CHINT · Control and Protective Switching Device
Product overview
NKB1 combines circuit switching, contactor control and coordinated protection in a modular CPS assembly. Choose the frame, rated operational current, load type and trip unit together. Optional leakage, fire-fighting and communication functions require their own versions.
Technical selection summary
| Series | NKB1 |
|---|---|
| Current coverage | 1–125 A, using 45 A and 125 A frames |
| Main circuit | 3 poles; up to 690 V AC, 50/60 Hz according to version |
| Load coding | M motor protection or L distribution protection |
| Control supply | M: AC 230 V; Q: AC 400 V |
| Protection options | Basic, fire-fighting, leakage and communication versions; confirm exact suffix |
| Standard | IEC 60947-6-2 |
Select the complete manufacturer code and confirm the supplied configuration with your quotation.
Typical applications
- Motor control and protection assemblies
- Building equipment control
- Coordinated distribution switching
Specify your enquiry
- Frame, current and motor/distribution duty
- Control supply and required protection options
- Complete code, fault level and quantity
Download CHINT NKB1 manufacturer technical document (PDF)
