our product range includes: Cable accessories, connectors & fittings, electrical equipment, instruments, lighting, insulators & insulation enhancement and surge arresters. For more information and your country contact person, please visit us at: http://energy.tycoelectronics.com Tyco Electronics UK, Dorman Smith Switchgear Blackpool Road, Preston, PR2 2DQ, UK Phone: +44(0) 1772 325 400 Fax: +44(0) 1772 726 276 PAGE 00

Tyco Electronics DOS-EPP-M25CAPBROC-09/03