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Square D LAP26400MB - Molded Case 400A 600V 2-Pole

Square D
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Square D LAP26400MB is a molded case circuit breaker from Schneider Electric's LAP Series, designed for thermal magnetic protection in industrial power distribution systems. This 2-pole, 400A unit operates at 600VAC with a 30kA interrupting capacity at 480V, featuring long time and instantaneous trip functions for precise overcurrent protection. The bolt-on breaker measures 11 in (279.4 mm) x 6 in (152.4 mm) x 5.84 in (148.34 mm), weighs 14.149 lb, and accepts wire sizes from AWG 1 to 250/600KCmil aluminum or copper via lug terminals. It is UL Listed, IEC, and CSA certified, compliant with industry standards for safety and reliability. Typical applications include commercial and industrial panelboards, switchboards, and motor control centers requiring robust, single-phase circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, LAP Series, Thermal Magnetic Protection
  • Voltage Rating: 600VAC
  • Current Rating: 400A
  • Dimensions: 11 in (279.4 mm) x 6 in (152.4 mm) x 5.84 in (148.34 mm) (Height x Width x Depth)
  • Standards: UL Listed, IEC, CSA
  • Applications: Commercial and industrial panelboards, switchboards, motor control centers
  • Switch Type: Bolt-On
  • Configuration: 2-Pole, 1-Phase
  • Coil Voltage Maximum: Not applicable (thermal magnetic)
  • Temp Rating: Not specified
  • Shipping Dimensions: Not specified
  • Phase: 1
  • Voltage: 600V
  • Amperage: 400A
  • AIC rating: 30kA@480V
  • Connection: Bolt-On
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: A
  • Trip Type: Thermal Magnetic
  • Panel Type: Not specified
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: 250/600KCmil
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: Not specified
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Bolt-On
  • Hz: 50/60 Hz (assumed)
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: 400A
  • Dist Voltage: 600V
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 400A
  • Full Load Amp Minimum: 400A
  • Enclosure: Not specified
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: AWG 1 to 250/600KCmil
  • Amperage Maximum: 400A
  • Amperage Minimum: 400A
  • Nema Rating: Not specified
  • Switch Style: Bolt-On
  • Wire Size: AWG 1 to 250/600KCmil Aluminum/Copper
  • Certification: UL Listed, IEC, CSA
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Lug, Terminal
  • Frequency Rating: 50/60 Hz (assumed)
  • Phase Connection: 1-Phase
  • Standards: UL Listed, IEC, CSA
  • Compatible Frames: A Frame
  • Installation Type: Bolt-On
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: A
  • Current Rating: 400A
  • 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: Not specified
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 078590153002
  • GTIN: 00785901530022