- Reason for Substitution: End of life
- Substitution date: 05 July 2016
Main range of productZelio Control product or component typeIndustrial measurement and control relays relay typeControl relay product specific applicationFor 3-phase supply relay nameRM4-T relay monitored parametersAsymmetryPhase failure detectionPhase sequence time delayAdjustable 0.1...10 s measurement range290...484 V contacts type and composition2 C/O poles description3P Complementary maximum switching voltage440 V AC output contacts2 C/O setting accuracy of the switching threshold+/-3 % switching threshold drift<= 0.06 % per degree centigrade depending permissible ambient air temperature<= 0.5 % within the measuring range setting accuracy of time delay10 P time delay drift<= 0.07 % per degree centigrade depending on the rated operational temperature<= 0.5 % within the measuring range hysteresis50 % fixed of asymmetry percentage delay at power up< 650 ms measuring cycle<= 80 ms adjustment of asymmetry threshold5...15 % markingCE overvoltage categoryIII conforming to IEC 60664-1 [Ui] rated insulation voltage500 V conforming to IEC supply frequency50/60 Hz +/- 5 % operating positionAny position without connections - terminalsScrew terminals 2 x 1.5 mm², flexible cable with cable endScrew terminals 2 x 2.5 mm², flexible cable without cable end tightening torque0.6...1.1 N.m mechanical durability<= 30000000 cycles [Ith] conventional free air thermal current8 A [Ie] rated operational current2 A at 70 °C 24 V DC-13 conforming to IEC 60947-5-1/19912 A at 70 °C 24 V DC-13 conforming to VDE 06603 A at 70 °C 115 V AC-15 conforming to IEC 60947-5-1/19913 A at 70 °C 115 V AC-15 conforming to VDE 06603 A at 70 °C 24 V AC-15 conforming to IEC 60947-5-1/19913 A at 70 °C 24 V AC-15 conforming to VDE 06603 A at 70 °C 250 V AC-15 conforming to IEC 60947-5-1/19913 A at 70 °C 250 V AC-15 conforming to VDE 06600.1 A at 70 °C 250 V DC-13 conforming to IEC 60947-5-1/19910.1 A at 70 °C 250 V DC-13 conforming to VDE 06600.3 A at 70 °C 115 V DC-13 conforming to IEC 60947-5-1/19910.3 A at 70 °C 115 V DC-13 conforming to VDE 0660 switching capacity in mA10 mA at 12 V switching voltage250 V AC contacts material90/10 silver nickel contacts number of cables2 height78 mm width22.5 mm depth80 mm terminals description ISO n°1(15-16-18)OC(25-26-28)OC(L1-L2-L3)CO output relay stateTripped, fault present 9 mm pitches2.5 product weight0.11 kg time delay on de-energisation0.1...10 s Environment electromagnetic compatibilityElectrostatic discharge - test level 6 kV, level 3 - contact discharge conforming to IEC 61000-4-2Electrostatic discharge - test level 8 kV, level 3 - air discharge conforming to IEC 61000-4-2Resistance to electrostatic discharge - test level 6 kV - contact conforming to IEC 61000-4-2 level 3Resistance to electrostatic discharge - test level 8 kV - air conforming to IEC 61000-4-2 level 3 standardsEN/IEC 60255-6 product certificationsCSAGLUL directives89/336/EEC - electromagnetic compatibility73/23/EEC - low voltage directive ambient air temperature for storage-40...85 °C ambient air temperature for operation-20...65 °C relative humidity15...85 % 3K3 conforming to IEC 60721-3-3 vibration resistance0.35 ms (f = 10...55 Hz) conforming to IEC 60068-2-6 shock resistance15 gn for 11 ms conforming to IEC 60068-2-27 IP degree of protectionIP20 (terminals) conforming to IEC 60529IP50 (casing) conforming to IEC 60529 pollution degree3 conforming to IEC 60664-1 dielectric test voltage2.5 kV non-dissipating shock wave4.8 kV resistance to electrostatic discharge6 kV contact conforming to IEC 61000-4-2 level 38 kV air conforming to IEC 61000-4-2 level 3 resistance to electromagnetic fields10 V/m conforming to IEC 61000-4-3 level 3 resistance to fast transients2 kV conforming to IEC 61000-4-4 level 3 disturbance radiated/conductedCISPR 11 group 1 - class ACISPR 22 - class A Contractual warranty Warranty period18 months
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Dimensions Drawings3-phase Supply Control RelaysDimensions
Mounting and Clearance3-phase Supply Control RelaysRail mountingScrew fixing
Connections and Schema3-Phase Supply Control RelaysWiring DiagramL1, L2, L3Supply to be monitored15-18, 15-161st C/O contact of the output relay25-28, 25-262nd C/O contact of the output relayApplication SchemeExample(1)Fault
Performance CurvesElectrical Durability and Load Limit CurvesAC Load
Curve 1: Electrical durability of contacts on resistive load in millions of operating cyclesXCurrent broken in AYMillions of operating cycles
Curve 2: Reduction factor k for inductive loads (applies to values taken from durability Curve 1)XPower factor on breaking (cos φ)YReduction factor KDC Load
Load limit curveXCurrent in AYVoltage in V1L/R = 20 ms2L/R with load protection diode3Resistive load
Technical DescriptionFunction DiagramDetection of Phase AsymmetryLegend
t Time delay
(1) Asymmetry > set threshold
15/18, 15/16; 25/28, 25/26 Output relays connections
Relay status: black color = energized.