Schneider Electric ZB4BA333 Push-button Switch 22mm

Product Description

The SCHNEIDER ELECTRIC ZB4BA333 is a momentary push-button switch designed for industrial control panel applications. It features a flush-style, round green metal operator and fits a 22 mm mounting hole. The non-illuminated, momentary (MO) action means the switch activates only while depressed and returns to the off state on release. Rated NEMA 4X and NEMA 13, it is built to withstand dust, oil, and wash-down environments. Licensed electricians and control panel builders install this switch in motor control centers, machine control panels, and similar industrial equipment.

This switch is suited for both light industrial and heavy industrial control applications requiring a 22 mm panel cutout. Its NEMA 4X rating makes it appropriate for wet or corrosive locations, and its NEMA 13 rating covers oil-tight indoor installations. Typical uses include start/stop stations, jog controls, and operator interface panels on manufacturing equipment and process control systems. The metal construction supports durability in demanding production environments.

Key Features

• 22 mm mounting hole diameter fits standard industrial panel cutouts
• Momentary (MO) operation — contact active only while button is pressed
• Flush, round green metal operator — non-illuminated
• NEMA 4X and NEMA 13 rated for wet, wash-down, and oil-tight environments
• Meets multiple international standards including UL 508, CSA C22.2 No. 14, EN/IEC 60947-5-1, and JIS C 4520
• Metal push-button construction for extended service life in industrial settings

Compatibility

Designed as an OEM-style replacement or new-installation push-button operator for 22 mm industrial control panel assemblies accepting flush round operators.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the NEC and applicable local codes. De-energize and lock out the control panel before removing or installing any push-button operator. Verify the panel cutout is 22 mm and that the enclosure rating is compatible with the installation environment before mounting. Do not exceed the rated voltage, current, or environmental conditions listed in the manufacturer documentation.