Schneider LRD350 Thermal Overload Relays 37 – 50 A

Rp1.755.231

Main Specification

• Range:
  • TeSys
  • TeSys Deca
• Product name:
  • TeSys LRD
  • TeSys Deca
• Differential thermal overload relay
• LRD device’s short name
• Motor protection relay application
• Product compatibility:
  • LC1D40A
  • LC1D50A
  • LC1D65A
• DC & AC network type
• Thermal overload class 10A conforming to IEC 60947-4-1
• 37 – 50 A thermal protection adjustment range
• Power circuit rated insulation voltage:
  • 600 V conforming to CSA
  • 600 V conforming to UL
  • 690 V conforming to IEC 60947-4-1

Complementary

• 0 – 400 Hz network frequency
• Mounting support:
  • Plate, with specific accessories
  • Rail, with specific accessories
  • Under contactor
• 1.14 +/- 0.06 Ir tripping threshold conforming to IEC 60947-4-1
• 1 NO + 1 NC auxiliary contact composition
• 5 A conventional free air thermal current for signalling circuit
• Permissible current:
  • 0.95 A at 380 V AC-15 for signalling circuit
  • 0.06 A at 440 V DC-13 for signalling circuit
• 690 V AC 0 – 400 Hz rated operational voltage for power circuit conforming to IEC 60947-4-1
• Associated fuse rating:
  • 4 A gG for signalling circuit
  • 4 A BS for signalling circuit
• 6 kV rated impulse withstand voltage
• Tripping current 130 % of Ir on two phase, the last one at 0 phase failure sensitivity
• Control type:
  • Red push-button: stop
  • Blue push-button: reset
• -20…60 °C temperature compensation
• Control circuit, screw clamp terminals 2 cables1-2.5 mm²:
  • Flexible without cable end
  • Flexible with cable end
  • Solid without cable end
• Power circuit, EverLink BTR screw connectors 1 cable 1-35 mm²:
  • Flexible without cable end
  • Flexible with cable end
  • 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

Environment

• Climatic withstand Conforming to IACS E10
• IP20 conforming to IEC 60529
• -20…60 °C ambient air temperature for operation without derating conforming to IEC 60947-4-1
• -60…70 °C ambient air temperature for storage
• V1 flame retardance 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
• 1.89 kV at 50 Hz dielectric strength 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
  • UL
  • CSA
  • CCC
  • EAC
  • DNV-GL
  • RMRS
  • EU-RO MR
  • LROS (Lloyds register of shipping)
  • ATEX INERIS
  • UKCA

Stock Available

Schneider LRD350 Thermal Overload Relays 37 – 50 A

Schneider LRD350 Thermal Overload Relays

SKU: LRD350 Categories: Contactor, Relay Thermal Kontaktor