XB4-BVM3
ActiveXB4 Buzzer Module 24V
Schneider Harmony XB4 buzzer — audible indicator in 22mm mounting.
Common Applications
Panel-mount buzzer in standard Harmony XB4 form factor. Continuous or pulsed tone. Mounts in the same 22mm cutout as buttons and indicators. Used for fault alerts, cycle completion, and operator attention.
Specifications
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Certifications
Third-party safety certifications. UL = required for US NEC installations. CE = EU compliance. CSA = Canadian standards.
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UL, CSA, CE
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Cutout Diameter
The hole size you drill in your panel to mount this button. 22mm is the most common industrial standard worldwide.
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22mm
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Material
The bezel/body material. Metal bezels are more durable in harsh environments. Plastic is lighter and cheaper.
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Metal bezel
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Voltage
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24V AC/DC
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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
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
$89.31 — $117.35
across 2 distributors
Quick Specs
- Certifications
- UL, CSA, CE
- Cutout Diameter
- 22mm
- Material
- Metal bezel
- Voltage
- 24V AC/DC
What People Are Saying
“Panel-mount buzzer in standard Harmony XB4 form factor. Continuous or pulsed tone. Mounts in the same 22mm cutout as buttons and indicators. Used for fault alerts, cycle completion, and operator atten”