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How To Read a Marathon Model Number of the Nameplate

EXAMPLE 

 

 

1. MODEL - The ID number 

2. DATE CODE - The month and year manufactured 

3. MTG. - Mounting 

4. FRAME - The size & mounting 

5. PART NO. - Customer part number 

6. SER. - Serial number 

7. TYPE - Electrical type 

8. DES. - Code by NEMA® or IEC 

9. PH - Electrical phase usually 1 or 3 

10. INS CL - Insulation class 

11. DUTY - Time rating under load 

12. MAX AMB - The allowable surrounding air temperature 

13. ENCL - Enclosure (i.e. TEFC) 

14. RISE - The temperature rise over ambient expressed in degrees Celsius when the motor operates at nameplated HP or KW 

15. IP - Inherent protection of the enclosure to solids and liquids as defined by IEC 34-5 

16. IC - Inherent cooling

17. CODE - NEMA® locked-rotor KVA 

18. MTH/YR MFG. - Month and year motor was manufactured 

19. WT/LBS - Motor weight in pounds 

20. WT/KG - Motor weight in kilograms 

21. HZ - Input frequency of the power supply, usually 50 or 60 HZ

22. VOLTS - Voltage rating of the motor at the operating frequency 

23. HP - Rated horsepower the motor will produce

24. KW - Rated output in watts

25. F.L. AMPS - The rated load current expressed in amps at nameplated horsepower with nameplate voltage and frequency