Schneider Electric ZB4BL434 Momentary Push-button Switch

Product Description

The SCHNEIDER ELECTRIC ZB4BL434 is a momentary push-button switch designed for industrial control panel applications. It features a 22 mm mounting hole diameter, a round red extended-style metal operator, and a non-illuminated, momentary (MO) action. The metal construction and NEMA 4X and 13 ratings make it suitable for demanding environments where moisture, dust, and corrosion resistance are required. Licensed electricians and control panel integrators install this switch in machine control stations, operator interface enclosures, and process control panels. It carries multiple international certifications including UL 508, CSA, and EN/IEC 60947-5-1.

The ZB4BL434 is used in both light industrial and heavy industrial settings where a reliable momentary-contact operator is needed. Its 22 mm format is one of the most common standard panel cutout sizes, making it a straightforward fit in new builds or retrofit applications. Typical installations include motor start/stop stations, conveyor control panels, and equipment e-stop or reset assemblies. The red color convention makes it easy to identify within multi-button operator stations.

Key Features

• Momentary (MO) operation with extended round red metal push button
• 22 mm standard mounting hole diameter for broad panel compatibility
• Non-illuminated operator keeps wiring simple with no lamp circuit required
• NEMA 4X and 13 rated for dust-tight, waterproof, and corrosion-resistant installations
• Certified to UL 508, CSA C22.2 No. 14, EN/IEC 60947-5-1, and additional international standards including DNV, GL, and RINA
• Metal push button material provides durability in high-use or harsh environments

Compatibility

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

Installation Notes

Installation should be performed by a qualified electrician in accordance with NEC guidelines and applicable local codes. Disconnect and lock out all power to the control panel before removing or installing any push-button operator. Verify that the panel enclosure rating matches or exceeds the NEMA 4X and 13 rating of this switch for the installation environment. Do not exceed the contact ratings of the switch block assembly used with this operator head.