TeSys LRD thermal overload relays - 48...65 A - class 10A

LRD365
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Description

TeSys LRD thermal overload relay, 65A/690V, thermal setting range 48-65A, tripping class 10A, for protection of 3-phase motors 30kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustement dial, a manual-automatic reset selector, a test selector for simulation of a tripping, reset and stop buttons, a flag indicator and 2 auxiliary contacts 1NO+1NC for fault signalling. Settings are protected by a transparent cover lockable by sealing. Connection by EverLink BTR screw terminals , it connects directly to the bottom terminals of 3-pole contactors LC1D40A-D80A. Mounting on DIN rail or screw fixing, separated from the contactor, with use of a terminal block LAD96560 (to be ordered separately). Multi standards certified (IEC, UL, CSA, CCC, EAC, Marine), Green Premium compliant (RoHs/Reach).

Product Details

[ue] Rated Operational Voltage 690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1
[ui] Rated Insulation Voltage power circuit: 600 V conforming to CSA
[uimp] Rated Impulse Withstand Voltage 6 kV
Ambient Air Temperature for Operation -20-60 °C without derating conforming to IEC 60947-4-1
Ambient Air Temperature for Storage -60-70 °C
Climatic Withstand conforming to IACS E10
Compatibility Code LRD
Control Type red push-button: stop
Depth 123 mm
Device Short Name LRD
Dielectric Strength 1.89 kV at 50 Hz conforming to IEC 60947-1
Flame Retardance V1 conforming to UL 94
Height 70 mm
Ip Degree of Protection IP20 conforming to IEC 60529
Mechanical Robustness shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7
Mounting Support plate, with specific accessories
Net Weight 0.375 kg
Network Frequency 0...400 Hz
Network Type DC
Product Certifications IEC
Product Compatibility LC1D65A
Product Name TeSys LRD
Product or Component Type differential thermal overload relay
Range TeSys
Standards EN/IEC 60947-4-1
Tightening Torque control circuit: 1.7 N.m - on screw clamp terminals
Width 55 mm
Connections - Terminals control circuit: screw clamp terminals 2 cable(s) 1-2.5 mm² flexible without cable end
[ith] Conventional Free Air Thermal Current 5 A for signalling circuit
Associated Fuse Rating 4 A gG for signalling circuit
Auxiliary Contact Composition 1 NO + 1 NC
Permissible Current 0.95 A at 380 V AC-15 for signalling circuit
Phase Failure Sensitivity tripping current 130 % of Ir on two phase, the last one at 0
Relay Application motor protection
Temperature Compensation -20-60 °C
Thermal Overload Class class 10A conforming to IEC 60947-4-1
Thermal Protection Adjustment Range 48-65 A
Tripping Threshold 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1

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