PMV40A575 - 3 PHASE LINE VOLTAGE CONTROL RELAY PMV40

Why Choose the PMV40A575?

Lovato PMV40A575 is a voltage monitoring relay for three‑phase systems without neutral, designed to detect phase loss, incorrect phase sequence and asymmetry across 380…575VAC at 50/60Hz. Self powered and simple to configure via potentiometers, this PMV40 series unit provides dependable protection and control for three‑phase installations. With one relay output, it helps safeguard equipment by reacting to supply anomalies before they cause faults or downtime.

Built for demanding environments, PMV40A575 offers Ith (IEC) 8 A and a mechanical life of 30,000,000 cycles, with operation from −20 to +60 °C. It withstands 6 kV impulse surges and uses 0.8 Nm terminal tightening. Conformity includes IEC/EN 60255‑5, 61000‑6‑2 and 61000‑6‑3, plus UL 508 and CSA C22.2 n° 14. At 130 g, it integrates easily into three‑phase monitoring schemes.

Key Benefits

• Reliable detection of asymmetry, phase loss and incorrect phase sequence.
• Suitable for three‑phase systems without neutral at 380…575VAC.
• Self powered operation eliminates the need for an auxiliary supply.
• Quick, precise adjustment using potentiometers.
• High endurance: 30,000,000 mechanical cycles for long service life.
• Robust 6 kV impulse withstand for surge‑prone networks.
• Broad operating temperature range from −20 to +60 °C.

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 PMV40A575 voltage monitoring relay
• Quick start/installation instructions
• Manufacturer datasheet (downloadable)
• Compliance and certification information

Applications

• Protecting three‑phase supplies without neutral from phase faults and asymmetry.
• Monitoring phase sequence and loss in three‑phase installations.
• Safeguarding equipment operating on 380…575VAC, 50/60Hz three‑phase networks.
• Use where IEC/EN and UL/CSA compliance is required for voltage monitoring.

Safety note: Install and commission only by qualified personnel. Always isolate the supply before wiring or adjustment, and operate the relay strictly within the specified voltage, temperature and standards.