ABB PSCBH-2 Pushbutton Switch Contact Block Module

ABB PSCBH-2 Pushbutton Switch Contact Block Module is a two-slot contact block holder designed for ABB’s 22 mm modular pushbutton system. It accepts two normally closed (2NC) contact blocks, enabling dual-channel control from a single pushbutton operator, and is intended for use with ABB’s MCBH-02 style contact blocks. The CB HOLDER is suitable for front- or surface-mount installation on panel enclosures, facilitating compact, modular assembly of pushbutton configurations. Its compact footprint measures roughly 30 mm in height, 48 mm in width, and 36 mm in depth, allowing easy integration alongside other 22 mm pilot devices in control panels. The ABB part number for the holder is 1SFA899312R1002, with PSCBH-2 denoting the two-block configuration. In typical automation applications, this module supports dual NC switching paths for machine control, interlocks, or sequencing logic, enabling reliable, space-efficient control solutions in industrial environments.