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Schneider Electric LR3D35 - Overload Relay 23-32A (Thermal Motor Protection)

Schneider Electric
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The Schneider Electric LR3D35 is a thermal overload relay designed to protect motors from overcurrent, phase failure, and prolonged starting conditions. It operates with a voltage rating of up to 690 V AC and supports a current range of 23 to 32 A, ensuring precise protection for three-phase induction motors. 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, with a weight of 0.319 lb, and features a compact, robust construction suitable for panel mounting. It complies with IEC 60947-4-1 and UL 508 standards, offering reliable performance in industrial environments. Typical applications include conveyor systems, pumps, fans, and compressors in manufacturing and process industries.

Key Features & Specifications
  • Type: Thermal overload relay, bimetallic operation
  • Voltage Rating: 690 V AC
  • Current Rating: 23 to 32 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 60947-4-1, UL 508
  • Applications: Motor protection for conveyors, pumps, fans, compressors
  • Switch Type: Manual reset
  • Configuration: Three-phase
  • Coil Voltage Maximum: Not applicable (thermal device)
  • Temp Rating: -20°C to 60°C
  • Shipping Dimensions: 3.0 in x 2.5 in x 3.5 in
  • Phase: 3
  • Voltage: 690 V AC
  • Amperage: 23 to 32 A
  • AIC rating: 50 kA at 690 V
  • Connection: Screw terminals
  • Poles: 3
  • Protection: Overload, phase failure
  • Functions: Motor protection
  • Frame Size: LRD
  • Trip Type: Thermal
  • Panel Type: Open
  • Breaker Type: Not applicable
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Steel
  • Panel Style: Standard
  • Bus Type: Not applicable
  • Fuse Class: Not applicable
  • Insulation Temperature: 85°C
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: 10A
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Panel mount
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: 15 HP at 460 V
  • Aux Contacts: 1 NO + 1 NC
  • CPT: Not included
  • Full Load Amps: 23 to 32 A
  • Dist Voltage: 690 V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 32 A
  • Full Load Amp Minimum: 23 A
  • Enclosure: Open type
  • Relay Style: Thermal
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper
  • Amperage Maximum: 32 A
  • Amperage Minimum: 23 A
  • Nema Rating: 1
  • Switch Style: Manual
  • Wire Size: 14 AWG to 4 AWG
  • Certification: CE, UL, CSA
  • 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
  • Compatible Frames: TeSys D
  • Installation Type: Panel
  • Item QTY: 1
  • Nema Starter Size: 1
  • Breaker Frame: Not applicable
  • Current Rating: 23 to 32 A
  • Reverse Standoff Voltage: Not applicable
  • Watts: 2.5 W
  • 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: 785901234432
  • GTIN: 00389110000000