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Schneider Electric LA1KN31 - Auxiliary Block 690V 400A

Schneider Electric
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Schneider Electric LA1KN31 is a contactor and motor starter auxiliary block designed for industrial motor control applications, providing solid-state protection with LI (Long-Time and Instantaneous) functions. It operates at a voltage rating of 690 ACV and a current rating of 400A, with a 35kA interrupting capacity at 480V in a 3-phase, 3-pole configuration. The unit features a bolt-on connection, 3 NO + 1 NC auxiliary contacts, and compact dimensions of 1.2 in x 1.5 in x 1.4 in (30 mm x 38 mm x 35 mm), weighing 0.088 lb. It complies with multiple international standards including EN/IEC 60947-5-1, UL 60947-5-1, CSA C22.2 No 60947-5-1, GB/T 14048.5, JIS C8201-5-1, CB, CCC, CE, and UKCA. Typical industrial applications include motor starters, contactor assemblies, and control panels requiring instantaneous overcurrent protection.

Key Features & Specifications
  • Type: Contactor And Motor Starter Auxiliary
  • Voltage Rating: 690 ACV
  • Current Rating: 400A
  • Dimensions: 1.2 in (30 mm) x 1.5 in (38 mm) x 1.4 in (35 mm) (Height x Width x Depth)
  • Standards: EN/IEC 60947-5-1, UL 60947-5-1, CSA C22.2 No 60947-5-1, GB/T 14048.5, JIS C8201-5-1, CB, CCC, CE, UKCA
  • Applications: Motor starters, contactor assemblies, control panels
  • Switch Type: Instantaneous
  • Configuration: Instantaneous
  • Coil Voltage Maximum: Not specified
  • Temp Rating: Not specified
  • Shipping Dimensions: Not specified
  • Phase: 3
  • Voltage: 690 ACV
  • Amperage: 400A
  • AIC rating: 35kA@480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Solid State
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: Not specified
  • Trip Type: Instantaneous
  • Panel Type: Not specified
  • Breaker Type: Not specified
  • Control Voltage Minimum: Not specified
  • Control Voltage Maximum: Not specified
  • MCM Size: Not specified
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not specified
  • Insulation Temperature: Not specified
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not specified
  • Class Rating: Not specified
  • Diameter: Not specified
  • Velocity: Not specified
  • Clip Center: Not specified
  • Clas: Not specified
  • Mounting: Not specified
  • Hz: Not specified
  • Coil Material: Not specified
  • Horse Power: Not specified
  • Aux Contacts: 3 NO + 1 NC
  • CPT: Not specified
  • Full Load Amps: Not specified
  • Dist Voltage: Not specified
  • Bucket Size: Not specified
  • Bucket Style: Not specified
  • Bucket Type: Not specified
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: Not specified
  • Relay Style: Not specified
  • Coil Voltage Minimum: Not specified
  • Wire: Not specified
  • Amperage Maximum: Not specified
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not specified
  • Wire Size: Not specified
  • Certification: EN/IEC 60947-5-1, UL 60947-5-1, CSA C22.2 No 60947-5-1, GB/T 14048.5, JIS C8201-5-1, CB, CCC, CE, UKCA
  • Circuit Breaker Mounting Style: Not specified
  • Terminal Connection: Not specified
  • Frequency Rating: Not specified
  • Phase Connection: Not specified
  • Standards: EN/IEC 60947-5-1, UL 60947-5-1, CSA C22.2 No 60947-5-1, GB/T 14048.5, JIS C8201-5-1, CB, CCC, CE, UKCA
  • Compatible Frames: Not specified
  • Installation Type: Not specified
  • Item QTY: Not specified
  • Nema Starter Size: Not specified
  • Breaker Frame: Not specified
  • Current Rating: 400A
  • Reverse Standoff Voltage: Not specified
  • Watts: Not specified
  • Peak Pulse Current: Not specified
  • Breakdown Voltage (MIN VBR@IT ) (V): Not specified
  • Breakdown Voltage (VBR@IT) (V): Not specified
  • Polarity: Not specified
  • Operating Temperature Maximum Celsius: Not specified
  • Max Clamp Voltage: Not specified
  • On-State Current: Not specified


Product Identification
  • UPC: 785901898641
  • GTIN: 00389110500090