General Information
GENERAL INFORMATION
MARATHON ELECTRIC WEBSITE AND E-COMMERCE
Since 1913, Marathon Electric’s name has been recognized Information can be accessed instantly, any time of the
for engineering excellence, custom-designed products day on ME-business. Marathon customers can sign-up
and an extensive product line of industrial quality motors. for ME-business by contacting their sales representative.
Available in all popular enclosures from 1/12 HP through
3000 HP and in a variety of mounting configurations, ME-business can be accessed through: www.
Marathon Electric’s unique designs provide more ways marathonelectric.com.
in which to add accessories, such as blowers, brakes and
encoders, to our motors than anyone else in the motor • Stock Availability
business. Our state-of-the-art lab facilities are equipped • Order Status
and staffed with the finest resources available to ensure • Shipping Information
successful utilization of our products. Finally, as the • Invoice Information
preferred supplier of motors to most of the top drive • Product features and performance data
manufacturers in North America, we have what it takes to
be a leader in understanding the interaction of drives as
they are applied with AC induction motors.
Marathon Electric Nameplate Information - HOW TO READ THE NAMEPLATE
The nameplate is the key to selecting the proper replacement motor.
CSA Verification Mark - Complies with
CSA’s Energy Efficiency Verification
Service and their Standard C390 - C390
is the Canadian efficiency equivalent of
2 1 3 4 EPAct.
5 6 Underwriters Laboratories, Inc.
7 8 9 10 11 12
13 14 15 16 17
UL Recognized Component Mark
18 19 20 UL file #
32 33
21 22 CE (Conformité Européene) Marking
This mark signifies the motor complies
23 24
25 26 with the European Low Voltage
27 28 Directive.
29 CSA Mark - Certified by the Canadian
30 31 Standards Association
CSA file #
CC# - Compliance Certification Number
as per assigned by the Department
of Energy. Motors meeting EPAct
efficiencies or higher will have this
Motor Specifications (Example) Agency Symbols number.
1. MODEL - The ID number 19. WT/LBS - Motor weight in pounds
2. DATE CODE - The month and year manufactured 20. WT/KG - Motor weight in kilograms
3. MTG. - Mounting 21. HZ - Input frequency of the power supply, usually 50 or 60 HZ
4. FRAME - The size & mounting 22. VOLTS - Voltage rating of the motor at the operating frequency
5. PART NO. - Customer part number 23. HP - Rated horsepower the motor will produce
6. SER. - Serial number 24. KW - Rated output in watts
7. TYPE - Electrical type 25. F.L. AMPS - The rated load current expressed in amps at nameplated
8. DES. - Code by NEMA or IEC horsepower with nameplate voltage and frequency
9. PH - Electrical phase usually 1 or 3 26. S.F. - Percentage of the rated horsepower the motor can safely operate at:
10. INS CL - Insulation Class Example: 1.15 SF (115% of rated HP)
11. DUTY - Time rating under load 27. PF / COS - Power Factor / Cosine is the ratio of actual power to the
12. MAX AMB - The allowable surrounding air temperature apparent power
13. ENCL - Enclosure (i.e. TEFC) 28. RPM - Full load speed at rated frequency
14. RISE - The temperature rise over ambient expressed in degrees 29. NOM EFF - Average Efficiency
Celsius when the motor operates at nameplated HP or KW 30. SHAFT END BEARING - Manufacturer drive end bearing number
15. IP - Inherent Protection of the enclosure to solids and liquids as 31. OPP. END BEARING - Manufacturer opposite drive end bearing
defined by IEC 34-5 number
