Product data sheet LRD350
Characteristics TeSys LRD thermal overload relays - 37...50 A -
class 10A
Disclaimer: This documentation is not intended as a substitute for and is not to be used for determining suitability or reliability of these products for specific user applications
Main
Range TeSys
Product name TeSys LRD
Product or component type Differential thermal overload relay
Device short name LRD
Relay application Motor protection
Product compatibility LC1D65A
LC1D50A
LC1D40A
Network type DC
AC
Thermal protection adjustment range 37…50 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
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
[Ith] conventional free air thermal 5 A for signalling circuit
current
Permissible current 0.95 A at 380 V AC-15 for signalling circuit
0.06 A at 440 V DC-13 for signalling circuit
[Ue] rated operational voltage 690 V AC 0...400 Hz
[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
Oct 16, 2019
1
Temperature compensation -20…60 °C
Connections - terminals Control circuit: screw clamp terminals 2 cable(s) 1…2.5 mm² flexible without cable end
Control circuit: screw clamp terminals 2 cable(s) 1…2.5 mm² flexible with cable end
Control circuit: screw clamp terminals 2 cable(s) 1…2.5 mm² solid without cable end
Power circuit: EverLink BTR screw connectors 1 cable(s) 1…35 mm² flexible without cable end
Power circuit: EverLink BTR screw connectors 1 cable(s) 1…35 mm² flexible with cable end
Power circuit: EverLink BTR screw connectors 1 cable(s) 1…35 mm² solid without cable end
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
Environment
Protective treatment TH conforming to IEC 60068
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 6 kV at 50 Hz conforming to IEC 60255-5
Standards UL 508
CSA C22.2 No 14
IEC 60947-5-1
EN 60947-5-1
ATEX D 94/9/CE
IEC 60947-4-1
EN 60947-4-1
Product certifications UL
GL
BV
CCC
ATEX INERIS
RINA
DNV
GOST
CSA
LROS (Lloyds register of shipping)
Offer Sustainability
Sustainable offer status Green Premium product
REACh Regulation REACh Declaration
REACh free of SVHC Yes
EU RoHS Directive Under investigation
Toxic heavy metal free Yes
Mercury free Yes
RoHS exemption information Yes
China RoHS Regulation China RoHS declaration
Environmental Disclosure Product Environmental Profile
Circularity Profile End of Life Information
Contractual warranty
Warranty 18 months
