Allen-Bradley 800T-T4T8 Switch, Momentary, Normally Open | AmpState

Meet the Allen-Bradley 800T-T4T8 switch—a compact, momentary, normally open control device designed for dependable manual control and precise switching in industrial panels. Chosen often for retrofit work and maintenance planning, this exact part number helps keep your spare inventory and field replacements consistent.

• Manufacturer: Allen-Bradley
• Part number: 800T-T4T8
• Product type: Switch
• Actuation: Momentary (press-to-close), Normally Open
• Key benefit: PN consistency for retrofit and maintenance programs
• Availability: Available from AmpState

Why this matters: when you're retrofitting legacy equipment or planning maintenance downtime, having the exact part number—800T-T4T8—ensures compatibility with mounting footprints, wiring harness interfaces, and control panel layouts. The momentary action makes it ideal for start/stop type control circuits or any application that requires a temporary closing contact to energize a function, then return to the open state after release.

Ideal use cases

• Retrofit projects where equipment expects the 800T-T4T8 form factor and contact behavior, enabling seamless part swaps without redesigning panels.
• Legacy control panels undergoing modernization, preserving wiring compatibility and shutdown safety sequences.
• Maintenance planning where keeping a single, consistent part number simplifies stocking, ordering, and service workflows.

How it integrates into your control system

The 800T-T4T8 provides a straightforward momentary, normally open contact suitable for manual control and switching functions. When pressed, it closes the circuit to actuate a function; when released, the contact reopens, returning the circuit to its idle state. This predictable behavior supports reliable start/stop logic and quick testing of control loops without lasting engagement.

Support and compatibility

If you need help matching a part number or confirming compatibility with your equipment, AmpState is ready to assist. Message us and we’ll help you confirm fit.