Square D XB4BS8445 Mushroom Head Pushbutton Switch Red

Product Description

The SQUARE D XB4BS8445 is a heavy-duty pushbutton switch operator designed for industrial control panel applications. This unit features an extended mushroom head profile in red with a round shape and a metal bezel construction. It mounts through a 22 mm (0.87 inch) diameter hole and uses a screw clamp terminal type. The switch supports both maintained (MA) and momentary (MO) operation modes, giving panel builders flexibility in a single part. It is non-illuminated and rated for NEMA 4X and 13 environments, making it suitable for harsh or washdown service locations. Licensed electricians and industrial control panel integrators are the primary installers.

The XB4BS8445 is built for industrial and commercial control panel installations where shock and vibration resistance are required. Typical applications include machine control stations, operator interface panels, and equipment requiring a clearly visible emergency-stop-style actuator or selector. The extended mushroom head profile makes the actuator easy to identify and actuate quickly. Both maintained and momentary contact functions are available, accommodating a wide range of control logic requirements in manufacturing, marine, and process environments.

Key Features

• Extended mushroom head, red, round operator for high-visibility panel identification
• Dual operation modes: maintained (MA) and momentary (MO)
• Metal bezel construction with shock-resistant and vibration-resistant ratings
• NEMA 4X and 13 rated for wet, dusty, and corrosive environments
• Screw clamp terminal type for secure, tool-accessible wiring connections
• NO/NC contact configuration for flexible control circuit integration

Compatibility

Designed as an OEM-style replacement or new-installation operator for 22 mm pushbutton switch assemblies in industrial control panels and machine operator stations.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements and applicable local codes. De-energize and lock out the control panel before removing or installing any pushbutton operator. Confirm the mounting hole diameter matches 22 mm before installation. Screw clamp terminals should be tightened with an appropriate flat-blade screwdriver to the terminal manufacturer specifications listed in the product datasheet.