PMV50A240 - 3PH SYSTEM MULTIFUNCTION PRO- TECTION RE

Why Choose the PMV50A240?

Ensure reliable three-phase supply protection with the Lovato PMV50A240 voltage monitoring relay. Designed for systems without neutral, it supervises minimum and maximum AC voltage, phase loss and incorrect phase sequence on 208…240VAC 50/60 Hz networks. The SKU PMV50A240 is self powered, simplifying installation, and belongs to Lovato’s PMV50 series of voltage monitoring relays for dependable, continuous plant operation.

Featuring one relay output and simple potentiometer programming, the PMV50 offers robust performance with Ith (IEC) 8 A, 6 kV impulse withstand and a mechanical life of 30,000,000 cycles. It operates from −20 to +60 °C and meets IEC/EN 60255-5, IEC/EN 61000-6-2/-6-3, UL 508 and CSA C22.2 n° 14 requirements, supporting reliable panel integration.

Key Benefits

• Continuous monitoring of 208–240VAC min/max thresholds on three-phase supplies.
• Detects phase loss and incorrect phase sequence to protect equipment.
• Self powered design eliminates the need for an external supply.
• Simple commissioning via potentiometer adjustments for fast setup.
• One relay output for alarms, interlocks or control actions.
• High immunity: 6 kV impulse withstand for demanding environments.
• Wide operating temperature from −20 to +60 °C.
• Long mechanical life rated at 30,000,000 cycles.

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 PMV50A240 voltage monitoring relay
• Installation and user documentation

Applications

• Protecting three-phase motors from phase loss and reverse sequence
• Monitoring supply voltage in industrial control panels
• Safeguarding pumps, compressors and conveyors on 208–240VAC networks
• Supervising generator or mains feeds without neutral

Safety note: Install and commission only by qualified personnel. Isolate the supply before wiring or adjustment and observe the specified terminal tightening torque and applicable standards.