Schneider Electric ZB4BS55 Push-button Switch 22mm

Product Description

The SCHNEIDER ELECTRIC ZB4BS55 is a maintained-action push-button switch designed for industrial control panel applications. It features a round, yellow extended mushroom-head operator with a non-illuminated, metal construction and mounts through a 22 mm panel cutout. The maintained (MA) operation type means the switch holds its position after each actuation rather than snapping back, making it suited for on/off control functions that require a latched state. Licensed electricians and panel builders install this switch in control enclosures where a visible, tactile operator is needed for machine or process control circuits.

The ZB4BS55 is used in industrial and commercial control panel builds where a 22 mm maintained push-button is required. Its NEMA 4X and NEMA 13 ratings make it appropriate for environments exposed to dust, oil, and washdown conditions. The yellow color provides visual identification for operator interface panels in manufacturing, process control, and machine tool applications. This switch is intended for professional panel fabrication and field service by licensed electricians working to NEC and applicable equipment standards.

Key Features

• Maintained (MA) operation holds switch position after actuation for latched on/off control
• Extended mushroom-head operator provides a large, easy-to-actuate contact surface
• Yellow round operator enables quick visual identification on control panels
• Metal push-button construction for durability in industrial environments
• NEMA 4X and NEMA 13 rated for resistance to dust, oil mist, and washdown
• Meets multiple international standards including UL 508, CSA C22.2 No. 14, and EN/IEC 60947-5-1

Compatibility

Designed as an OEM-style maintained push-button operator for 22 mm industrial control panel assemblies. No specific compatible model numbers or system families were provided in the product data.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the NEC and applicable local codes. De-energize the control panel and lock out/tag out all power sources before mounting or wiring this switch. The 22 mm mounting hole diameter must be verified against the enclosure or panel before installation. Confirm the enclosure rating is compatible with the NEMA 4X or NEMA 13 designation to maintain environmental protection after installation.