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Schneider Electric LR3D04 - Overload Relay 0.4-0.63A (TeSys D)

Schneider Electric
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Schneider Electric LR3D04 Motor Control is a thermal overload relay from the TeSys D family, designed to protect AC motors against overload, phase failure, and phase imbalance. It operates with a current rating range of 0.4 to 0.63 A and is suitable for use in three-phase systems. The relay measures 2.6 in (66 mm) in height, 1.8 in (45 mm) in width, and 2.8 in (70 mm) in depth, weighing 0.304 lb, and features a compact, modular construction for direct mounting on contactors. It complies with international standards including IEC, UL, CSA, CCC, EAC, BV, RINA, DNV-GL, LROS, ATEX, INERIS, and UKCA, ensuring broad global acceptance. Typical industrial applications include motor protection in conveyors, pumps, fans, and compressors within manufacturing, processing, and automation environments.

Key Features & Specifications
  • Type: Thermal overload relay, bimetallic strip operation
  • Voltage Rating: Up to 690 V AC
  • Current Rating: 0.4 to 0.63 A
  • Dimensions: 2.6 in (66 mm) x 1.8 in (45 mm) x 2.8 in (70 mm) (Height x Width x Depth)
  • Standards: IEC, UL, CSA, CCC, EAC, BV, RINA, DNV-GL, LROS, ATEX, INERIS, UKCA
  • Applications: Motor protection for conveyors, pumps, fans, compressors
  • Switch Type: Thermal overload relay
  • Configuration: Three-phase
  • Coil Voltage Maximum: Not applicable (thermal relay)
  • Temp Rating: -20°C to +60°C
  • Shipping Dimensions: 2.6 in x 1.8 in x 2.8 in
  • Phase: Three-phase
  • Voltage: Up to 690 V AC
  • Amperage: 0.4 to 0.63 A
  • AIC rating: Not applicable
  • Connection: Screw terminals
  • Poles: 3
  • Protection: Overload, phase failure, phase imbalance
  • Functions: Motor protection
  • Frame Size: TeSys D
  • Trip Type: Thermal (bimetallic)
  • Panel Type: Not applicable
  • Breaker Type: Not applicable
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Not applicable
  • Panel Style: Not applicable
  • Bus Type: Not applicable
  • Fuse Class: Not applicable
  • Insulation Temperature: Not specified
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Class 10
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Direct on contactor
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: 1 NO + 1 NC
  • CPT: Not applicable
  • Full Load Amps: 0.4 to 0.63 A
  • Dist Voltage: Not applicable
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 0.63 A
  • Full Load Amp Minimum: 0.4 A
  • Enclosure: Open style
  • Relay Style: Thermal overload
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper
  • Amperage Maximum: 0.63 A
  • Amperage Minimum: 0.4 A
  • Nema Rating: Not applicable
  • Switch Style: Not applicable
  • Wire Size: 14-22 AWG
  • Certification: IEC, UL, CSA, CCC, EAC, BV, RINA, DNV-GL, LROS, ATEX, INERIS, UKCA
  • Circuit Breaker Mounting Style: Not applicable
  • Terminal Connection: Screw
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Three-phase
  • Standards: IEC 60947-4-1, UL 508, CSA C22.2 No. 14
  • Compatible Frames: TeSys D contactors
  • Installation Type: Panel mount
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: Not applicable
  • Current Rating: 0.4 to 0.63 A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not applicable
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: +60°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 038911034690
  • GTIN: 03389110346909