MCB-01B Contact block 1NO, Reverse contacts 1SFA611610R2010

Signaling contact block MCB-01B – a reliable element of electrical installation

The MCB-01B signaling contact block is a component designed to expand circuit breakers, providing additional signaling functions. It allows monitoring of the circuit status and remote control, which is particularly useful in automation systems and remote reading. The design of the contact blocks allows for easy top mounting, which speeds up installation work and minimizes downtime.

Construction features and application

The MCB-01B block is equipped with one normally open contact (1NO) which is activated when the circuit breaker trips. The lack of normally closed and changeover contacts makes this block ideal for simple signaling applications where only one contact point is needed to indicate the circuit status. Screw connection ensures a secure and durable electrical connection, minimizing the risk of errors and failures. The rated operating current of 6A for AC-15 at 230V guarantees reliable operation in typical control circuits.

• Status signaling: The contact block informs about the tripping of the circuit breaker, allowing for a quick response in the event of a failure.
• Functionality expansion: Allows adding signaling functions to existing circuit breakers without the need to replace the entire device.
• Easy installation: Top mounting simplifies installation and servicing.
• Secure connection: Screw connection provides a stable and reliable electrical connection.
• Versatility: Compatible with a wide range of ABB circuit breakers.

Operating parameters and compatibility

The MCB-01B contact block has been designed for professional electrical installations where reliability and safety are a priority. The mounting method "Other" means versatility in the context of the specific model of circuit breaker for which it is intended - mounting is done from the top, which is standard for this type of component. The lack of a holder indicates direct mounting to the circuit breaker. This block works perfectly in applications requiring circuit status monitoring, such as:

• Building automation systems
• Industrial installations
• Data centers
• Alarm and fire systems
• Remote energy consumption monitoring