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EMIREL V3-12-B | 3-Phase Sequence Relay
- The 3-phase sequence relay monitors the correct L1-L2-L3 order
- Detects incorrect sequence or phase loss via motor back voltage
- Automatic reset when phase sequence restored
- Self-powered from 3-phase mains (180-600 Vac 50-60 Hz)
- Output: 1 relay, 1 changeover contact (5 A @ 230 VAC)
- Compact 17.5 × 90 × 80 mm DIN rail module; operating -20 to 70 °C
Datasheet: 
V3-12-B
Original price was: Rs 38,000.Rs 22,800Current price is: Rs 22,800.
SKU: V9-19-1-1
Categories: Relays & Contactors, Phase & Voltage Protection Relays, Under & Overvoltage Relays
Tag: Made In Italy
Emirel V3-12-B is a three-phase phase-sequence relay for monitoring the correct order of L1, L2, and L3 phases in AC systems. It provides automatic reset once the proper sequence is restored and ensures motor rotation integrity and protection against reverse connection or loss of phase.
Features
- Monitors phase sequence (L1, L2, L3) and phase asymmetry (A-version only)
- Automatic reset when the correct sequence is detected
- LED indication for power and correct sequence
- Self-powered from monitored line, 2 VA @ 50/60 Hz
- DIN rail mounting, compact 17.5 mm case; -20 to 70 °C operation
Technical specifications
| Model | V3-12-B |
| Function | Phase sequence control (L1, L2, L3) |
| Detection | Incorrect sequence and phase loss by back-voltage sensing |
| Reset | Automatic when the correct sequence is restored |
| Supply voltage | Self-powered, 180-600 Vac 50-60 Hz |
| Output | 1 relay, 1 CO contact (5 A @ 230 VAC) |
| Input resistance | 2 MΩ; inputs 4-6-8 (Vmax 750 V) |
| Housing | 1-module 17.5 × 90 × 80 mm DIN rail; color grey |
| Operating temperature | -20 to 70 °C |
| Standards | CEI-EN 61010-1; EN 60335-1; CEI-EN 61326-1 |
For more information, visit the OEM page for V3-12-B.
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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