CHINT · Definite purpose contactor
Product overview
CHINT NCK3 contactors are used for HVACR switching under AC-8a/AC-1 duties. Select the published current specification, main poles and an available coil combination; full-load and locked-rotor ratings must be checked at the actual voltage.
Technical selection summary
| Series | NCK3 |
|---|---|
| Published current specifications | 20A, 25A, 30A, 32A, 40A, 50A, 60A, 75A, 90A |
| Duty | AC-8a/AC-1; model current codes are not a universal FLA value at every voltage |
| Main contact choices | 1P, 2P, 3P |
| Coil selection | Available choices follow the exact current/contact ordering entries |
| Complete order | Specify auxiliary contacts, frequency and complete manufacturer code |
| Single-/three-phase motor reference | NCK3 manufacturer tables distinguish single-phase and three-phase horsepower for specific pole, current-code and voltage combinations. Use the corresponding HP, FLA and LRA row rather than assigning one phase or horsepower rating to the whole range |
Confirm the full supplied model, operating conditions and destination-market requirements with your quotation.
Typical applications
- Air conditioner condensing units and chillers
- Heat pump systems and refrigeration compressors
- Commercial electric heating and fan controls
Specify your enquiry
- Required HVACR current and horsepower at the operating voltage
- Main contact arrangement (1P, 2P or 3P)
- Coil voltage, frequency and terminal arrangement
Download CHINT NCK3 catalogue (PDF)
