
RM4LG01Q
liquid level control relay RM4-L - 380..415 V AC
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Characteristics
Main range of product Zelio Controlproduct or component type Industrial measurement and control relaysrelay type Liquid level control relayrelay name RM4-Lrelay monitored parameters Detection by resistive probestime delay Withoutpower consumption 2.9 VA ACcontacts type and composition 1 C/OComplementary maximum switching voltage 440 V AC[Un] rated nominal voltage 380...415 V AC 50/60 Hz +/- 5 %operating voltage tolerance 0.85...1.1 Ucoutput contacts 1 C/Omaximum electrode voltage 24 V ACmaximum electrode current 1 mAmaximum cable capacity 0 mFmaximum cable distance between devices 328.08 ft (100 m)sensitivity scale 5...100 kOhmmarking CE : LVD 73/23/EECCE : EMC 89/336/EECovervoltage category III IEC 60664-1[Ui] rated insulation voltage 500 V IECsupply disconnection value > 0.1 Ucoperating position Any position withoutconnections - terminals Screw terminals, 2 x 1.5 mm²flexible with cable endScrew terminals, 2 x 2.5 mm²flexible without cable endtightening torque 5.31…9.74 lbf.in (0.6…1.1 N.m)mechanical durability 30000000 cycles[Ith] conventional free air thermal current 8 A[Ie] rated operational current 2 A 158 °F (70 °C) 24 V DC-13 IEC 60947-5-1/19912 A 158 °F (70 °C) 24 V DC-13 VDE 06603 A 158 °F (70 °C) 115 V AC-15 IEC 60947-5-1/19913 A 158 °F (70 °C) 115 V AC-15 VDE 06603 A 158 °F (70 °C) 24 V AC-15 IEC 60947-5-1/19913 A 158 °F (70 °C) 24 V AC-15 VDE 06603 A 158 °F (70 °C) 250 V AC-15 IEC 60947-5-1/19913 A 158 °F (70 °C) 250 V AC-15 VDE 06600.1 A 158 °F (70 °C) 250 V DC-13 IEC 60947-5-1/19910.1 A 158 °F (70 °C) 250 V DC-13 VDE 06600.3 A 158 °F (70 °C) 115 V DC-13 IEC 60947-5-1/19910.3 A 158 °F (70 °C) 115 V DC-13 VDE 0660switching capacity in mA 10 mA 12 Vswitching voltage 250 V ACcontacts material 90/10 silver nickel contactsnumber of cables 2width 0.89 in (22.5 mm)terminals description ISO n°1 (B1-B2-B3)CO(A1-A2)CO(15-16-18)OCoutput relay state According to chosen function9 mm pitches 2.5net weight 0.36 lb(US) (0.165 kg)Environment electromagnetic compatibility Electrostatic discharge 6 kV contact discharge)level 3 IEC 61000-4-2Electrostatic discharge 8 kV air discharge)level 3 IEC 61000-4-2standards EN/IEC 60255-6product certifications GLCSAULambient air temperature for storage -40…185 °F (-40…85 °C)ambient air temperature for operation -4…149 °F (-20…65 °C)relative humidity 15…85 % 3K3 IEC 60721-3-3vibration resistance 0.35 ms 10…55 Hz)IEC 60068-2-6shock resistance 15 gn 11 ms IEC 60068-2-27IP degree of protection IP20 IEC 60529 terminals)IP50 IEC 60529 casing)pollution degree 3 IEC 60664-1dielectric test voltage 2.5 kVresistance to electrostatic discharge 6 kV contact IEC 61000-4-2 level 38 kV air IEC 61000-4-2 level 3resistance to electromagnetic fields 9.14 V/m (10 V/m) IEC 61000-4-3 level 3resistance to fast transients 2 kV IEC 61000-4-4 level 3protection against electric shocks 2 kV level 3 IEC 61000-4-5disturbance radiated/conducted CISPR 11 group 1 - class ACISPR 22 - class AOrdering and shipping details Category 22376-RELAYS-MEASUREMENT(RM4)Discount Schedule CP2GTIN 03389110334814Package weight(Lbs) 0.38 lb(US) (0.174 kg)Returnability NoCountry of origin IDContractual warranty Warranty 18 months -
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Instruction SheetFormatSizeAdd to My DocumentsRM4L... Liquid level control relays (Version 01)DescriptionNoneSize pdfSize 157.4 KBDate 4/1/00DescriptionNoneEnd of Life InformationFormatSizeAdd to My DocumentsSize pdfSize 101.8 KBDate 11/1/11Product Environmental ProfileFormatSizeAdd to My DocumentsSize pdfSize 3.3 MBDate 11/1/11 -
Technical FAQs
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Dimensions Drawings
Liquid Level Control RelaysDimensions -
Mounting and Clearance
Liquid Level Control RelaysRail mountingScrew fixing -
Connections and Schema
Liquid Level Control RelaysRM4LG01 Wiring DiagramA1-A2, B1, B2, B3Supply voltage Electrodes (see table below)15-18,15-161st C/O contact of the output relayElectrodes and level controlled
B1
Reference or tank earth electrode
B2
High level
B3
Low level
RM4LA32 Wiring DiagramA1-A2, B1, B2, B3Supply voltage Electrodes (see table below)15-18,15-161st C/O contact of the output relay25-28, 25-262nd C/O contact of the output relayElectrodes and level controlled
B1
Reference or tank earth electrode
B2
High level
B3
Low level
Connection ExamplesControl by Electrodes(1)Supply voltage(2)High level(3)Low levelControl by Probes(1)2 levels(2)1 level -
Performance Curves
Electrical Durability and Load Limit CurvesAC LoadCurve 1: Electrical durability of contacts on resistive load in millions of operating cycles
XCurrent broken in AYMillions of operating cyclesCurve 2: Reduction factor k for inductive loads (applies to values taken from durability Curve 1)
XPower factor on breaking (cos φ)YReduction factor KDC LoadLoad limit curve
XCurrent in AYVoltage in V1L/R = 20 ms2L/R with load protection diode3Resistive load -
Technical Description
Function DiagramsEmpty FunctionMaximum level detection (2 electrodes or 1 probe LA9RM201)
LegendU A1/A2 Supply voltage
B1 Reference electrode
B2 High/low level electrode
(1) Type RM4
(2) Function switch
(3) Time delay switch
15/16, 15/18; 25/26, 25/28 Output relays connections
Relay status: black color = energized.
Regulation between a maximum and a minimum level (3 electrodes or 2 probes LA9RM201)
LegendU A1/A2 Supply voltage
B1 Reference electrode
B2 High level electrode
B3 Low level electrode
(1) Type RM4
(2) Function switch
(3) Time delay switch
15/16, 15/18; 25/26, 25/28 Output relays connections
Relay status: black color = energized.
Fill FunctionMaximum level detection (2 electrodes or 1 probe LA9RM201)
LegendU A1/A2 Supply voltage
B1 Reference electrode
B2 High/low level electrode
(1) Type RM4
(2) Function switch
(3) Time delay switch
15/16, 15/18; 25/26, 25/28 Output relays connections
Relay status: black color = energized.
Regulation between a maximum and a minimum level (3 electrodes or 2 probes LA9RM201)
LegendU A1/A2 Supply voltage
B1 Reference electrode
B2 High level electrode
B3 Low level electrode
(1) Type RM4
(2) Function switch
(3) Time delay switch
15/16, 15/18; 25/26, 25/28 Output relays connections
Relay status: black color = energized.
NOTE: On RM4LA32, a time delay can be set on energization or de-energization of the output relay.