Description
Main
Range TeSys
Product name TeSys LRD
TeSys Deca
Product or component type Differential thermal overload relay
Device short name LRD
Relay application Motor protection
Product compatibility LC1D80
LC1D95
Network type DC
AC
Thermal overload class Class 10A conforming to IEC 60947-4-1
Thermal protection adjustment range 17…25 A
[Ui] rated insulation voltage Power circuit: 1000 V conforming to IEC 60947-4-1
Power circuit: 600 V conforming to CSA
Power circuit: 600 V conforming to UL
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 0.72 A at 500 V AC-15 for signalling circuit
0.06 A at 440 V DC-13 for signalling circuit
[Ue] rated operational voltage 1000 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 conforming to IEC 60947-1
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
Connections – terminals Power circuit: screw clamp terminals 1 cable(s) 4…35 mm2 flexible without ca-
ble end
Power circuit: screw clamp terminals 1 cable(s) 4…35 mm2 flexible with ca-
ble end
Power circuit: screw clamp terminals 1 cable(s) 4…35 mm2 solid without ca-
ble end
Control circuit: screw clamp terminals 2 cable(s) 1…2.5 mm2 flexible without ca-
ble end
Control circuit: screw clamp terminals 2 cable(s) 1…2.5 mm2 flexible with ca-
ble end
Control circuit: screw clamp terminals 2 cable(s) 1…2.5 mm2 solid without ca-
ble end
Tightening torque Control circuit: 1.7 N.m – on screw clamp terminals
Power circuit: 9 N.m – on screw clamp terminals
Height 81 Mm
Width 70 Mm
Depth 115 Mm
Net weight 0.51 Kg
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 Vibrations: 6 Gn conforming to IEC 60068-2-6
Shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7
Dielectric strength 2.2 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
EN 50495
Product certifications IEC[RETURN]UL[RETURN]CSA[RETURN]CCC[RETURN]EAC[RETURN]A-
TEX INERIS[RETURN]UKCA
