Description

The ABB MCBH-01 is a rear-mount modular contact block providing one normally closed (N.C.) contact for use with ABB M2 series modular pushbutton components, as part of the MCBH family of higher-stack contact blocks. It is compatible with the MCBH-00 holder module and other MCBH contact blocks, enabling multi-contact pushbutton assemblies to be built up for complex control circuit requirements. Rated to IEC 60947-5-1, the MCBH-01 provides reliable N.C. contact switching for stop commands, safety interlocks, fault detection, and door interlock applications in industrial control panels and machine operator interfaces.

The MCBH-01 features screw terminals for secure conductor attachment and is rated for utilisation categories AC-15 and DC-13 in accordance with IEC 60947-5-1. Its N.C. contact configuration makes it the appropriate choice for control circuit functions that require the contact to be closed in the normal de-energised state and open when the pushbutton is pressed or the actuator is operated. This characteristic is essential for stop commands, emergency inhibit functions, and safety category circuit components.

Compatible with ABB M2 pushbutton actuators and the MCBH modular contact block system, the MCBH-01 supports the construction of multi-output operator devices within the compact footprint of the M2 system. Panel builders, machine builders, and control systems engineers use the MCBH series to build sophisticated operator interface assemblies with the precise contact complement required by their control circuit designs, without the need for auxiliary relays or additional panel real estate. The MCBH-01 is an essential component in ABB’s modular operator system for industrial and commercial control panel applications.