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Datasheet generated 2026-10-07
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Schneider Electric differential thermal overload relay, TeSys K, 1.2...1.8A, class 10A LR2K0307

Schneider Electric · Switchgear & Protection · Overload Relays · France · se.com
Part Number
LR2K0307  ·  HS 8536.90
Schneider Electric differential thermal overload relay, TeSys K, 1.2...1.8A, class 10A LR2K0307

Schneider Electric LR2K0307 Thermal Relay 1,2-1,8A.

Technical Specifications

Manufacturer part number (MPN)LR2K0307
EAN / GTIN3389110230437
HS code8536.90
Sales unitpcs
Package quantity41 pcs
Setting range1.2-1.8 A
RangeTeSys
Product nameTeSys LRK
Product or component typeDifferential thermal overload relay
Device short nameLR2K
Relay applicationMotor protection
Product compatibilityLC1K; LP1K; LP4K; LC7K
Network typeAC; DC
Thermal overload classClass 10A conforming to IEC 60947-4-1
Thermal protection adjustment range1.2…1.8 A
[Ui] rated insulation voltagePower circuit: 690 V conforming to BS 4941; Power circuit: 690 V conforming to IEC 60947; Power circuit: 750 V conforming to VDE 0110 group C; Power circuit: 600 V conforming to CSA C22.2 No 14
Network frequency<= 400 Hz
Mounting supportUnder contactor; Plate, with specific accessories; Rail, with specific accessories
Auxiliary contact composition1 NO + 1 NC
[Ith] conventional free air thermal current6 A for signalling circuit
[Ue] rated operational voltage<= 690 V for power circuit; 690 V AC AC-15 for signalling circuit; 250 V DC DC-13 for signalling circuit
Associated fuse rating6 A gG for signalling circuit conforming to VDE 0660; 6 A gG for signalling circuit conforming to IEC 60947
[Uimp] rated impulse withstand voltage6 kV
Power dissipation per pole2 W
Phase failure sensitivityYes conforming to IEC 60947-4-1
Local signallingTrip indicator (yellow)
Control typeRed push-button: trip test function; Blue push-button: stop and manual reset; selector switch: manual or automatic reset
Connections - terminalsScrew clamp terminals 1 cable(s) 1.5…4 mm²solid; Screw clamp terminals 2 cable(s) 1.5…4 mm²solid; Screw clamp terminals 1 cable(s) 0.75…4 mm²flexible without cable end; Screw clamp terminals 2 cable(s) 0.75…4 mm²flexible without cable end; Screw clamp terminals 1 cable(s) 0.34…2.5 mm²flexible with cable end; Screw clamp terminals 2 cable(s) 0.34…1.5 mm²flexible with cable end
Tightening torque1.3 N.m - on screw clamp terminals - with screwdriver Philips No 2; 1.3 N.m - on screw clamp terminals - with screwdriver flat Ø 6 mm; 1.3 N.m - on screw clamp terminals - with screwdriver pozidriv No 2
Height58 mm
Width45 mm
Depth65 mm
Product weight0.145 kg
StandardsIEC 60947; NF C 63-650; VDE 0660; BS 4941
Product certificationsUL; CSA; UKCA
Protective treatmentTC conforming to IEC 60068; TC conforming to DIN 50016
IP degree of protectionIP2X conforming to IEC 60529
Ambient air temperature for operation-20…55 °C without derating conforming to IEC 60947; -30…60 °C with derating conforming to IEC 60947
Ambient air temperature for storage-40…70 °C
Operating altitude2000 m without derating
Fire resistance850 °C conforming to IEC 60695-2-1
Flame retardanceV1 conforming to UL 94; Requirement 2 conforming to NF F 16-101; Requirement 2 conforming to NF F 16-102
Mechanical robustnessShocks NO contact: 10 Gn for 11 ms conforming to IEC 60068-2-27; Shocks NC contact: 10 Gn for 11 ms conforming to IEC 60068-2-27; Vibrations NO contact: 2 Gn, 5...300 Hz conforming to IEC 60068-2-6; Vibrations NC contact: 2 Gn, 5...300 Hz conforming to IEC 60068-2-6
Warranty (in months)18

Properties

MOQ1

Cross-References

Attached Documents