Schneider Electric ZB4BW16 Push-button Switch 22mm Momentary

Product Description

The SCHNEIDER ELECTRIC ZB4BW16 is a 22 mm momentary push-button switch operator designed for industrial control panel applications. It features a round, extended straight-profile blue metal button with no illumination. The operator is rated for NEMA 4X and NEMA 13 environments, making it suitable for wet, dusty, and corrosion-exposed locations. Licensed electricians and panel builders install this type of component during control panel assembly or field replacement of worn push-button operators. It meets a broad set of international certifications including UL 508, CSA C22.2 No. 14, and EN/IEC 60947-5-1.

This switch operator is used in industrial and commercial control panel applications where a momentary non-illuminated push-button is required. Typical installations include machine start/stop stations, conveyor controls, pump panels, and general-purpose operator interface enclosures. The 22 mm mounting hole diameter is a standard industrial form factor widely used across panel-mount operator assemblies. The NEMA 4X rating suits both indoor and outdoor enclosures where washdown or corrosive conditions are present.

Key Features

• 22 mm mounting hole diameter — standard industrial panel cutout size
• Momentary (MO) operation — returns to default position when released
• Round, extended straight-profile blue metal button — nonilluminated
• NEMA 4X and NEMA 13 rated — suitable for wet and corrosive environments
• UL Listed and CSA certified; also meets EN/IEC 60947-5-1, DNV, GL, RINA, and JIS C 4520
• Metal operator construction for durability in industrial service

Compatibility

Designed as an OEM-style replacement or new-installation momentary push-button operator for 22 mm industrial control panel assemblies requiring a nonilluminated blue round operator.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements and the enclosure manufacturer guidelines. De-energize and lock out the control panel before removing or installing any push-button operator. Verify the mounting hole diameter matches the 22 mm specification before installation. Do not exceed the contact block ratings specified for any mating contact blocks used with this operator.