16. IC - Inherent Cooling 32. SHAFT END BRG - Drive end bearing size
17. CODE - NEMA locked-rotor KVA 33. OPP - Opposite drive end bearing size
18. MTH/YR MFG. - Month and year motor was manufactured
SB300 – Prices and Specifications are subject to change without notice. 5
General Information
GENERAL INFORMATION
HOW TO READ A MODEL NUMBER: 5. Electrical Type
Each Marathon Electric motor carries a model number that Single Phase:
can be used to define some of the motor’s physical and A = Permanent split capacitor
electrical characteristics. B = Capacitor start, capacitor run
C = Capacitor start, induction run
Example (For Fractional): 1PC48C17D2000AP N = Split phase start, capacitor run
S = Split phase
This is a breakdown of the model on the nameplate:
Three Phase:
1 P C 48 C 17 D 2000 A P T = Three phase
1 2 3 4 5 6 7 10 11 12 H = Inverter Duty/IEEE841 Inverter Duty
V = Medium Voltage
This is a breakdown of the model in the catalog: DC Power:
E = Permanent Magnet DC
48 C 17 D 2000
4 5 6 7 10 6. RPM or Speed at 60 Hz (Fractional Only)
34 = 2-Pole, 3600 rpm
Example (For Integral): 2QA215TBDRA7076ALL
17 = 4-Pole, 1800 rpm
This is a breakdown of the model on the nameplate: 11 = 6-Pole, 1200 rpm
8 = 8-Pole, 900 rpm
2 Q A 215T B D R A 7076 AL L
1 2 3 4 5 7 8 9 10 11 12 7. Enclosure
D = Dripproof
This is a breakdown of the model in the catalog: E = Explosion proof, non-ventilated
F = Totally enclosed, fan cooled
215T B D R A 7076
4 5 7 8 9 10 G = Explosion proof, fan cooled
O = Open
1. Date Code - Year of Manufacture P = Partial
(Not shown in catalog listings.) S = Semi-enclosed
T = Totally enclosed, non-ventilated
2. Thermal Protection (Not shown in catalog listings.) V = Washdown, non-ventilated
UL Recognized UL Recognized
W = Washdown, fan cooled
Motor Protector Motor
Combination Construction 8. Frame Construction
Integral Fractional (where applicable)
Automatic Reset Automatic Reset Automatic Reset
L = Aluminum (Full Frame) B = Rolled Steel - Sourced
Q Yes Yes
Y = Aluminum (Full Frame) D = Stainless Steel - Sourced
S No No
U No Yes Z = Aluminum (High Mount Down Frame) U = Frameless - Sourced
W # Yes H = Aluminum - Sourced
Manual Reset Manual Reset Manual Reset R = Rolled Steel (Full Frame)
P Yes Yes W = Rolled Steel (Full Frame)
Z No Yes X = Rolled Steel (High Mount Down Frame)
X No No B = Rolled Steel - Sourced
None None None S = Cast Iron (Full Frame)
V No Yes
N = Cast Iron (Full Frame)
P = Cast Iron (High Mount Down Frame)
# Motor protector combination is U.L. recognized only
C = Cast Iron - Sourced
if motor is used in direct drive fan duty application, and D = Stainless Steel
is under locked rotor condition, or is running under
no-load condition. 9. Style Letter (A, B, C, etc. indicate redesign)
3. Date Code - Month of Manufacturer (Not shown in 10. Sequence Number
catalog listings.)
11. Minor Modification Letter(s)
4. NEMA Frame Size - (Integral motors - T and U designate Fractional - 1 letter; Integral - 2 letters
standard shaft, TS and US designate short shaft)
12. Manufacturing Code - A code for the factory where the
motor was manufactured.
6 SB300 – Prices and Specifications are subject to change without notice.
General Information
GENERAL INFORMATION
HOW TO READ A MODEL NUMBER: Continued
Example (“harmonized” motor design): E. Stack Length
A - 5/8” F - 1-1/4” L - 1-7/8” S- 3.0”
A B C D E F G H I B - 3/4” G- 1-3/8” M- 2.0” T- 3-1/4”
5 KH 3 6 K G 142 – X C - 7/8” H- 1-1/2” N- 2-1/4” U- 3-1/2”
D - 1.0” J - 1-5/8” P- 2-1/2” W- 4.0”
E - 1-1/8” K - 1-3/4” R- 2-3/4” Q- Spec.
