Contactors are most commonly used to switch motor loads in applications where running overcurrent protection is either not required or is provided separately. Contactors consist of a magnetically actuated switch which can be remotely operated by a pushbutton station or pilot device such as a proximity switch, limit switch, float switch, auxiliary contacts, and so on.
Reversing contactors are used primarily for reversing single- or three-phase motors in applications where running overcurrent protection is either not required or is provided separately. They consist of two contactors mechanically and electrically interlocked to prevent line shorts and energization of both contactors simultaneously.
One NO-NC side mounted interlock supplied as standard on each contactor for Sizes 00–8
NEMA Size 00 CN55AN3AB
NEMA Size 0 CN15BN3AB
NEMA Size 3 CN15KN3A
| NEMA Size | Continuous Ampere Rating |
Maximum UL Horsepower(2) Three-Phase |
Non-Reversing | Reversing | |
|---|---|---|---|---|---|
| 230V | 480V | Part Number | Part Number | ||
| 00 | 9 | 1 | 2 | CN15AN3AB | CN55AN3AB |
| 0 | 18 | 3 | 5 | CN15BN3AB | CN55BN3AB |
| 1 | 27 | 3 | 10 | CN15DN3AB | CN55DN3AB |
| 2 | 45 | 7.5 | 25 | CN15GN3AB | CN55GN3AB |
| 3 | 90 | - | 50 | CN15KN3A | CN55KN3A |
| 4 | 135 | - | 100 | CN15NN3A | CN55NN3A |
| 5 | 270 | - | 200 | CN15SN3A | CN55SN3A |
| 6 | 540 | - | 400 | CN15TN3AB | CN55TN3AB |
| 7 | 810 | - | 600 | CN15UN3A | CN55UN3A |
| 8(2) | 1215 | - | 900 | CN15VN3A | CN55VN3A |
Contactor coils listed in this section also have a 50 Hz rating as shown in the Coil Voltage Code section. Select required contactor by Part number and replace the magnet coil alpha designation in the part number (A) with the proper Coil Voltage Code.
For Sizes 00–2, the magnet coil alpha designation will be the next to the last digit of the listed Part number.
EXAMPLE: For a 380V, 50 Hz coil, change CN15AN3_B to CN15AN3LB. For all other sizes, the magnet coil alpha designation will be the last digit of the listed Part number.
| Coil Volts and Hertz | Code Suffix | Coil Volts and Hertz | Code Suffix | |
|---|---|---|---|---|
| 120/60 or 110/50 | A | 380-415/50 | L | |
| 240/60 or 220/50 | B | 550/50 | N | |
| 480/60 or 440/50 | C | 24/60, 24/50 | T | |
| 600/60 or 550/50 | D | 24/50 | U | |
| 208/60 | E | 32/50 | V | |
| 277/60 | H | 48/60 | W | |
| 208-240/60 | J | 48/50 | Y | |
| 240/50 | K | 48/50 | Y |
| NEMA Size | 00 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|
| Horsepower | 1.5 | 5 | 10 | 25 | 50 | 75 | 150 | 300 | 600 | 900 |
(1) Maximum horsepower rating of starters for 380V 50 Hz applications:
(2) Common control. For separate 120V control, insert letter D in 7th position of listed Part number. Example:CN15VND3C.
(3) NEMA Sizes 00 and 0 only.
(4) NEMA Sizes 00 and 0 only. Sizes 1–8 are 24/60 only.
NEMA Size 2 Five-Pole Contactor CN15GN5AB
| NEMA Size | Continuous Ampere Rating |
Maximum UL Horsepower (2) Three-Phase |
Two-Pole Non-Reversing |
Four-Pole Non-Reversing |
Five-Pole Non-Reversing |
|
|---|---|---|---|---|---|---|
| 230V | 480V | |||||
| 00 | 9 | 1 | 2 | CN15AN2AB | CN15AN4AB | ~ |
| 0 | 18 | 2 | 5 | CN15BN2AB | ~ | ~ |
| 1 | 27 | 3 | 10 | CN15DN2AB | CN15DN4AB | CN15DN5AB |
| 2 | 45 | 7.5 | 25 | CN15GN2AB | CN15GN4AB | CN15GN5AB |
| 3 | 90 | - | 50 | CN15KN2A | ~ | ~ |
| 4 | 135 | - | 100 | CN15NN2A | ~ | ~ |
| 5 | 270 | - | 200 | CN15SN2A | ~ | ~ |
| 6 | 540 | - | 400 | CN15TN2AB | ~ | ~ |
Contactor coils listed in this section also have a 50 Hz rating as shown in the Coil Voltage Code section. Select required contactor by Part number and replace the magnet coil alpha designation in the part number (A) with the proper Coil Voltage Code.
For Sizes 00–2, the magnet coil alpha designation will be the next to the last digit of the listed Part number.
EXAMPLE: For a 380V, 50 Hz coil, change CN15AN3_B to CN15AN3LB. For all other sizes, the magnet coil alpha designation will be the last digit of the listed Part number.
| Coil Volts and Hertz | Code Suffix | Coil Volts and Hertz | Code Suffix | |
|---|---|---|---|---|
| 120/60 or 110/50 | A | 380-415/50 | L | |
| 240/60 or 220/50 | B | 550/50 | N | |
| 480/60 or 440/50 | C | 24/60, 24/50 | T | |
| 600/60 or 550/50 | D | 24/50 | U | |
| 208/60 | E | 32/50 | V | |
| 277/60 | H | 48/60 | W | |
| 208-240/60 | J | 48/50 | Y | |
| 240/50 | K | 48/50 | Y |
| NEMA Size | 00 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|
| Horsepower | 1.5 | 5 | 10 | 25 | 50 | 75 | 150 | 300 | 600 | 900 |
(1) Maximum horsepower rating of starters for 380V 50 Hz applications:
(2) Common control. For separate 120V control, insert letter D in 7th position of listed Part number. Example:CN15VND3C.
(3) NEMA Sizes 00 and 0 only.
(4) NEMA Sizes 00 and 0 only. Sizes 1–8 are 24/60 only.