PMV55A240 - 1 PHASE LINE VOLTAGE CONTROL RELAY PMV55

Why Choose the PMV55A240?

The Lovato PMV55A240 is a voltage monitoring relay for single-phase systems, supervising minimum and maximum AC levels on 208...240VAC at 50/60Hz. It is self powered and adjusted via potentiometers, with one relay output for dependable signalling or control. Built on the PMV55 platform, it suits protective monitoring in control panels, OEM machinery and building services.

Engineered for demanding environments, the PMV55A240 withstands 6 kV impulse surges and offers an 8 A Ith rating with a 30,000,000-cycle mechanical life. Reliable from -20 to +60 °C and conforming to IEC/EN, UL and CSA standards, it provides assured performance and straightforward commissioning for voltage supervision across industrial, commercial and infrastructure applications.

Key Benefits

• Single-phase monitoring of minimum and maximum AC voltage levels.
• Suits 208...240VAC systems at 50/60Hz operation.
• Self powered design simplifies wiring and panel integration.
• Potentiometer adjustment enables quick, precise threshold setting.
• One relay output for reliable signalling or control actions.
• Rated impulse withstand voltage Uimp 6 kV for surge resilience.
• Ith 8 A and 30,000,000-cycle mechanical life for durability.
• Operates reliably from -20 to +60 °C ambient.

Technical Specification

• Product type designation: PMV55
• 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: 125 g

What’s Included

• Lovato PMV55A240 voltage monitoring relay
• Installation and operation leaflet
• Protective packaging

Applications

• Under/overvoltage protection on single-phase 208...240VAC supplies
• Control panels and automation cabinets requiring voltage supervision
• Pumps, fans and motors needing single-phase supply monitoring
• HVAC and refrigeration equipment protection and control
• OEM machinery and building services installations

Safety note: Installation and commissioning should be performed by a qualified electrician. Isolate all power before wiring, observe the stated ratings and standards, and verify settings to prevent nuisance tripping.