Schneider Electric · Harmony XB4 Series

ZB4-BW333-230

Active
UL CSA CE

22mm Green Illuminated Button 230V XB4

Part number: ZB4 - B - W - 3 - 33
Schneider Electric Harmony XB4 Series Introduced circa 2003

Schneider XB4 illuminated green for 230V circuits.

Common Applications

For European panels with direct mains-voltage indicators. Same button, different LED voltage module. Verify voltage before installing.

Specifications

Certifications
UL, CSA, CE
Color
Green
Cutout Diameter
22mm
Illumination
Illuminated
IP Rating
IP66
LED Voltage
230V AC
Material
Metal

Installation Quick Reference

Panel cutout: 22mm. Insert from the front of the panel, secure with mounting nut from behind (tighten to 2-3 Nm).

Contact block: Snap or screw the contact block onto the rear of the button body. Ensure the contact block orientation matches the wiring diagram — NO terminals are usually marked.

Wiring: Use 0.5-2.5mm² stranded wire with ferrules. Tighten screw terminals to 0.8 Nm. Test the button function before energizing the circuit.

Dimensions

Front 22mm cutout panel hole diameter Side panel contact ~45mm depth

Troubleshooting

Button doesn't respond when pressed

Check the contact block first — it's the most common failure point. Test continuity across the NO or NC terminals with a multimeter. If no click is felt, the return spring in the head may be broken.

Works intermittently

Contact block contacts are pitted or burned. Replace the contact block — don't try to file the contacts. Check if the rated cycle count has been exceeded.

Button feels mushy or doesn't click

The spring return mechanism in the button head is worn. Replace the head. The contact block can usually be reused if it tests OK.

Where to Buy

Price range

$27.62 — $28.98

across 2 distributors

Quick Specs

Certifications
UL, CSA, CE
Color
Green
Cutout Diameter
22mm
Illumination
Illuminated
IP Rating
IP66

What People Are Saying

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“For European panels with direct mains-voltage indicators. Same button, different LED voltage module. Verify voltage before installing.”

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