A. Rotating Device
F. Endshield Construction
B. Type of Winding G & N - Aluminum
KH - Split Phase K - Steel
KC - Capacitor Start, Induction Run C - Cap/Can
K - Polyphase
KCP - Permanent Split Capacitor G. Sequence Number
KCR - Capacitor Start, Capacitor Run
H. Current Revision (blank if original)
C. Lamination Size
3 - 48 frame, 4 - 56 frame I. Type of Overload
X - UL Auto running & locked rotor
D. Length of Frame Y - UL Manual running & locked rotor
48 frame 56 frame S - UL Auto locked rotor
2 5.17 5.73 T - Non-UL Auto running & locked rotor
3 5.42 6.63 U - Non-UL Manual running & locked rotor
4 None None V - Thermostat
5 5.80 7.11 W - UL Motor Parts
6 6.23 None
7 6.63 7.63
8 7.23 8.44
9 Spec. Spec.
ORDERING INFORMATION Non-stock Product Cancellation policy:
When ordering, please include the model number, catalog Cancellation charges for non-stock orders received and
number, description of the motor, quantity, shipping and entered will be determined based on the percentage of
billing instructions. For pricing of non-stock motors, or if completion in the engineering and manufacturing process,
you need assistance in selecting the proper motor, please accounting for all costs plus a reasonable profit. Marathon
contact your nearest Marathon Electric sales representative Electric’s determination of the cancellation charges shall
or local Marathon Electric Distributor. All prices and data be conclusive.
are subject to change without notice.
DISCOUNTS AND MULTIPLIERS
CANCELLATIONS AND RETURNS Except as noted, all prices in this catalog are list prices.
200 and 575 volt 3 phase ratings utilize the same list price
Stock Product as 230/460 volt. NEMA short shaft (TS) utilize the same list
Stock product can be returned for credit as defined herein. price as standard shaft (T). Contact Marathon Electric for
Equipment must be in original packaging, unused in “as special bearing systems, including all requirements for
shipped” condition and is limited to products currently sleeve or roller bearing. For your discount and multiplier,
maintained in stock inventory. The quantity returned contact your local Marathon Electric sales representative or
cannot exceed Marathon Electric’s normal stock quantity local Marathon Electric Distributor.
level. All motors returned must have date codes no older
than 18 months from date of manufacture. The minimum MODIFICATION/ACCESSORIES
restocking charge is 15% of the original net purchase price. See the Modification/Accessories Sections for more
Modified and build to order motors cannot be returned for information on modifications to create special motor
credit. Return freight charges are the responsibility of the variations.
customer returning the motor for credit. No returns will be
accepted without prior authorization.
SB300 – Prices and Specifications are subject to change without notice. 7
General Information
GENERAL INFORMATION
STOCK, NON-STOCK AND BUILD UP MODELS STORAGE PROCEDURES
Standard motors listed in this catalog, as indicated with a In the event that long-term storage of motors is required,
check mark (�) next to the catalog number, are normally Marathon Electric recommends the following precautions
in stock. There is no minimum order quantity or minimum and procedures. This information is also contained in
billing charge associated with stock motors, unless stated “Installation, Operation and Maintenance Instructions”
otherwise in your quotation or agreement with Marathon (SB181).
Electric.
A. Keep motors clean
Production of non-stock catalog models and all build-up 1. Store indoors
models is subject to minimum order quantities or setup 2. Keep covered to eliminate airborne dust
charges listed below. and dirt.
3. Cover openings for ventilation, conduit
48-140 Frame = 25 piece minimum connections, etc., to prevent entry of rodents,
180-210 Frames = 5 piece minimum or $200 set-up/ snakes, birds and insects.
model
250-320 Frames = 5 piece minimum or $300 set-up/ B. Keep motors dry
model 1. Store in a dry area indoors
2. Temperature swings should be minimal to
Build-up motors must be thoroughly described at time of prevent condensation.
order, and/or associated with a formal quotation issued 3. Space heaters are recommended to prevent
by Marathon Electric. Inclusion of product features for condensation.
similar motors documented in this catalog should not be 4. Treat unpainted flanges, shafts and fittings
assumed. with a rust inhibitor.
