LRD08 is a TeSys LRD motor thermal overload relay from Schneider Electric for use with a TeSys D contactor.

It protects 1.1-1.5kW motors at 400V with a thermal control range of 2.5-4A, a trip class of 10A, and phase imbalance protection. It consists of manual test & reset buttons, automatic reset, auxiliary trip contact and mechanical indicator. Available worldwide, it is certified to various standards (IEC, UL, CSA, CCC, EAC, for use in marine environments) and is Green Premium (RoHS/REACH) compliant.

Advantages:

• Thermal protection relay, bimetallic type, with phase imbalance (differential) protection
• Direct mounting on the lower terminals of a TeSys LC1D09-D38 contactor to form a compact starter
• Lightweight and compact, 45 mm wide
• Temperature compensation for good protection accuracy
• Manual control with test & reset buttons, manual/automatic reset switch
• Environmentally friendly product performance
  
  
  

Other technical features:

• Trip threshold: 1.14 +/-0.06 Ir complying with IEC 60947-4-1
• Phase-loss sensitivity: Trip current 130 % Ir on two phases, the last one at 0
• Control type: Red button: stop - Blue button: reset
• Product weight: 0.124 kg
• Protection treatment: TH complying with IEC 60068
• Degree of protection: IP20 complying with IEC 60529
• Operating ambient temperature: -20...60 °C without reduction complies with IEC 60947-4-1
• Storage temperature: -60...70 °C
• Temperature compensation: -20...60 °C
• Fire resistance: V1 in accordance with UL 94
• Dielectric strength: 1.89 kV at "50 Hz" complying with IEC 60947-1
• Conventional thermal current in air [Ith]: 5A per signaling circuit
• Thermal overload trip class: Class 10A complying with IEC 60947-4-1
  
  

Product compatibility:

• LC1D12
• LC1D09
• LC1D25
• LC1D38
• LC1D32
• LC1D18
  
  

Mounting bracket:

• Plate, with specific accessories
• Rail, with specific accessories
• Under the contactor
  
  

Mechanical robustness:

• Vibration: 6 Gn complying with IEC 60068-2-6
• Shock: 15 Gn for 11 ms complying with IEC 60068-2-7
  
  

Allowable current:

• 3 A at 120 V AC-15 per signaling circuit
• 0.22 A at 125 V DC-13 per signaling circuit
  
  
  

Associated fuse rating:

• 4 A gG for signaling circuit
• 4 A BS for signaling circuit
  
  

Connections-clamps:

• Control circuit: screw clamp terminals 2 cables 1...2.5 mm² flexible without cable termination
• Control circuit: screw terminals 2 cables 1...2.5 mm² flexible with cable termination
• Control circuit: screw clamp terminals 2 cables 1...2.5 mm² solid without cable termination
• Power circuit: screw clamp terminals 1 wire 1.5...10 mm² flexible without cable termination
• Power circuit: screw terminals 1 cables 1...4 mm² flexible with cable termination
• Power circuit: screw clamp terminals 1 cables 1...6 mm² solid without cable termination
  
  

Tightening torque:

• Control circuit: 1.7 Nm - on screw clamp terminals
• Power circuit: 1.7 Nm - on screw clamping terminals
  
  
  

Dimensions:

• Height 66 mm
• Width 45 mm
• Depth 70 mm
  
  

Reference 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
• BV
• RINA
• DNV-GL
• LROS (Lloyds Register of shipping)
• ATEX INERIS
• UKCA