Schneider Electric ZB5AT844 Push-button Switch 22mm

Product Description

The SCHNEIDER ELECTRIC ZB5AT844 is a 22 mm push-button switch featuring a red, round, extended mushroom-head operator with trigger action and a non-illuminated, off-state switch sequence. Built for industrial control panel applications, it uses a screw-clamp terminal for reliable wire termination and is constructed with a plastic operator body. The ZB5AT844 is shock-resistant and vibration-resistant, making it suited for demanding machine-control environments. Licensed electricians and control panel integrators install this switch as part of operator interface stations, motor control circuits, and emergency-function panels.

This switch fits 22 mm diameter mounting holes, which is the standard format across a wide range of industrial enclosures and operator interface panels. The trigger-action mechanism and mushroom-head profile make it a common choice for stop or off-function positions on machine control stations in both light manufacturing and heavy industrial settings. NEMA 4X and NEMA 13 ratings allow installation in washdown and oil-mist environments, extending its use to food processing, packaging, and other wet or contaminated locations.

Key Features

• 22 mm mounting hole diameter fits standard industrial panel cutouts
• Trigger-action mushroom-head operator in red for off or stop functions
• Non-illuminated design simplifies wiring and reduces component count
• Screw-clamp terminals provide secure, tool-assisted wire connections
• NEMA 4X and NEMA 13 rated for washdown and oil-mist environments
• Shock-resistant and vibration-resistant construction for machine-mounted installations

Compatibility

Designed as an OEM-style replacement for 22 mm push-button switch assemblies in industrial control panels and operator interface stations. Confirm mounting hole diameter and terminal type against existing panel specifications before installation.

Installation Notes

Installation should be performed by a licensed electrician following applicable NEC and local electrical codes. De-energize and lock out the control panel before removing or installing any operator device. Screw-clamp terminals require a small flathead screwdriver for wire insertion and clamping. Verify that the switch sequence and operator color coding comply with the machine-control wiring diagram and any applicable EN/IEC 60204-1 requirements before returning the panel to service.