Main range of productZelio Control product or component typeModular measurement and control relays relay typeVoltage control relay product specific applicationFor 3-phase supply relay nameRM35UB3 relay monitored parametersOvervoltage and undervoltage between phases time delayAdjustable 0.3...30 s, 0 + 10 % on crossing the threshold switching capacity in VA1250 VA minimum switching current10 mA at 5 V DC maximum switching current5 A AC/DC power consumption in VA0...22 VA at 400 V AC 50 Hz measurement range194...528 V voltage AC 50/60 Hz utilisation categoryAC-12 conforming to IEC 60947-5-1AC-13 conforming to IEC 60947-5-1AC-14 conforming to IEC 60947-5-1AC-15 conforming to IEC 60947-5-1DC-12 conforming to IEC 60947-5-1DC-13 conforming to IEC 60947-5-1DC-14 conforming to IEC 60947-5-1 Complementary reset time1500 ms for time delay maximum switching voltage250 V AC/DC [Us] rated supply voltage220...480 V AC, 50/60 Hz +/- 10 % supply voltage limits194...528 V AC voltage detection threshold194 V control circuit frequency50...60 Hz +/- 15 % output contacts1 C/O + 1 C/O, 1 per threshold nominal output current5 A measuring cycle<= 150 ms measurement cycle as true rms value hysteresis2 % measurement accuracy+/- 10 % of the full scale value repeat accuracy+/- 0.5 % for input and measurement circuit+/- 1 % for time delay measurement error< 1 % over the whole range with voltage variation0.05 %/°C with temperature variation response time< 200 ms in the event of a fault quality labelsCE overvoltage categoryIII conforming to IEC 60664-1 insulation resistance> 500 MOhm at 500 V DC conforming to IEC 60255-5 [Ui] rated insulation voltage400 V conforming to IEC 60664-1 operating positionAny position without connections - terminalsScrew terminals 1 x 0.5...1 x 4 mm² - AWG 20...AWG 11, solid cable without cable endScrew terminals 2 x 0.5...2 x 2.5 mm² - AWG 20...AWG 14, solid cable without cable endScrew terminals 2 x 0.2...2 x 1.5 mm² - AWG 24...AWG 16, flexible cable with cable endScrew terminals 1 x 0.2...2 x 2.5 mm² - AWG 24...AWG 12, flexible cable with cable end tightening torque0.6...1 N.m conforming to IEC 60947-1 housing materialSelf-extinguishing plastic local signallingLED green for power ONLED yellow for relay ON mounting support35 mm symmetrical DIN rail conforming to EN/IEC 60715 electrical durability10000 cycles mechanical durability30000000 cycles operating rate<= 360 operations/hour under full load safety reliability dataB10d = 300000MTTFd = 319.6 years width35 mm product weight0.08 kg Environment electromagnetic compatibilityEmission standard for industrial environments conforming to EN/IEC 61000-6-4Emission standard for residential, commercial and light-industrial environments conforming to EN/IEC 61000-6-3Immunity for industrial environments conforming to NF EN/IEC 61000-6-2 standardsEN/IEC 60255-1 product certificationsCSAC-TickGLGOSTUL directives89/336/EEC - electromagnetic compatibility73/23/EEC - low voltage directive ambient air temperature for storage-40...70 °C ambient air temperature for operation-20...50 °C relative humidity95 % at 55 °C conforming to IEC 60068-2-30 vibration resistance0.35 mm (f = 5...57.6 Hz) conforming to IEC 60068-2-61 gn (f = 57.6...150 Hz) conforming to IEC 60255-21-1 shock resistance5 gn conforming to IEC 60068-2-27 IP degree of protectionIP20 (terminals) conforming to IEC 60529IP30 (casing) conforming to IEC 60529 pollution degree3 conforming to IEC 60664-1 dielectric test voltage2 kV AC 50 Hz, 1 min non-dissipating shock wave4 kV Offer Sustainability Sustainable offer statusGreen Premium product RoHS (date code: YYWW) REACh Product environmental profile Product end of life instructions Contractual warranty Warranty period18 months
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Dimensions Drawings3-Phase Voltage Control RelaysDimensions and Mounting
Connections and Schema3-Phase Voltage Control RelaysWiring Diagram
Technical DescriptionFunction DiagramsPhase Failure Detection (U measured < 0.7 x nominal supply voltage)Control of Overvoltage and UndervoltageLegend
Un Nominal supply voltage
Tt1 Overvoltage threshold delay (adjustable on front panel from 0.3 s to 30 s)
Tt2 Undervoltage threshold delay (adjustable on front panel 0.3 s to 30 s)
U> Overvoltage threshold
U< Undervoltage threshold
L1, L2, L3 Phases of the supply voltage monitored
11-12, 11-14 R1 output relay connections (refer to Connections and Schema)
21-22, 21-24 R2 output relay connections (refer to Connections and Schema)
Relay status: black color = energized.