MCB-02-Contact block 2NC 1SFA611610R1020

MCB-02 Contact Block – Additional contact for ABB circuit breakers

The MCB-02 contact block is a module that expands the functionality of ABB S200 series circuit breakers. It allows you to add two auxiliary contacts (2NC – two normally closed) to an existing circuit breaker, which is particularly useful in control and signaling systems. Installation is simple and takes place from above, making installation and servicing easier.

Functionality and application

The MCB-02 block expands the signaling capabilities of the circuit breaker, allowing you to monitor its status. The two normally closed (NC) contact outputs can be used for:

• Circuit breaker trip signaling – information about the circuit being disconnected due to overload or short circuit.
• Controlling other devices – e.g., triggering an alarm or disconnecting the power supply to other installation elements in the event of a failure.
• Integration with building automation systems (BMS) or industrial automation (SCADA).

Screw connection ensures reliable and durable electrical connections, and the front mounting method guarantees stability and easy integration with the existing installation. The contact block is designed to operate with a rated current of 6A for AC-15 at a voltage of 230V, making it suitable for many applications in control and auxiliary circuits.

Installation and compatibility

The MCB-02 is dedicated for mounting on ABB S200 series circuit breakers. Installation is done from above, minimizing the need to interfere with the existing electrical installation. Remember to follow appropriate safety precautions when working with energized equipment. The lack of a frame eliminates the need for additional mounting elements, simplifying the installation process.