PMF20A415 - MULTIFUNCTION FREQUENCY PROTEC TION RELA

Why Choose the PMF20A415?

Ensure reliable mains frequency protection with the Lovato PMF20A415 frequency monitoring relay. Designed for single‑phase 380…415VAC, 50/60Hz systems, the PMF20A415 is self powered from the monitored line and lets you set minimum and maximum frequency thresholds via easy front potentiometers. Robust construction with 6 kV impulse withstand helps safeguard control panels, while compact 125 g design integrates neatly into industrial installations.

Built for demanding environments, this PMF20 series relay offers an Ith of 8 A and an exceptional mechanical life of 30,000,000 cycles. Operating from −20 to +60 °C with 0.8 Nm terminal torque, it conforms to IEC/EN 60255-5, 61000-6-2, 61000-6-3, and also conforms to UL 508 and CSA C22.2 n° 14. Simple, accurate frequency control that supports compliance and uptime.

Key Benefits

• Self powered from monitored 380…415VAC, simplifying installation.
• Adjustable min/max frequency via front potentiometers for quick setup.
• Wide operating range from −20 to +60 °C for dependable performance.
• High impulse withstand voltage of 6 kV enhances surge resilience.
• Long mechanical life of 30,000,000 cycles reduces maintenance.
• Conforms to IEC/EN, UL and CSA standards for easy specification.
• Compact 125 g unit integrates neatly in control panels.
• 8 A Ith output supports robust switching circuits.

Technical Specification

• Product type designation: PMF20
• 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 PMF20A415 frequency monitoring relay
• Installation and configuration instructions
• Downloadable product data sheet

Applications

• Single-phase frequency supervision in 380…415VAC, 50/60 Hz mains
• Protecting equipment against under- and over-frequency conditions
• Industrial control panels requiring standards-conformant frequency monitoring
• Process and building services panels seeking simple, potentiometer-based setup

Safety note: Installation and commissioning must be performed by qualified personnel. Isolate the supply before wiring, tighten terminals to 0.8 Nm, and operate only within the specified voltage and temperature ranges.