TDF4 INDEPENDENT TIME RELAY

4 CO CONTACTS PROGRAMMABLE
DEFINITE TIME RELAY

APPLICATIONS MAIN FEATURES

> Direct operation on MV/HV primary equipment. > Designed to allow continuous operation even in
> Galvanic isolation between the control system high temperature ambient, within the whole
and the primary equipment. voltage range..
> Applications where is required high breaking > Self-cleaning contacts.
capacity.. > High level of electrical insulation between
> Timed contact multiplication in control systems circuits.
of HV/MV installations and power plants.. > Capable to operate under low duty loads,
> Low duty loads control, with control for digital activate digital inputs, and operate without any
inputs. load.
> Edge to pulse conversion > 1% time accuracy operation.
> Tested to comply seismic Standards.
(EN61373; IEEE 344; IEEE 323; IEEE C37.98
Standards.)
> Sturdy design.
> Several programmable modes, with different
timing from tens of milliseconds to tens of hours.
> High protection degree (IP40), with transparent
Substations, Power plants and cover, making them suitable for use in salty and
tropical atmospheres.
Industry
> Wide range of auxiliary voltage levels (Vdc and
> Critical process automation. Vac).
> Command and Control. > Versatile installation (plug-in relays in a wide
range of sockets with different installation
> Alarm signaling and filtering.
configurations).
> Low duty loads.
> The ruggedness of the output contacts makes
possible direct action on HV and MV switchgear,
as their making/breaking capacities, continuous
through-current and overvoltage capacity
guarantee very high insulation.

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FUNCTIONALITY
1. MODE SELECTOR

Below the 3 timing selector, there is a fourth 10 position selector, which allows to
choose the different functions that the relay can execute. The way to make the
selection is using the spike of the arrow. The time diagrams for each of the functions
available are printed on the right side of the relay.

ARTECHE time-lag relays allow 16 timing ranges (from 30 ms to 99h) and 10

different functions (F0, F7, F9: pick-up timing - F1: pickup timing acceleration - F2,
F3, F8: drop-out timing - F6: flashing timing - F4, F5: special timing). All of them
being easily adjustable from the front of the relay.

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 2. MODES WITH INDEPENDENT TRIGGERING AND DEPENDENT TRIGGERING

In the connection diagrams for the TDF4 there are two different models for triggering. The dependent trigger and
the independent one.

The dependent model has its trigger between the connector labeled B1 and connector labeled 1. This implies the
trigger and the power input of the relay shares the same power source, referenced both to connector 1.

The independent model does not share the negative of the trigger with the one of the power input, so this model
let us the use of different trigger power source, and it is applied between the connector labelled B1-A1, being B1
the positive and A1 the reference (negative) of the triggering signal.

3. TIME SELECTION

To choose the desired timing, the relays have 3 selectors available on the front: All
the selectors are discrete step type (not continuous), and for this reason the arrow
should not stay in an intermediate position.

The 16-position selector with the indication “Range”, on top right zone, allows to
choose between the different 16 time ranges available.

Each of the ranges is determined by a lowest value limit and a top value, as well as
the step, as it is shown in the following table. This table is printed also on the left
side of the relay.

Range Low Limit Top Limit Step

0 30 ms 990 ms 10 ms
1 30 ms 2,97 s 30 ms
2 0,1 s 9,9 s 100 ms
3 0,2 s 19,8 s 200 ms
4 0,5 s 49,5 s 0,5 s
5 1s 99 s 1s
6 3s 297 s 3s
7 5s 495 s 5s
8 10 s 990 s 10 s
9 0,5 min 49,5 min 0,5 min
A 1 min 99 min 1 min
B 3 min 297 min 3 min
C 5 min 495 min 5 min
D 10 min 990 min 10 min
E 0,5 h 49,5 h 0,5 h
F 1h 99 h 1h

NOTE 1: If the tens selector is placed on the 0 and the unit one on the 0 or on the 1, the relay temporizes the step of the selected range.

NOTE 2: As the relay cannot temporize less than 30 milliseconds, if by the selectors it is chosen an option that would suppose a timing lower
than this value, the relay will temporize 30ms. (for example, if it is selected the range 0, tens 0, and units 1 or 2, according to what was mentioned
on the preceding page, the timing would be 10 ms or 20 ms respectively, but the relay will temporize 30 ms as it is the minimum timing limit).
On the rest of the positions the timing will be the selected value.

NOTE 3: If all the selectors are placed on 0 (Tens 0, Units 0, Range 0 and Function 0), the timing will be disabled and the relay will operate in
the minimum time possible (electronical and mechanical initialization delay). This time is a bit lower than 20ms. In a relay with an instantaneous
coil, both coils the instantaneous and the time-lag will operate at the same time.

NOTE 4: The accuracy of the timing will be ±5ms or ±1%, the one which is higher.

