Schneider Electric ZB4BH43 Push-button Switch 22 Mm

Product Description

The SCHNEIDER ELECTRIC ZB4BH43 is an illuminated, maintained-action push-button switch designed for industrial control panel applications. The operator features a red, round, extended (straight) metal button with a 22 mm mounting hole diameter and an integrated LED lamp. Maintained-action (MA) operation means the switch holds its position on actuation and returns only when actuated again, making it suitable for latching control functions. The metal construction and NEMA 4X and 13 ratings provide resistance to dust, water, and corrosive environments. Licensed trades and panel builders install this switch in machine control, process automation, and electrical enclosure applications.

This switch is suited for use in both commercial and industrial control systems where a durable, illuminated operator is required. The 22 mm mounting diameter is a widely adopted industry standard, and the extended round button profile provides clear tactile and visual feedback for operators. Typical installation scenarios include motor starter panels, conveyor control stations, pump control enclosures, and general-purpose industrial machinery. The LED illumination supports status indication at the operator level. NEMA 4X and 13 ratings make this switch appropriate for washdown, outdoor, or moderately corrosive environments.

Key Features

• Maintained (MA) operation holds switch state after actuation
• Illuminated with integrated LED lamp for visual status indication
• Red, round, extended (straight) button profile for clear operator identification
• Metal push-button construction for durability in industrial environments
• 22 mm mounting hole diameter compatible with standard industrial panel cutouts
• NEMA 4X and 13 rated for dust-tight, watertight, and corrosion-resistant installations
• 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 replacement or new-installation operator for 22 mm industrial push-button control stations accepting maintained-action, illuminated, extended round metal 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 mounting or wiring the switch. The 22 mm panel cutout should be clean and deburred before inserting the operator body. Do not exceed the rated voltage or current for the contact block paired with this operator.