Schneider Electric ZB5AS944 Push-button Switch 22mm Red

Product Description

The SCHNEIDER ELECTRIC ZB5AS944 is a 22 mm panel-mount push-button switch designed for industrial control applications. It features a red, round, extended mushroom-head actuator in plastic construction and supports both maintained (MA) and momentary (MO) operation modes, giving installers flexibility in control circuit design. Rated NEMA 4X and 13, this switch is built for environments where dust and water ingress protection are required. It carries UL 508 listing along with a broad set of international certifications, making it suitable for equipment that must meet multi-market compliance standards. Licensed electricians and industrial controls technicians are the typical installers.

This push-button switch is intended for use in industrial control panels, machine tool enclosures, and similar 22 mm standard-hole operator interface applications. Its NEMA 4X rating qualifies it for washdown and corrosive-environment enclosures, while the maintained and momentary dual-operation capability suits a wide range of start, stop, and emergency-function circuit configurations. The compact package dimension of 3 inches length makes it straightforward to install in standard 22 mm cutouts without modification.

Key Features

• 22 mm mounting hole diameter for compatibility with standard operator interface cutouts
• Extended mushroom-head actuator in red for high-visibility and positive-grip actuation
• Supports both maintained (MA) and momentary (MO) operation in a single unit
• NEMA 4X and NEMA 13 rated for dust-tight and washdown environments
• UL 508 listed with additional certifications including CSA, EN/IEC 60947-5-1, and EN/ISO 13850
• Plastic pushbutton construction, lightweight at 0.1 pounds

Compatibility

Designed as an OEM-style replacement or new-installation operator for 22 mm industrial control panel cutouts meeting standard IEC and NEMA mounting specifications.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements and the equipment manufacturer's wiring diagrams. De-energize and lock out the control panel before mounting or wiring the switch. Verify that the enclosure rating matches or exceeds the NEMA 4X rating of this device to maintain environmental protection. Do not exceed the electrical ratings specified on the switch body or in the product data sheet.