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TECHNICAL SPECIFICATIONS

Construction Characteristics
Applications General purpose instantaneous relay
Contacts 4 Definite time changeover contacts

Connections

Weight (g) 265 gr265 gr

Dimensions (mm) 42.5 x 50.4 x 96.6 (F large type)42.5 x 50.4 x 96.6 (F large type)

Electrical Characteristics
24, 48, 72, 96, 110, 125, 220 , 250 Vdc, 24, 48, 72, 96, 110, 125, 220 , 250
Standard voltages
(50/60 Hz) Vac
+25% -30% (but 250 Vdc: +10% - 20%) Un+25% -30% (but 250 Vdc: +10% -
Coil characteristics Voltage range
20%) Un
Pick-up / release voltage See pick-up/release voltage-temperature curves
Average consumptions < 6.1W
Contact material AgNi
Contacts resistance ≤ 30 mΩ (≤ 15 mΩ LDL range)
Distance between contacts 1,8 mm
Continuous current capacity 10 A
Contacts Short-time current capacity 30 A 1s. 80 A 200 ms 200 A 10 ms.
Making capacity 40A, 0,5s, 110Vdc | 30A, 1s, 36Vdc, | 30.000 operations (1op/15s)
Breaking capacity 100.000 operations
Max. breaking capacity *See curves
Umax opened contact 250 Vdc / 400 Vac
Dielectric strength
2 kV. 50Hz. 1 min
independent circuits
Dielectric strength open
1,5 kV. 50Hz. 1 min
contacts
Impulse voltage
5 kV. 0,5 J. 1,2/50 µs
independent circuits
Impulse voltage Open
2,5 kV. 0,5 J. 1,2/50 µs
contacts
Insulation resistance 500 Vdc.; > 100MW

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Endurance Characteristics
Mechanical endurance 1*107 operations

Other Standard Compliances

Vibration and shock Stress 60255-21-1 Class II
during operation 60068-21-2 Class I
Mechanical Vibration and shock Stress 60255-21-1 Class II
Vibration and during transport
Bump 60068-21-2 Class I
IEEE 344-2004
Seismic Qualification For Relay relapsed >3,5 g +10%
IEEE 323-2003
Nuclear Power Stations Relay operated >5 g +10%
ANSI/IEEE C37.98-1987

High frequency 1MHz burst IEC 61000-4-18(2006) + Common mode: 2,5kV 1MHz and 100 kHz
disturbance test A1 (2010) Differential mode: 1kV, 1MHz and 100 kHz
Common mode: 4 kV, 5kHz, 1min
Electrical Fast transient EN 61000-4-4
Differential mode: 2 kV, 5kHz, 1min
Common mode: 2kV 1,2/50µs. (voltage) | 8/20µs. (current)
Surge EN 61000-4-5
Differential mode: 1kV 1,2/50µs. (voltage) | 8/20µs. (current)
Emc Immunity.
These tests are Radiated electromagnetic
EN 61000-4-3 80-1000MHz, 10V/m, 80% AM (1kHz)
only for models field
OP:1xxxx Digital telephones radiated
EN 61000-4-3 80-1000MHz and 1400-2700MHz, 10V/m, 80%
electromagnetic field
Conducted disturbances
induced by radio frequency EN 61000-4-6 0.15-80MHz, 10V, 80% AM (1kHz)
fields
Electrostatic discharges EN 61000-4-2 Contact ±15 kV | Air mode ±15 kV
Magnetic fields at power
EN 61000-4-8 100 A/m 1min. | 1000 A/m 1s.
frequency
Cover: 30Mhz-1GHz Group 1 class A | Power supply: 0.15-
EMC emissions Radio disturbance CISPR11, CISPR22 0.5 MHz, 79dB(µV) (quasi peak) / 66dB(average) |0.5-30
MHz, 73dB(µV) (quasi peak) / 60dB (average)
Maximum temperature in Maximum ambient T, 10A through half the contacts. Time
EN 61810-7
the relay parts until thermal stability
Thermal test
Maximum ambient T, Vmax, 10A through half the contacts.
Thermal Endurance EN 61810-7
1.000 hours
Cold test EN 60068-2-1 (Test Ab) - 40˚C, 96 hours
Dry heat test EN 60068-2-2 (Test Bc) 70˚C, 96 hours
Environmental EN 60068-2-14 (Test Na) TA =-40˚C; TB = +70˚C
Tests
Damp heat test (Cyclic) EN 60068-2-30 (Test Db) 55˚C, 6 cycles
EN 60068-2-78 (Test
Damp heat, steady state 40˚C, 93% Rh, 56 days
Cab)
Immunity to capacitive
Functional Tests ESI 48-4 EB1: Low burden
discharges
Protection Degree IP4X
Operating altitude <2000 m

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BREAKING CAPACITY CURVES
The breaking capacity is a critical parameter on the design and the application of the relay. Its mechanical life could
be considerably reduced, depending on the value of the load (especially with heavy duty loads), the number of
operations and the environmental conditions in which the relay is operating.

48 Vdc 125Vdc
Resistive load:
L/R = 0 ms
Inductive load:
L/R = 20 ms
Highly inductive load:
L/R = 40 ms

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PICK-UP & RELEASE VOLTAGE-TEMPERATURE CHARTS

RELAY DIMENSIONS

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SOCKETS AND RETAINING CLIP
The dimensional and format of the sockets for the relay TDF4 are “F” type. Please refer to the document
“MU_BASES_RELES_EN” for further and more precise details. The sockets & clips available for this model are:

Sockets

FN DE IP10
FN DE2C IP10

FN DE IP20
FN DE2C IP20

FN TR OP
FN TR2C OP

FN DE CL IP20

FN EMP OP

Clips
Plastic E0
E43 (FN DE)
-
E44 (FN TR)

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OPTIONS FOR THIS RELAY.
Dependent/independent triggering:

This option is selected in the second digit of the OP code, with this encoding

n Trigger voltage level in volts dc/ac

0 Dependent triggering

1 24 Vdc/Vac

2 48 Vdc/Vac

3 60 Vdc/Vac

4 72 Vdc/Vac

5 96 Vdc/Vac

6 110 Vdc/Vac

7 125Vdc/Vac

8 220 Vdc/Vac

This relay must be ordered indicating the chosen options

Coil rated Tigger
Relay Model Variant 0
voltage dependent/independent

TDF4 125 Vdc/Vac --/LDL OP: 0 n 0

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