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Pertinent NEMA Numbers

  1. 1
    MASTER ELEMENT
  2. 5
    STOPPING DEVICE
  3. 9
    REVERSING DEVICE
  4. 12
    OVER-SPEED DEVICE
  5. 13
    SYNCHRONOUS-SPEED DEVICE
  6. 14
    UNDERSPEED DEVICE
  7. 15
    SPEED OR FREQUENCY MATCHING DEVICE
  8. 17
    SHUNTING OR DISCHARGE SWITCH
  9. 21
    DISTANCE RELAY
  10. 24
    VOLTZ PER HERTZ RELAY
  11. 25
    SYNCHRONIZING DEVICE
  12. 27
    UNDERVOLTAGE RELAY
  13. 29
    ISOLATING CONTACTOR
  14. 30
    ANNUNCIATOR RELAY
  15. 32
    DIRECTIONAL POWER RELAY
  16. 33
    POSITION SWITCH
  17. 34
    MASTER SEQUENCE DEVICE
  18. 38
    BEARING PROTECTIVE DEVICE
  19. 40
    FIELD RELAY
  20. 41
    FIELD CIRCUIT BREAKER
  21. 43
    MANUAL TRANSFER OR SELECTOR DEVICE
  22. 48
    INCOMPLETE SEQUENCE RELAY
  23. 50
    INSTANTANEOUS OVERCURRENT RELAY
  24. 51
    AC TIME OVERCURRENT RELAY
  25. 59
    OVERVOLTAGE RELAY
  26. 63
    PRESSURE SWITCH
  27. 65
    GOVERNOR
  28. 67
    AC TIME DIRECTIONAL OVERCURRENT RELAY
  29. 70
    RHEOSTAT
  30. 74
    ALARM RELAY
  31. 79
    AC RECLOSING RELAY
  32. 81
    FREQUENCY RELAY
  33. 85
    CARRIER OR PILOT-WIRE RECEIVER RELAY
  34. 86
    LOCKOUT RELAY
  35. 87
    DIFFERENTIAL PROTECTIVE RELAY
  36. 88
    AUXILIARY MOTOR OR MOTOR GENERATOR
  37. 90
    REGULATING DEVICE
Author
sjbarnes85
ID
167417
Card Set
Pertinent NEMA Numbers
Description
Need-to-know NEMA numers
Updated

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