Use this auxiliary contact from ABB for contact position indication in miniature circuit breakers. This device is designed to monitor the circuit and ensure that the breaker can't be reset until the fault that caused a trip is cleared. It's mounted on the right side of the protective component and uses the same input energy to operate. With a minimal power loss of 0.5W, this unit is energy-efficient and dissipates low heat. Installation is easy and tool-less as it's mounted directly onto the DIN rail. You'll find auxiliary contacts like this one used with MCBs in industrial and commercial applications.

• Compact dimensions of 85 (height) x 8.8 (width) x 69mm (depth) for space efficiency in small enclosures
• Light weight of 43g, so it's easy to handle and won't strain the DIN rail
• Screw terminals for easy and time-efficient installation

• Industrial air conditioning systems
• Low-pressure compressors

The main contacts of a circuit breaker are designed to carry high voltages and currents, while auxiliary contacts can only handle low voltages and currents.

ABB Accessories

These contacts can not be used with type ESB20 installation contactors, only higher types e.g. ESB24