Home Recloser & Remote Controller MT53RV RS485 Over/Under Voltage Protection Device

MT53RV RS485 Over/Under Voltage Protection Device

MT53RV RS485 Over/Under Voltage Protection Device

The MT53RV Series is an RS485 over/under voltage protection device designed to work with compatible MCBs, RCCBs, or RCBOs, providing remote circuit control, voltage fault protection, and automatic reclosing after voltage recovery.

• Overvoltage trip at ≥295V ±10V and reclose at ≤270V ±10V
• Undervoltage trip at ≤170V ±10V and reclose at ≥195V ±10V
• RS485 Modbus remote control
• Works with compatible MCBs, RCCBs, or RCBOs
• Automatic reclosing after voltage recovery
• Maximum 3 continuous auto-reclosing attempts
• Self-lock function after repeated reclosing failures
• Auto / Manual / Lock operation modes
• Front indicator for voltage and working status
• Compact 18mm modular design for DIN-rail installation

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Features & Advantages

feature

Over/Under Voltage Protection

Disconnects the circuit during overvoltage or undervoltage conditions and helps protect electrical equipment from abnormal voltage risks.

RS485 Remote Control

Supports RS485 Modbus communication for remote circuit control through gateway, App, Web software, or monitoring platforms.

Automatic Reclosing After Recovery

Automatically recloses the circuit after voltage returns to the safe range, helping reduce manual reset work and on-site maintenance.

Compatible Breaker Integration

Can be combined with compatible MCBs, RCCBs, or RCBOs to build different protection solutions according to the circuit requirement.

Safe Reclosing Logic

Supports limited automatic reclosing attempts and self-locks after repeated failures, helping avoid unsafe repeated reclosing.

Target

Application Areas

01
Telecom Sites

Provide over/under voltage protection and remote circuit control for telecom towers, repeaters, radio links, and network distribution equipment.
02
Public Services

Support automatic power recovery for public lighting, traffic lights, advertising panels, and other outdoor public service circuits.
03
Transportation Systems

Reduce on-site maintenance for railway stations, highways, airports, and bus terminals where stable power supply is required.
04
Green Energy

Protect photovoltaic systems, EV charging networks, and distributed energy equipment from voltage abnormalities while supporting remote monitoring and recovery.