PMV50A575 - 3PH SYSTEM MULTIFUNCTION PRO- TECTION RE

Why Choose the PMV50A575?

Ensure reliable three-phase protection with the Lovato PMV50A575 voltage monitoring relay. Designed for systems without neutral, it supervises minimum and maximum AC voltage and detects phase loss and incorrect phase sequence across 380...575VAC at 50/60Hz. Self powered with a single relay output and intuitive potentiometer adjustment, it offers straightforward setup and dependable voltage supervision.

Built to international standards, the PMV50 series delivers robust performance and long service life. With 6 kV impulse withstand, 8 A Ith and an operating range from −20 to +60 °C, it provides reliable operation across a broad temperature range. Mechanical life of 30,000,000 cycles and defined terminal tightening torque support consistent, secure connections.

Key Benefits

• Monitors min/max AC voltage in three-phase systems without neutral
• Detects phase loss and incorrect phase sequence faults
• Self powered operation eliminates separate auxiliary supply
• Wide 380...575VAC, 50/60Hz monitoring range
• Simple adjustment via front potentiometers
• High 6 kV impulse withstand for robust surge immunity
• Long mechanical life rated at 30,000,000 cycles
• Conformity to IEC/EN, UL 508 and CSA standards

Technical Specification

• Product type designation: PMV50
• Ith (IEC): 8 A
• Mechanical life: 30000000 cycles
• Terminal tightening torque (max): 0.8 Nm
• Rated impulse withstand voltage Uimp: 6 kV
• Operating temperature: -20 to +60 °C
• Storage temperature: -30 to +80 °C
• Weight: 130 g

What’s Included

• Lovato PMV50A575 voltage monitoring relay
• Product documentation

Applications

• Voltage monitoring in three-phase systems without neutral
• Under/overvoltage supervision across 380...575VAC, 50/60Hz networks
• Detection of phase loss and incorrect phase sequence
• Use in installations requiring IEC/EN, UL 508 and CSA conformity

Safety note: Install and commission only by qualified personnel. Always de-energise before wiring, and follow the specified voltage range, terminal tightening torque and applicable standards.