Product Overview
Schneider Electric Harmony XB4 Blue Illuminated Pushbutton - 22mm, 24V LED, 1NO+1NC, IP66/IP69K, Screw Terminals
Condition
Unused new old stock sourced from a contract manufacturer clearing surplus inventory. Box shows moderate wear and creasing; contents are clean and pristine with no damage observed. Box label confirms part number XB4BW36B5, date code 2021-08-27, LED 24V, Made in France. NO and NC contact blocks are attached and intact. CE and UL markings visible on the contact block face.
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Product Overview
Schneider Electric XB4BW36B5 - a complete illuminated pushbutton from the Harmony XB4 series. Blue flush actuator with chrome-plated die-cast metal body, spring-return momentary action, and a built-in 24V AC/DC LED that provides both control input and visual status indication in a single 22mm panel-mount unit. Terminal face shows NO3/4 contacts with green insert and NC1/2 contacts with red insert. Manufactured in France.
Key Features
- Model: XB4BW36B5 - Harmony XB4 series, Schneider Electric
- Illumination: Blue LED, 24V AC/DC supply voltage
- Contact configuration: 1 Normally Open (NO) + 1 Normally Closed (NC)
- Mounting diameter: 22mm panel cutout
- Actuator type: Flush, spring-return (momentary action)
- Bezel: Chromium-plated metal
- IP rating: IP66 / IP67 / IP69 / IP69K; NEMA 4/4X/13
- Terminal type: Screw clamp terminals
- ZBE-101 NO contact block attached; Ith 10A, A600/Q600 ratings visible on block
- CE and UL marked
- Date code: 2021-08-27; Made in France
Applications
- Replacing a failed illuminated pushbutton on an industrial control panel - match the 22mm cutout, wire the NO and NC contacts to the existing circuit, and restore both switch function and blue status indication without panel modification
- Integrating into a new machine build or control cabinet where the operator needs momentary control input with a clear visual cue - the blue LED distinguishes this station from adjacent red or green buttons at a glance
- Wiring into a PLC input circuit for a start, jog, or interlock function where the 1NO+1NC configuration feeds both the PLC input and a seal-in or safety monitoring rung simultaneously
- Panel fabricators building washdown or food-processing enclosures where IP69K rating is required - flush actuator and sealed metal body hold up to high-pressure spray cleaning
- Makers and prototype builders who need a rugged, illuminated momentary switch for a custom enclosure, test fixture, or heavy-duty interactive installation where standard hobbyist buttons would not survive the environment
Frequently Asked Questions
What panel cutout size does this pushbutton require?
22mm diameter. This is a standard Harmony XB4 series mounting dimension. Confirm your panel cutout is 22mm before ordering.
Is the contact block included, or sold separately?
The ZBE-101 contact block is attached to the unit as shown in the photos. Both NO3/4 (green insert) and NC1/2 (red insert) contacts are present and intact.
What voltage does the LED require?
24V AC/DC. The label on the unit confirms this. Do not attempt to power the LED at a different voltage - the 24V marking on the terminal strip and box label both confirm this spec.
Is this a momentary or latching switch?
Momentary (spring-return). Pressing the button changes the circuit state only while held; it returns to its original position when released. It is not a latching or maintained-contact switch.
Is a manual or wiring diagram included?
Not included. The unit ships as shown.
A French-made Harmony XB4 that spent its first years in a contract manufacturer's stock room rather than a control panel - still clean, still complete, date code intact. Someone's machine is about to get exactly the blue button it was designed for.
