Complementary
Network frequency	0...400 Hz
Mounting support	Plate, with specific accessories; Rail, with specific accessories; Under contactor
Tripping threshold	1.14 +/- 0.06 Ir conforming to IEC 60947-4-1
Auxiliary contact composition	1 NO + 1 NC
[Ith] conventional free air thermal current	5 A for signalling circuit
Permissible current	3 A at 120 V AC-15 for signalling circuit; 0.22 A at 125 V DC-13 for signalling circuit
[Ue] rated operational voltage	690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1
Associated fuse rating	4 A gG for signalling circuit; 4 A BS for signalling circuit
[Uimp] rated impulse withstand voltage	6 kV
Phase failure sensitivity	Tripping current 130 % of Ir on two phase, the last one at 0
Control type	Red push-button: stop; Blue push-button: reset
Temperature compensation	-20…60 °C
Tightening torque	Control circuit: 1.7 N.m - on screw clamp terminals; Power circuit: 5 N.m - on EverLink BTR screw connectors
Height	70 mm
Width	55 mm
Depth	123 mm
Net weight	0.375 kg
Contractual warranty
Warranty (in months)	18
Environment
Climatic withstand	conforming to IACS E10
IP degree of protection	IP20 conforming to IEC 60529
Ambient air temperature for operation	-20…60 °C without derating conforming to IEC 60947-4-1
Ambient air temperature for storage	-60…70 °C
Flame retardance	V1 conforming to UL 94
Mechanical robustness	Shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7; Vibrations: 4 gn conforming to IEC 60068-2-6
Dielectric strength	1.89 kV at 50 Hz conforming to IEC 60947-1
Standards	EN/IEC 60947-4-1; EN/IEC 60947-5-1; UL 60947-4-1; UL 60947-5-1; CSA C22.2 No 60947-4-1; CSA C22.2 No 60947-5-1; GB/T 14048.4; GB/T 14048.5
Product certifications	IEC; UL; CSA; CCC; EAC; DNV-GL; RMRS; EU-RO MR; LROS (Lloyds register of shipping); UKCA
Logistical informations
Country of origin	FR
Main
Range	TeSys; TeSys Deca
Product name	TeSys LRD; TeSys Deca
Product or component type	Differential thermal overload relay
Device short name	LRD
Relay application	Motor protection
Product compatibility	LC1D50A; LC1D65A; LC1D40A
Network type	AC; DC
Thermal overload class	Class 20 conforming to IEC 60947-4-1
Thermal protection adjustment range	30…40 A
[Ui] rated insulation voltage	Power circuit: 600 V conforming to CSA; Power circuit: 600 V conforming to UL; Power circuit: 690 V conforming to IEC 60947-4-1
Packing Units
Unit Type of Package 1	PCE
Number of Units in Package 1	1
Package 1 Height	6.200 cm
Package 1 Width	10.500 cm
Package 1 Length	13.600 cm
Package 1 Weight	410.000 g
Unit Type of Package 2	S02
Number of Units in Package 2	13
Package 2 Height	15.000 cm
Package 2 Width	30.000 cm
Package 2 Length	40.000 cm
Package 2 Weight	5.637 kg

Motor protection relays 0.06 -75 kW Thermal overload relays TeSys LRD are extremely reliable and cover the entire motor range up to 150 A. They have a manual-automatic reset and are available with different terminal variants. In combination with TeSys D they become an extremely compact starter.