PMV10A440 - MAN.RELAY AND PHASE SEQUENCE 208/480V

Why Choose the PMV10A440?

Lovato PMV10A440 is a compact voltage monitoring relay for three-phase systems without neutral. It monitors 208–480VAC at 50/60Hz to detect phase loss and incorrect phase sequence, helping safeguard motors and control equipment. With one relay output and self-powered operation, the PMV10 series device streamlines panel design while delivering dependable protection across a wide voltage window in industrial and commercial installations.

Built for reliability with 6 kV impulse withstand, 8 A Ith and a mechanical life of 3,000,000 cycles, it performs in demanding panels. Operating from -20 to +60 °C and weighing just 50 g, it installs easily; terminals accept 0.8 Nm tightening torque. Conformity includes IEC/EN 60255-5, IEC/EN 61000-6-2/-6-3, UL 508 and CSA C22.2 n° 14.

Key Benefits

• Protects against phase loss and incorrect phase sequence in three-phase circuits.
• Works on systems without neutral across the 208–480VAC, 50/60Hz range.
• Self-powered operation simplifies wiring and reduces auxiliary supply needs.
• 6 kV impulse withstand improves resilience in noisy industrial environments.
• Mechanical life rated at 3,000,000 cycles for long-term reliability.
• Operates from -20 to +60 °C to suit varied site conditions.
• Tested to IEC/EN, UL 508 and CSA standards for compliance.

Technical Specification

• Product type designation: PMV10
• 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: 50 g

What’s Included

• Lovato PMV10A440 voltage monitoring relay
• Installation and wiring leaflet
• Online datasheet (PDF)

Applications

• Protecting three-phase motors and pumps from phase loss or wrong sequence
• HVAC compressors and chillers without neutral supply
• Industrial conveyors and machinery control panels
• Generators, switchboards and distribution panels monitoring 208–480VAC

Safety note: Installation should be performed by qualified personnel. Isolate the supply before wiring, tighten terminals to a maximum of 0.8 Nm, and operate the device within its stated ratings and standards.