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EMIREL V3-18 (Previous model ref: E444N) 380/400/415VAC | 3-Phase Voltage Relay (Over/Under-Voltage, Phase Sequence & Phase Failure Detection)
- Three-phase voltage relay; monitors overvoltage (VM), undervoltage (Vm), phase sequence (L1/L2/L3), and phase failure
- Adjustable thresholds: 0 to +20 % (VM), 0 to -20 % (Vm); delay T: 0.5 to 30 s
- Self-powered from the measured line; selectable Vn on model A (380/400/415 VAC)
- Output: 1 relay, 2 changeover contacts (5 A @ 230 VAC)
- LEDs: Green (ON), Yellow (phase sequence OK), Red (alarm)
- ABS case 48 x 96 x 90 mm; operation 0 to 70 °C
Datasheet: 
V3-18
Original price was: Rs 69,000.Rs 41,500Current price is: Rs 41,500.
SKU: 380/400/415VAC
Categories: Relays & Contactors, Phase & Voltage Protection Relays, Under & Overvoltage Relays
Tag: Made In Italy
Emirel V3-18 is a three-phase voltage relay that supervises VM/Vm limits together with phase sequence and loss, providing fast lockout for mains faults. Settable max/min thresholds (±20 % window) and an adjustable delay (0.5 to 30 s) let you tailor trip behavior to the load. The unit is self-powered from the monitored line and indicates status via dedicated LEDs.
Features
- Combined over/under-voltage, phase sequence, and phase-failure detection
- Front dials for VM, Vm, and delay T (0.5 to 30 s)
- Model A with Vn selector for 380/400/415 VAC systems
- Form C output relay (2 CO) rated 5 A @ 230 VAC; high mechanical life
- Clear LED diagnostics: ON (green), phase sequence OK (yellow), alarm (red)
Technical specifications
| Model | V3-18 |
| Function | 3-phase voltage monitoring: VM, Vm, phase sequence (L1/L2/L3), phase failure |
| Thresholds | VM 0 to +20 %; Vm 0 to -20 % of rated voltage |
| Delay | T 0.5 to 30 s (trimmer); phase-sequence alarm is instantaneous |
| Rated voltage (model A) | Selectable Vn: 380 / 400 / 415 VAC |
| Input | 3-phase, pins 2–11–4; self-powered, 2 VA @ 50/60 Hz |
| Output | 1 relay, 2 changeover (5 A @ 230 VAC, resistive) |
| Indication | Green ON; Yellow L1/L2/L3 OK; Red alarm |
| Housing | ABS, 48 x 96 x 90 mm; panel socket (undecal) |
| Operating temperature | 0 to 70 °C |
| Standards | EMC CEI-EN 61326-1; LVD CEI-EN 61010-1 |
For more information, visit the OEM page for V3-18.
Brand
EMIREL
EMIREL Srl, based in Spain, specializes in industrial electronics, and one of their notable product categories is voltage relays. These relays play a crucial role in protecting electrical systems by monitoring voltage levels and triggering appropriate actions when thresholds are exceeded. Whether it’s safeguarding motors, controlling power distribution, or preventing voltage fluctuations, Emirel’s voltage relays provide reliable and precise performance.
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