Schneider TeSys LRD thermal overload relays 80 -104 A – class 10A

  • It provides a thermal adjustment dial, a manual-automatic reset selector acting also as a reset button, a trip test button for simulation of tripping, a stop button, a flag indicator, and 2 auxiliary contacts 1NO+1NC for fault signaling.
  • Settings are protected by a transparent cover lockable by sealing.
  •  Connection by screw clamp terminals, it connects directly to the bottom terminals of 3-pole contactors LC1D80-D95.
  •  Mounting on DIN rail or screw fixing, separated from the contactor, with the use of a terminal block LA7D3064 (to be ordered separately).
  • Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine), Green Premium compliant (RoHs/Reach).
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Description

  • Product name: TeSys LRD
  • Product or component type: Differential thermal overload relay
  • device short name: LRD
  • Relay application: Motor protection
  • Product Compatibility: LC1D95, LC1D80
  • Network type: AC, DC
  • Thermal overload class: Class 10A conforming to IEC 60947-4-1
  • Thermal protection adjustment range: 80-104 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
  • 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 the signalling circuit, 0.06 A at 440 V DC-13 for the 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 cable end
  • Power circuit: screw clamp terminals 1 cable(s) 4…35 mm² flexible with cable end
  • Power circuit: screw clamp terminals 1 cable(s) 4…35 mm² solid without cable end
  • 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
  • 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 retardancy
  • 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