Schneider Electric ZB4BW7A1721 Illuminated Push-button Switch

Product Description

The SCHNEIDER ELECTRIC ZB4BW7A1721 is an illuminated momentary push-button switch designed for industrial and commercial control panel applications. It features a 22 mm mounting hole diameter, a flush-style rectangular actuator in black and white, and an integrated LED lamp for operator feedback. The bezel is constructed from chromium-plated metal, providing durability in demanding environments. Rated NEMA 13 and 4X, this switch resists dust, oil, and corrosive agents, making it suitable for washdown and harsh-duty installations. Licensed electricians and control panel builders are the primary installers of this device.

This push-button switch is used in industrial control panels, machine operator interfaces, and process control equipment where a momentary on-off switching sequence with visual indication is required. The LED illumination allows operators to confirm switch activation or system status at a glance. Its shock-resistant and vibration-resistant construction suits applications in manufacturing, automation, and heavy equipment environments where panel-mounted controls are subject to mechanical stress.

Key Features

• 22 mm mounting hole diameter for standard industrial panel cutouts
• Momentary (MO) operation with on-off switch sequence
• Integrated LED lamp provides illuminated operator feedback
• Flush, rectangular actuator in black and white
• Chromium-plated metal bezel for corrosion resistance
• Shock-resistant and vibration-resistant construction
• NEMA 4X and NEMA 13 rated for washdown and oil-tight environments

Compatibility

Designed as an OEM-style replacement or new-installation push-button switch for industrial control panels requiring a standard 22 mm momentary illuminated switch with LED indication.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements and applicable local codes. De-energize and lockout-tagout the control panel before mounting or wiring this switch. Ensure the panel cutout diameter matches the 22 mm requirement before installing the bezel assembly. Follow the manufacturer wiring diagram for correct connection of the LED lamp circuit and switch contacts.