This signalling contact starter kit from Rockwell Automation notifies you instantly when a current overload has caused your MPCB to trip. Simply attach it to the right side of an MPCB and if an electrical surge trips it, the 2NC contacts on the signalling contact will open, setting off an alarm. As some fault conditions can cause damage even after power is cut, the unit ensures you can address issues before they cause a problem. This starter kit is ideal for use with air handling units, industrial conveyor belts and lift motors.

• Compact 9mm width for use in busy setups
• 600V maximum voltage, suitable for high-power applications
• Compatible with single-phase or three-phase applications for flexibility

• IEC 60947-4-1
• IEC 60947-2
• UL 60947-4-1
• CSA C22.2 No.60947-4-1

An MCB, or miniature circuit breaker, and an MPCB, or motor protection circuit breaker, are both designed to prevent damage due to electrical overload. The main difference is an MPCB is designed specifically to protect circuits driving electric motors, while an MCB can be used in a wider range of applications.