5. Check insulation resistance before putting
SERVICE motor into service.
For service on any Marathon Electric motor, contact your
nearest Marathon Electric Authorized Service Station. C. Keep bearings lubricated
For a complete listing of all domestic and foreign service 1. Once per month, rotate shaft several turns to
stations, refer to www.marathonelectric.com. distribute grease in bearings.
2. If unit has been stored more than one
OPERATION AND MAINTENANCE year, add grease before start-up (refer to
For information on operation and maintenance, please lubrication procedure).
consult the manual or card shipped with your new
motor. Additional copies of “Installation, Operation DIMENSION DRAWINGS
& Maintenance Instructions” (brochure SB181) are See Marathon Electric’s website: www.marathonelectric.
available upon request or through our website, www. com or request certified drawings through your Marathon
marathonelectric.com. Electric Sales Engineer, Representative or local Marathon
Electric Distributor.
8 SB300 – Prices and Specifications are subject to change without notice.
General Information
GENERAL INFORMATION
WARRANTY
Marathon Electric warrants Fractional and Integral motors to be free from defects in materials and workmanship and to
conform to Marathon’s written specifications.
Warranty Warranty
Period from Period from
Date of Date of
Motor Type Installation* Manufacture*
Standard Warranty for any product not shown below 12 18
Medium Voltage 12 18
EPAct compliant (aluminum, steel & cast iron frame) 24 30
Blue Chip Severe Duty Explosion Proof 24 30
Blue Max®, Black Max®, & microMax™ Inverter Duty 36 42
All NEMA Premium® incl. ODP, Blue Chip, Severe Duty, Explosion Proof, etc. 36 42
U-Frame Automotive Duty 60 66
Blue Chip IEEE-841 60 66
* Warranty period shown is in months, and is valid for whichever period expires first.
Note: Brake discs are considered a normal maintenance item and are not covered under warranty.
For more information, on Marathon Electric’s warranty policy, refer to the “Terms and Conditions of Sale” (MPN411) in the back
of this catalog.
SUBMITTAL DATA
Mechanical and electrical submittal data is available on SUBMITTAL CHARGE SCHEDULE
many stock catalog motors through our website TYPE ELEMENTS NET/EA
Nameplate data
www.marathonelectric.com by following the three steps Motor characteristics
listed on the next page. All other submittal data is available BASIC (.PDF Performance data No-Charge
format) Outline drawing
upon request when accompanied by a purchase order for
External connection diagram
the specified motor, subject to the following additional Add for .dxf or .dwg format $25
charges All “BASIC” elements, tailored to
BASIC-PLUS specific order.
$75
(.pdf format)
“Cut sheets” of installed accessories
Add for .dxf or .dwg format $25
Speed/Torque curve $50
Torque capability curve $50
ADDITIONAL Commercial (end of line) test results (not
$50
ITEMS available for West Plains motors)*
(.pdf formats) Certificate of conformance $100
Thermal damage curve (48-326T frame) $500 + cost of
additional motor
Thermal damage curve (364T-6805 frame) $1500 +cost of
additional motor
* Does not imply retesting
SB300 – Prices and Specifications are subject to change without notice. 9
General Information
GENERAL INFORMATION
1. From our homepage, click on the Motors link.
From the Motors page, enter in the Marathon
Catalog number or Model number.
Then click on Model number in results window.
(Note: If you already have a Marathon Electric motor and
are looking for the performance data, make sure the model
number off the nameplate is what you use for your search.
Ex. 056H17T5301).
2. The Motor Model Details page will appear. You will be
able to print dimensional drawings and connection diagrams
in PDF format for the motors. Under the Technical Data
section, click on the link, Certification Data Sheet.
3. Your results will look similar to the example shown to
the right for Marathon’s 1/2 HP, Black Max® motor, model
# 056H17T5301. It’s that easy!
10 SB300 – Prices and Specifications are subject to change without notice.
