Schneider Electric ZB4BA56 Push-button Switch 22mm

Product Description

The SCHNEIDER ELECTRIC ZB4BA56 is a momentary push-button switch designed for industrial and commercial control panel applications. It features a round, yellow, recessed metal actuator that mounts through a 22 mm panel cutout. The nonilluminated operator provides a simple, tactile momentary contact action — pressing the button closes or opens the circuit, and the button returns to its default position upon release. At 0.06 pounds, it is a compact control component rated NEMA 4X and NEMA 13, making it suitable for environments where moisture, dust, and corrosion resistance are required. Licensed electricians and industrial control panel builders are the primary installers of this device.

The ZB4BA56 is used in industrial control panels, machine tool enclosures, and process control equipment where a momentary operator is needed. Its NEMA 4X rating makes it appropriate for washdown, outdoor, and corrosive-atmosphere installations. The recessed yellow button helps differentiate this operator from others on a panel face and provides incidental protection against unintended actuation. It is well suited for both new panel builds and replacement of worn or damaged momentary operators in existing enclosures.

Key Features

• 22 mm mounting hole diameter for standard industrial panel cutout compatibility
• Momentary (MO) operation — returns to default position upon release
• Recessed round yellow metal actuator for incidental actuation protection and visual differentiation
• Nonilluminated operator — no lamp or LED assembly required
• NEMA 4X and NEMA 13 rated for washdown, dust-tight, and corrosion-resistant enclosures
• Certified to UL 508, CSA C22.2 No. 14, EN/IEC 60947-5-1, and multiple international standards

Compatibility

Designed as an OEM-style replacement or new-build momentary push-button operator for 22 mm industrial control panel systems requiring a nonilluminated, recessed, round yellow metal actuator.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NFPA 70 (NEC) and applicable local codes. Disconnect and lock out all power to the control panel before removing or installing push-button operators. The mounting hole must be clean and burr-free to ensure proper sealing and NEMA-rated ingress protection. Do not overtighten the mounting nut, as this can crack the operator body or distort the panel cutout seal.