Schneider Electric · Harmony XB4 Series

ZB4-BV063

Active
UL CSA CE

22mm Blue Pilot Light 24V

Part number: ZB4 - B - V
Schneider Electric Harmony XB4 Series Introduced circa 2003

Schneider XB4 blue pilot light head.

Common Applications

Blue indicator for mandatory action per IEC 60204-1. Used to show fault requiring acknowledgment or process requiring operator intervention. Completes the full color set: green, red, yellow, blue, white.

Specifications

Certifications
UL, CSA, CE
Color
Blue
Cutout Diameter
22mm
IP Rating
IP66
LED Voltage
24V AC/DC
Material
Metal

Installation Quick Reference

Panel cutout: 22mm. Insert from the front, secure with mounting nut.

LED module: Check the voltage rating matches your supply (typically 24V DC or 230V AC). Connect to PLC digital output or relay contact for status indication.

Color meaning (IEC 60204-1): Green = normal/running. Red = fault/danger. Yellow = warning/caution. Blue = mandatory action. White = neutral/general.

Dimensions

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

Troubleshooting

Light is dim or flickering

Check supply voltage matches the LED module rating. Low voltage causes dimming. If voltage is correct, the LED module is failing — replace it. LED modules have finite life (typically 50K-100K hours).

Light doesn't turn on

Verify voltage at the terminals with a multimeter. Check the PLC output or relay driving the light. LED modules are polarity-sensitive on DC circuits — try reversing the leads.

Where to Buy

Price range

$24.27 — $30.97

across 2 distributors

Quick Specs

Certifications
UL, CSA, CE
Color
Blue
Cutout Diameter
22mm
IP Rating
IP66
LED Voltage
24V AC/DC

What People Are Saying

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“Blue indicator for mandatory action per IEC 60204-1. Used to show fault requiring acknowledgment or process requiring operator intervention. Completes the full color set: green, red, yellow, blue, whi”

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