PROTECTION RELAYS - LOVATO ELECTRIC - #13

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Protection relays For single and three-phase Systems Frequency monitoring relay Ordercode Rated voltage Ue Qty per pkg Wt [V] 50/60Hz n° [kg] Single and three-phase Systems. Minimum and maximum frequency. Delayed trip. Automatic reset. PMF20 A240 220-240VAC 1 0.125 PMF20 A415 380-415VAC 1 0.125 General characteristics - Frequency monitoring relay, self powered, for minimum and maximum control - Rated frequency selection: 50 or 60Hz - Tripping threshold for minimum and maximum frequency - Excellent tripping accuracy - 1 relay output, configurable, with 1 changeover contact (SPDT) - Modular DIN 43880 housing, 2-module - IEC protection degree: IP40 on front (only when placed in IP40 enclosure or control board); IP20 at terminals. ADJUSTMENTS "Hz max" Maximum frequency tripping threshold +1 to +10% "Delay" Tripping time 0.1-20s "Hz min" Minimum frequency tripping threshold -1 to -10% "Delay" Tripping time 0.1-20s "Reset delay" Resetting time 0.1-20s "Mode" • Minimum and maximum frequency • Output relay energised at maximum frequency • Output relay energised at minimum frequency • Output relay de-energised at maximum frequency. Certifications and compliance Certifications obtained: GOST; UL Listed, for USA and Canada (File E93601), as Auxiliary Devices. Compliant with standards: IEC/EN 60255-5, IEC/EN 61000-6-2, IEC/EN 61000-6-3, UL 508, I3CSA C22.2 n° 14. Operational diagram See page 17-23. PMF20... 17 Dimensions page 17-14 Wiring diagrams page 17-23 Technical characteristics page 17-28 17-12