3-Phase 4-Wire Voltage Current Protector Relay 63/100A
3-Phase 4-Wire Voltage Current Protector Relay 63/100A
3-Phase 4-Wire Adjustable Voltage & Current Protection Relay with Digital Display
Keep your three-phase electrical equipment operating safely with the Dreamburgh 3-Phase 4-Wire Adjustable Voltage & Current Protector. Rated at 380V and available in 63A and 100A configurations, this compact ABS relay continuously monitors your circuit and automatically disconnects the load when voltage or current levels fall outside safe thresholds — then reconnects once conditions return to normal. A large digital display gives you a real-time, at-a-glance readout of operating voltage and current, so you always know exactly what's happening in your circuit. Made in Mainland China.
Key Features
- Real-Time Digital Display: Large, easy-to-read screen shows live voltage and current readings for instant circuit status monitoring.
- Automatic Overload Cut-Off: Instantly disconnects the power supply when overvoltage, undervoltage, or overcurrent conditions are detected, safeguarding connected equipment from burnout.
- Auto-Reconnect: Once the circuit returns to normal operating parameters, the relay automatically closes and restores power — no manual reset required.
- Adjustable Thresholds: Set your own voltage and current trip points to match the specific requirements of your electrical installation.
- 3-Phase 4-Wire Design: Suitable for standard 380V three-phase industrial and commercial power systems.
- Compact Mini Form Factor: Dimensions of just 10 × 11.5 × 7.5 cm make it easy to fit into existing electrical panels and enclosures.
- Durable ABS Housing: Impact-resistant white ABS casing provides robust protection in demanding environments.
Specifications
| Brand | Dreamburgh |
| Rated Voltage | 380V (3-Phase 4-Wire) |
| Rated Current | 63A / 100A |
| Material | ABS |
| Dimensions | 10 × 11.5 × 7.5 cm |
| Color | White |
| Battery Included | No |
| Wireless | No |
| Country of Origin | Made in Mainland China |
What's in the Box
- 1 × 3-Phase 4-Wire Adjustable Voltage & Current Protector Relay
Important Notes
- Please allow 1–3 cm tolerance due to manual measurement.
- Actual color may vary slightly from product images due to screen and lighting differences.
- Installation should be carried out by a qualified electrician in compliance with local electrical codes.
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Frequently Asked Questions
Q: What voltage and current ratings does this 3-phase protector relay support?
A: This relay is rated for 380V three-phase 4-wire systems and is available in 63A and 100A current ratings, making it suitable for a wide range of industrial and commercial electrical installations.
Q: Does the relay reconnect automatically after tripping?
A: Yes. Once the voltage and current readings return to within the user-set safe thresholds, the relay automatically closes the circuit and restores power without requiring any manual intervention.
Q: Can the trip thresholds be adjusted?
A: Absolutely. Both the voltage and current trip points are fully adjustable, allowing you to tailor the protection settings to the specific requirements of your electrical equipment and installation.
Q: Is professional installation required?
A: Because this device operates at high voltages (380V AC, above 50V AC), it should be installed by a qualified electrician in accordance with all applicable local electrical safety codes and regulations.