LRD3357 Schneider

Product data sheet LRD3357 Characteristics TeSys LRD thermal overload relays - 37...50 A - class 10A 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 LC1D80 LC1D95 Network type AC DC Thermal protection adjustment range 37...50 A Ui rated insulation voltage 1000 V power circuit conforming to IEC 60947-4-1 600 V power circuit conforming to CSA 600 V power circuit 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 Ith conventional free air thermal 5 A for signalling circuit current 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 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 for reset mode Temperature compensation -20...60 C Dec 28, 2017 1 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 applicationsConnections - terminals Power circuit : screw clamp terminals 1 cable(s) 4...35 mm - cable stiffness: flexible - without cable end Power circuit : screw clamp terminals 1 cable(s) 4...35 mm - cable stiffness: flexible - with cable end Power circuit : screw clamp terminals 1 cable(s) 4...35 mm - cable stiffness: solid - without cable end Control circuit : screw clamp terminals 2 cable(s) 1...2.5 mm - cable stiffness: flexible - without cable end Control circuit : screw clamp terminals 2 cable(s) 1...2.5 mm - cable stiffness: flexible - with cable end Control circuit : screw clamp terminals 2 cable(s) 1...2.5 mm - cable stiffness: solid - without cable end Tightening torque Control circuit : 1.7 N.m - on screw clamp terminals Power circuit : 9 N.m - on screw clamp terminals Height 123 mm Width 75 mm Depth 121 mm Product weight 0.51 kg Environment Protective treatment TH conforming to IEC 60068 IP degree of protection IP20 conforming to IEC 60529 Ambient air temperature for operation 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 IEC 60068-2-6 Shocks 15 Gn for 11 ms IEC 60068-2-7 Dielectric strength 6 kV at 50 Hz conforming to IEC 60255-5 Standards CSA C22.2 No 14 EN 60947-5-1 EN 60947-4-1 IEC 60947-4-1 IEC 60947-5-1 UL 508 ATEX D 94/9/CE Product certifications CSA GL UL RINA GOST LROS (Lloyds register of shipping) CCC BV ATEX INERIS DNV Offer Sustainability Sustainable offer status Green Premium product RoHS (date code: YYWW) Compliant - since 0849 - Schneider Electric declaration of conformity Schneider Electric declaration of conformity REACh Reference not containing SVHC above the threshold Reference not containing SVHC above the threshold Product environmental profile Available Product environmental Product end of life instructions Available End of life manual Contractual warranty Warranty period 18 months 2