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Square D PXF36900LI - Molded Case 900A 600V 3-Pole

Square D
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Square D PXF36900LI is a 3-pole molded case circuit breaker from the Micrologic family, designed for solid-state overcurrent protection with Long-Time and Instantaneous (LI) trip functions. It is rated for 900A continuous current at 600VAC, with an interrupting capacity of 100kA at 480VAC in a 3-phase system. The unit features a PX Frame, bolt-on connection, and weighs 90 lb, constructed for robust industrial environments. This breaker complies with applicable UL and NEMA standards for low-voltage power distribution. It is typically used in commercial and industrial switchboards, panelboards, and motor control centers requiring precise solid-state protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Protection
  • Voltage Rating: 600V
  • Current Rating: 900A
  • Dimensions: PX Frame
  • Standards: UL, NEMA
  • Applications: Industrial switchboards, panelboards, motor control centers
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: Not specified
  • Shipping Dimensions: Not specified
  • Phase: 3
  • Voltage: 600V
  • Amperage: 900A
  • AIC rating: 100kA@480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Solid State
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: PX Frame
  • Trip Type: Solid State
  • Panel Type: Not specified
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • 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: Bolt-On
  • Hz: 50/60
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • 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 applicable
  • Wire: Not specified
  • Amperage Maximum: 900A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not specified
  • Wire Size: Not specified
  • Certification: UL
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Bolt-On
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL, NEMA
  • Compatible Frames: PX Frame
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: PX
  • Current Rating: 900A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • 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: Not specified
  • GTIN: Not specified