Schneider Electric
Schneider Electric ZB5AH5 Extended Push Button 22 mm Yellow Maintained
A 22 mm yellow maintained push button with IP66 protection and NEMA ratings 1, 13, 2, 3, 4, 4X for harsh environments
- Visually distinct yellow head for clear identification at distance
- Extended 22 mm maintained operator stays engaged until pressed again
- Snap-fit plastic construction enables fast tool-free panel installation
- IP66 and NEMA 1, 2, 3, 4, 4X, 13 ratings resist dust and water ingress
- Certified to IEC 60529, IEC 60536, UL, CSA, DNV, GL and Bureau Veritas standards
22 mm Yellow Maintained Push Button
The Schneider Electric ZB5AH5 is a 22 mm yellow maintained push button designed for industrial control panels and machinery interfaces. It suits operators who need a visually distinct actuator that stays in the pressed position until deliberately released. The plastic head, bezel and body resist corrosion in harsh environments. Panel builders and maintenance teams use it for start, stop or emergency functions where colour coding matters.
IP66 Sealed Construction
The operator carries an IP66 rating and NEMA 1, 2, 3, 4, 4X and 13 enclosure ratings, meaning it withstands dust, water jets and outdoor exposure without ingress. Snap-fit assembly reduces wiring time and eliminates loose hardware that can vibrate free. Plastic construction avoids conductive surfaces, supporting Class II IEC 60536 insulation requirements. No moving parts generate audible noise, and power draw is limited to the contact block chosen by the installer.
Replaces Worn or Non-Compliant Operators
This button replaces legacy 22 mm operators that have faded, cracked or lost their sealing integrity after years of vibration to IEC 60068-2-6 and shock to IEC 60068-2-27. The upgrade is worth it when panels must meet current UL Listed, CSA, DNV, GL, LROS and Bureau Veritas certifications, or when REACH and RoHS compliance becomes mandatory. It does not suit applications needing momentary action, illuminated heads or metal bezels.
Highlights
- Visually distinct yellow head for clear identification at distance
- Extended 22 mm maintained operator stays engaged until pressed again
- Snap-fit plastic construction enables fast tool-free panel installation
- IP66 and NEMA 1, 2, 3, 4, 4X, 13 ratings resist dust and water ingress
- Certified to IEC 60529, IEC 60536, UL, CSA, DNV, GL and Bureau Veritas standards
Specifications
| Brand | SCHNEIDER ELECTRIC |
|---|
Questions about this item
How do I install the Schneider Electric ZB5AH5 push button into a 22 mm panel cut-out and which step is often missed?
Insert the operator through the 22 mm hole, align the anti-rotation notch, then snap the contact block onto the back until it clicks; the step often missed is fully seating the snap-fit latch so the block cannot rotate.
What maintenance or replacement will the yellow extended push button need after extended service?
The plastic head and bezel resist harsh environments to IP66 and NEMA 4X, but inspect the colour cap periodically for UV fading or impact cracks and replace the complete operator if the maintained latch mechanism no longer holds position.
What is the first limit that appears when the button is held in the maintained position under continuous vibration?
The operator meets IEC 60068-2-6 vibration and IEC 60068-2-27 shock standards, so the first limit under sustained use is typically mechanical wear of the latch spring rather than seal or electrical failure.
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