PMV20A240 - PHASE SEQUENCE/PHASE LOSS MODULAR RELAY

Why Choose the PMV20A240?

Lovato PMV20A240 is a voltage monitoring relay for three-phase systems without neutral, engineered to detect phase loss and incorrect phase sequence. Operating on 100–240 VAC at 50/60 Hz and self powered, PMV20A240 provides a single relay output for dependable signalling. Based on the PMV20 designation, it delivers accurate monitoring performance for industrial control applications where supply integrity and correct rotation are critical to equipment protection.

Built for reliability, it offers 8 A Ith (IEC), a mechanical life of 3,000,000 cycles, and a 6 kV rated impulse withstand voltage. With an operating range of -20 to +60 °C and storage of -30 to +80 °C, plus a lightweight 120 g build, it suits demanding panels. Conformity includes IEC/EN 60255-5, 61000-6-2, 61000-6-3, UL 508 and CSA C22.2 n° 14.

Key Benefits

• Detects phase loss and incorrect phase sequence for equipment protection.
• Designed for three-phase systems without neutral conductors.
• Self powered, 100–240 VAC supply at 50/60 Hz.
• 8 A Ith (IEC) and 6 kV impulse withstand resilience.
• Long mechanical life rated at 3,000,000 operations.
• Reliable status via single relay output for control circuits.
• Verified to IEC/EN EMC standards, UL 508 and CSA.

Technical Specification

• Product type designation: PMV20
• Ith (IEC): 8 A
• Mechanical life: 3000000 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: 120 g

What’s Included

• Lovato PMV20A240 voltage monitoring relay
• User instructions
• Protective packaging

Applications

• Monitoring three-phase supplies without neutral for phase loss
• Detecting incorrect phase sequence before equipment start-up
• Protection signalling in industrial control panels
• General voltage monitoring in automation systems
• Compliance-driven installations requiring IEC/EN, UL or CSA approvals

Safety note: Install and commission only by qualified personnel. Isolate the supply before wiring, observe the 0.8 Nm terminal torque, and follow applicable standards and local regulations.