Auxiliary contact block 2NO 1NC NHI21-PKZ0 072894

Auxiliary contact block – a reliable extension of circuit breaker functionality

The NHI21-PKZ0 2Z 1R auxiliary contact block is a key element for expanding Eaton PKZ(M)0 series circuit breakers, allowing for the addition of extra control and signaling circuits. This enables integration of auxiliary functions directly into the circuit breaker, simplifying the installation design and increasing its reliability. Side mounting provides convenient installation and minimizes space occupied in the switchboard.

Versatility and compatibility

This contact block is designed for a wide range of applications. Thanks to screw connections, installation is simple and safe, and the connections are characterized by high durability. Compatibility with PKZM0 and PKZM01 circuit breakers allows for the use of common accessories, reducing storage costs and facilitating servicing. This block finds application in both industrial installations and commercial and residential buildings.

Specifications and benefits for professionals

The NHI21-PKZ0 contact block offers a configuration of 2 normally closed contacts (2Z) and 1 normally open contact (1R), providing flexibility in selecting the appropriate configuration for specific needs. The rated operating current Ie for AC-15 at 230 V is 3.5 A, ensuring safe operation in typical control circuits. Top mounting facilitates access to the terminals during installation and maintenance. Additionally, the possibility of using IP65 enclosures with an emergency mushroom head or membrane increases safety in harsh environmental conditions. High short-circuit breaking capacity (up to 50kA) guarantees protection of the installation in the event of a failure.