The Schneider Electric XB4FD21 is a Harmony XB4 series selector switch designed for flush mounting in industrial control panels. This metal-bodied switch features a black bezel and a Ø30mm diameter, suitable for standard panel cutouts. It operates with two maintained positions, offering a stay-put function for reliable state selection.

Technical details

• Series: Harmony XB4
• Actuator Type: Selector Switch
• Mounting Type: Flush Mounted
• Bezel Material: Metal
• Bezel Color: Black
• Bezel Diameter: Ø30mm
• Number of Positions: 2
• Actuator Action: Stay Put (maintained)
• Contact Configuration: 1 Normally Open (NO) contact

Applications & compatibility

This selector switch is commonly integrated into control systems for machinery requiring manual selection of operational modes or states. Applications include packaging equipment, material handling systems, and general industrial automation where clear and reliable operator input is essential. It is designed to interface with standard control circuits.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the XB4FD21 or contact our technical team for cross-reference assistance with compatible Harmony XB4 components.