PMV40A240 - 3PH SYSTEM MULTIF.PROTECTION 208/240V

Why Choose the PMV40A240?

Ensure reliable protection on three-phase systems without neutral with the Lovato PMV40A240 voltage monitoring relay. It detects asymmetry, phase loss and incorrect phase sequence on 208–240VAC 50/60Hz supplies. Self powered and simple to set via potentiometers, it provides a single relay output, helping safeguard motors, pumps and panels from damaging voltage conditions.

Engineered for longevity and resilience, the PMV40A240 delivers 30,000,000 mechanical cycles and withstands 6 kV impulses. It operates from -20 to +60 °C and meets IEC/EN 60255-5, 61000-6-2, 61000-6-3, UL 508 and CSA C22.2 n° 14. With 8 A Ith and secure terminals rated to 0.8 Nm, this 130 g unit integrates smoothly into industrial control panels.

Key Benefits

• Detects asymmetry, phase loss and incorrect phase sequence.
• Self powered on 208–240VAC, no separate supply required.
• Simple configuration via potentiometers for quick commissioning.
• High immunity: 6 kV impulse withstand for robust protection.
• Long mechanical life of 30,000,000 cycles for reliability.
• Wide operating range from -20 to +60 °C environments.
• Compliant with IEC/EN, UL and CSA standards for assured performance.

Technical Specification

• Product type designation: PMV40
• 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 PMV40A240 voltage monitoring relay
• Quick start guide and safety instructions
• Manufacturer datasheet (digital access)

Applications

• Protecting three-phase motors and pumps from phase loss or sequence faults
• Monitoring voltage asymmetry in industrial control panels without neutral
• Safeguarding compressors, fans and conveyors on 208–240VAC supplies
• Alarm and interlock control based on voltage fault conditions

Safety note: Always isolate the supply before installation or adjustment. Installation should be performed by qualified personnel, tightening terminals to a maximum of 0.8 Nm and following applicable standards and local regulations.