Vigirex
⚡ Vigirex
Vigirex is Schneider Electric’s Earth Leakage Relay (ELR) range used in commercial and industrial LV installations to detect residual current via a core‑balance CT (CBCT) and trip an upstream breaker before leakage causes shock, fire, or equipment damage.
🟦 What Vigirex Does
- Detects earth‑fault leakage using a CBCT on all phase + neutral conductors
- Trips MCCB/ACB/contactor via shunt trip or undervoltage release
- Prevents shock, fire, insulation failure
- Provides adjustable protection — leakage threshold + time delay
🟧 Typical Vigirex System
- CBCT — detects residual current
- Vigirex relay — processes signal, applies settings
- Trip device — shunt trip/UVR on MCCB or ACB
🟨 Key Features
- Adjustable sensitivity — 30 mA to 30 A
- Time delay — instantaneous or selective
- Manual/auto reset
- Status indication — alarm, pre‑alarm, trip
🟩 Where Vigirex Is Used
- Industrial plants
- Commercial buildings
- Data centers
- HVAC & motors
- Marine/offshore
Ideal where RCCBs cannot be used due to high load current, nuisance tripping, or selectivity requirements.
🟫 Vigirex vs RCCB (Quick View)
| Feature | Vigirex | RCCB |
|---|---|---|
| Sensitivity adjustable | Yes | No |
| Time delay | Yes | No |
| External CT | Yes | No |
| Industrial suitability | Excellent | Limited |
| Direct shock protection | Depends on setting | Strong (30 mA) |
⭐ One‑line summary
Vigirex is Schneider Electric’s industrial‑grade ELR system, providing adjustable, CBCT‑based earth‑fault protection for MCCB/ACB‑fed feeders in commercial and industrial LV installations.
