LRD350

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LRD350

TeSys Deca, thermal overload relay, 37 to 50 A, class 10A, EVERLINK

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TeSys LRD overload relays are designed to be used with TeSys D contactors to make a motor starter. This overload relay can be used with 40 amp through 65 amp TeSys D contactors. These differential thermal overload relays detect over currents in the lines to the motor. When an overcurrent is detected the overload relay working with the contactor will disconnect the power to the motor. This will minimize the damage to the motor windings. This overload relay has an adjustable trip current rating of 37 to 50 amperes. This trip current rating is calibrated per Class 10A. This overload relay uses EVERLINK termnals in place of the standard terminals.

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Specification	Value
Network Frequency	0...400 Hz
Height	70 mm
[Ith] Conventional Free Air Thermal Current	5 A signalling circuit
Auxiliary Contact Composition	1 NO + 1 NC
Connections - Terminals	control circuit screw clamp terminals 2 1-2.5 mm² flexible without cable end \|\| control circuit screw clamp terminals 2 1-2.5 mm² flexible with cable end \|\| control circuit screw clamp terminals 2 1-2.5 mm² solid without cable end \|\| power circuit EverLink BTR screw connectors 1 1-35 mm² flexible without cable end \|\| power circuit EverLink BTR screw connectors 1 1-35 mm² flexible with cable end \|\| power circuit EverLink BTR screw connectors 1 1-35 mm² solid without cable end
Phase Failure Sensitivity	tripping current 130 % of Ir on two phase, the last one at 0
[Ue] Rated Operational Voltage	690 V AC 0...400 Hz power circuit IEC 60947-4-1
Associated Fuse Rating	4 A gG for signalling circuit \|\| 4 A BS for signalling circuit
Net Weight	0.375 kg
[Uimp] Rated Impulse Withstand Voltage	6 kV
Permissible Current	0.95 A 380 V AC-15 signalling circuit \|\| 0.06 A 440 V DC-13 signalling circuit
Tripping Threshold	1.14 +/- 0.06 Ir IEC 60947-4-1
Tightening Torque	control circuit 1.7 N.m screw clamp terminals \|\| power circuit 5 N.m EverLink BTR screw connectors
Control Type	Red push-button stop \|\| Blue push-button reset
Mounting Support	plate, with specific accessories \|\| rail, with specific accessories \|\| under contactor
Width	55 mm
Depth	123 mm
Temperature Compensation	-20-60 °C
Network Type	DC \|\| AC
Thermal Protection Adjustment Range	37-50 A
Relay Application	motor protection
Product Or Component Type	differential thermal overload relay
Product Name	TeSys LRD \|\| TeSys Deca
Thermal Overload Class	class 10A IEC 60947-4-1
Range	TeSys \|\| TeSys Deca
[Ui] Rated Insulation Voltage	power circuit 600 V CSA \|\| power circuit 600 V UL \|\| power circuit 690 V IEC 60947-4-1
Product Compatibility	LC1D65A \|\| LC1D50A \|\| LC1D40A
Device Short Name	LRD

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