Schneider Electric ZB5AC2 Push-button Switch 22mm Momentary

Product Description

The SCHNEIDER ELECTRIC ZB5AC2 is a 22 mm push-button switch operator designed for industrial control panel applications. It features a round, extended mushroom-head actuator in black plastic with a momentary (MO) action, meaning the switch returns to its default state when released. The ZB5AC2 is nonilluminated and mounts through a standard 22 mm panel cutout. Built to a broad set of international standards including UL 508, CSA C22.2 No. 14, and EN/IEC 60947-5-1, this operator is rated for demanding service conditions, carrying NEMA 4X and NEMA 13 enclosure ratings for wet, dusty, and corrosive environments.

This push-button operator is suited for use in industrial control panels, motor starters, machine tool enclosures, and process control stations. The 22 mm mounting diameter is a widely adopted industry standard, making this actuator a straightforward fit-and-replace option in existing panel cutouts. It is typically installed by electricians and industrial maintenance technicians during new panel builds or operator replacement service. Its NEMA 4X rating makes it appropriate for wash-down and outdoor applications where moisture ingress is a concern.

Key Features

• 22 mm mounting hole diameter — standard industrial panel cutout size
• Momentary (MO) action — returns to default position on release
• Extended round mushroom-head actuator in black plastic
• Nonilluminated design — no lamp or LED module required
• NEMA 4X and NEMA 13 rated for wet, dusty, and corrosive environments
• Certified to UL 508, CSA C22.2 No. 14, EN/IEC 60947-5-1, and multiple additional international standards

Compatibility

Designed as an OEM-style 22 mm push-button operator replacement for industrial control panels and machinery using standard 22 mm panel cutouts.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the NEC and any applicable local codes. De-energize the control panel and verify absence of voltage before removing or installing any operator or contact block. The mushroom-head actuator threads or clips into the 22 mm panel cutout per the manufacturer assembly instructions — do not force or overtighten the mounting nut. Ensure the enclosure gasket seating is intact to maintain the NEMA 4X ingress protection rating after installation.