Schneider Electric ZB4BL3 Push-button Switch 22mm Green

Product Description

The SCHNEIDER ELECTRIC ZB4BL3 is a 22 mm momentary push-button switch designed for industrial control panel applications. It features a round, extended straight-profile green metal button with no illumination. The momentary (MO) operation type means the switch activates only while held and returns to its default state upon release. Rated NEMA 4X and 13, this switch is built to resist dust, oil, and corrosive environments. It meets a broad set of international standards including UL 508, EN/IEC 60947-5-1, CSA C22.2 No. 14, and JIS C 4520, making it suitable for both domestic and export equipment builds. Electricians and controls technicians are the primary installers.

This push-button switch is used in industrial and commercial control panels, machine operator stations, and automation equipment where a momentary contact input is required. The 22 mm mounting hole diameter is a widely adopted standard in panel-mount hardware, fitting standard 22 mm cutouts found in enclosures and operator interface stations across a wide range of industries including manufacturing, process control, and marine applications. The green color convention typically designates start or safe-condition functions in panel wiring layouts.

Key Features

• 22 mm mounting hole diameter fits standard panel cutouts
• Momentary (MO) operation — activates on press, returns on release
• Round, extended straight-profile green metal button — nonilluminated
• NEMA 4X and 13 rated for oil-tight and corrosion-resistant service
• Certified to UL 508, CSA C22.2 No. 14, EN/IEC 60947-5-1, JIS C 4520, DNV, GL, RINA, LROS, and Bureau Veritas
• Metal push-button construction for durability in industrial environments

Compatibility

Designed as an OEM-style replacement or new-installation component for 22 mm push-button switch assemblies used in industrial control panels and operator stations.

Installation Notes

Installation is typically performed by a licensed electrician or qualified controls technician. De-energize the control panel and lock out or tag out all power sources before beginning work, in accordance with NFPA 70E and applicable local codes. The switch mounts through a 22 mm panel cutout and is secured from the rear with the included hardware. Verify contact block compatibility and torque all terminal connections to the contact block manufacturer specifications before restoring power.