PMV50 A575 VOLTAGE MONITORING RELAY

Description

The PMV50 A575 Voltage Monitoring Relay is an industrial protection relay designed to continuously monitor three-phase AC voltage systems (380–575V AC) and protect equipment from abnormal electrical conditions such as under-voltage, over-voltage, phase loss, and incorrect phase sequence.

It is part of the Lovato PMV50 series, widely used in motor control panels, industrial machinery, compressors, pumps, and automation systems.

Key Features

• Monitors three-phase voltage (380–575V AC system)
• Detects overvoltage and undervoltage conditions
• Phase failure and phase sequence protection
• Self-powered operation (no external supply required)
• Adjustable voltage thresholds for flexible protection settings
• Adjustable time delay (0.1 to 20 seconds)
• High-precision tripping for stable system protection
• DIN rail mounting for control panel installation
• LED indicators for status and fault conditions
• Compact industrial design for panel integration

Specifications

• Product Type: Voltage Monitoring Relay
• Model: PMV50 A575
• Brand: Lovato
• System Type: Three-phase (without neutral)
• Rated Voltage Range: 380 – 575V AC
• Frequency: 50/60 Hz
• Supply: Self-powered from monitored line
• Output Contact: 1 SPDT relay (changeover contact)
• Contact Rating: Up to 8A (AC load)
• Time Delay: 0.1 – 20 seconds (adjustable)
• Trip Functions: Overvoltage, undervoltage, phase loss, phase sequence error
• Reset Type: Automatic
• Mounting: DIN rail (modular housing)
• Operating Temperature: -20°C to +60°C
• Protection Class: IP40 (front panel) / IP20 (terminals)
• Electrical Life: ~100,000 cycles (typical)
• Mechanical Life: Up to 30 million cycles