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Square D PXF36900LSZ - Molded Case 900A 600V 3-Pole

Square D
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Square D PXF36900LSZ is a Micrologic family molded case circuit breaker designed for solid-state overload and short-circuit protection in three-phase power distribution systems. Rated at 600V and 900A, this three-pole bolt-on breaker provides LS (Long-Time and Short-Time) protection functions with a 100kA interrupting capacity at 480V. Housed in a PX frame weighing 90 lb, the unit features solid-state trip technology for precise coordination and selective tripping. It complies with applicable UL and NEMA standards for industrial electrical systems. Typical applications include main and feeder protection in commercial and industrial switchboards, panelboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case, Solid State
  • Voltage Rating: 600V
  • Current Rating: 900A
  • Dimensions: PX Frame
  • Standards: UL, NEMA
  • Applications: Main and feeder protection in industrial switchboards, panelboards, motor control centers
  • Switch Type: Circuit Breaker
  • Configuration: Three-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: LS - Long-Time and Short-Time
  • 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: Not specified
  • 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, NEMA
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Bolt-On
  • Frequency Rating: Not specified
  • Phase Connection: Three-Phase
  • Standards: UL, NEMA
  • Compatible Frames: PX Frame
  • Installation Type: Panelboard/Switchboard
  • 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 available
  • GTIN: Not available