Harmony signalling devices
🔔 Harmony Signalling Devices
Harmony signalling devices
are Schneider Electric’s visual and audible indicators
designed for medium‑ to long‑distance machine status communication
across a factory floor.
They complement pushbuttons by providing high‑visibility, high‑audibility alerts
for operators, technicians, and safety personnel.
🚦 1. Tower / Stack Lights
Multi‑tier visual indicators for machine status, faults, and operating modes.
- Modular towers
— XVU / XVB / XVB7 (Ø60–70 mm)
Stackable light blocks (steady, blink, flash) + buzzer; XVB7 adds USB, IO‑Link, and vocal alerts. - Monolithic towers
— XVC / XVM
Pre‑assembled, pre‑wired units for fast installation on compact machines.
🚨 2. Beacons & Flashing Lights
Single‑unit visual alerts for attention‑critical zones.
- Harmony XVR
— large rotating/flashing beacons (Ø80–130 mm)
Used on cranes, AGVs, and hazard zones. - Harmony XVDLS
— compact Ø45 mm mini‑beacons
Ideal for localised machine warnings.
🔊 3. Audible Alarms & Sirens
For environments where visual cues may be missed.
- Harmony XVS
— multi‑tone electronic sirens
Plays alarm tones, melodies, or voice messages for fast fault identification.
🛠️ Key Strengths
- High protection ratings — IP65/IP66 for dust and washdown resistance
- LED technology — high brightness, long life, low power
- Factory‑floor visibility — designed for long‑distance status indication
⭐ One‑line summary
Harmony signalling devices provide long‑range visual and audible machine status indication using tower lights, beacons, and sirens built for rugged industrial environments.
