The Schneider Electric ZB4BG4TQ is a key selector switch head designed for use within the Harmony XB4 series of control and signaling units. This component is engineered for panel mounting and provides a secure, key-operated interface for controlling machinery and automation processes. It is commonly integrated into control panels for manufacturing equipment, particularly where specific operational states or access levels need to be managed.

Technical details

• Series: Harmony XB4
• Product Type: Key Selector Switch Head
• Actuator Type: Key operated
• Number of Positions: 2-position (maintained)
• Key Type: Standard key
• Contact Configuration: Requires separate contact blocks (not included) to define electrical function.
• Mounting Type: Panel mount
• Actuator Material: Metal

Applications & compatibility

This key selector switch head is suitable for applications requiring secure manual control and access restriction. It is frequently deployed in control stations for packaging machinery, material handling systems, and general industrial automation where distinct operational modes or safety interlocks are managed via a physical key. Compatibility is with the Schneider Electric Harmony XB4 range of accessories and contact blocks.

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 ZB4BG4TQ or contact our technical team for cross-reference assistance with compatible Harmony XB4 components.