Eaton PKZM0-6,3/NHI11 Motor-Protective Circuit Breaker with Integrated 1NO/1NC Aux Contact

The Eaton PKZM0-6,3/NHI11 is a motor-protective circuit breaker designed for manual motor starting and protection. It provides adjustable thermomagnetic protection for motors from 4 A to 6.3 A with screw-terminal connectivity. The compact form supports motor control and panel-building workflows where coordinated protection and switching are required.

- Thermomagnetic switching combines overload and short-circuit response in a single protective device.
- Adjustable overload current setting from 4 A to 6.3 A aligns protection to the connected motor load.
- Manual turn-button actuation enables local switching and reset behavior within the motor branch circuit.
- Fixed short-circuit release operates at approximately 15.5 x Iu to clear high-fault conditions.

- Rated operational voltage reaches up to 690 V with 50/60 Hz operation.
- Rated operational current is 6.3 A with AC-3e motor power ratings up to 4 kW at 690 V, 50 Hz.
- Screw connection supports panel wiring and top-hat rail mounting to IEC/EN 60715.
- Integrated auxiliary contact configuration adds 1 normally open and 1 normally closed contact for control signaling.

- Motor branch protection in industrial control panels.
- Manual motor starter and protective switching duties in machinery systems.
- Panel-building installations requiring compact motor protection with auxiliary signaling.