Description
The Schneider Electric (Square D) XB4BD33 is a heavy-duty 3-position Hand/Off/Auto rotary selector switch engineered for pump control applications in commercial and industrial HVAC, hydronic, and mechanical systems. Part of the trusted Harmony XB4 series, this selector switch provides operators with intuitive manual, off, and automatic control modes — making it an essential component for pump panels, motor control centers, and boiler room applications.
Key Features
- 3-position Hand/Off/Auto (HOA) rotary selector switch
- Designed for pump control and motor circuit applications
- Part of Schneider Electric’s Harmony XB4 series
- Robust metal body construction for durability in demanding environments
- Spring-return or maintained position operation (per XB4 series design)
- Panel-mount design for easy integration into control enclosures and pump panels
- Compatible with standard 22mm cutout mounting
Application
Ideal for use in HVAC pump control panels, boiler rooms, chiller plants, and hydronic systems where operators need to select between manual (Hand), off, and automatic (Auto) pump operation. The Hand/Off/Auto configuration is the industry standard for pump motor control, allowing seamless integration with building automation systems and standalone pump controllers.
Why Choose the XB4BD33
- Schneider Electric / Square D brand reliability trusted by HVAC and industrial professionals
- Simplifies pump control panel wiring and operation
- Durable construction suited for commercial and light industrial environments
- Widely recognized HOA configuration compatible with most pump control schematics
- Easy field installation with standard 22mm panel cutout
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