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Square D MJA36500YP - 500A 3-Pole Molded Case Breaker (600V)

Square D
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The Square D MJA36500YP is a 3-pole molded case circuit breaker from the Powerpact family, designed for primary overcurrent protection in industrial power distribution systems. It is rated for 500A continuous current at 600VAC, with an interrupting capacity of 65kA at 480VAC, and features solid-state trip technology with LI (Long-Time and Instantaneous) protection functions. This M Frame breaker measures 8.05 inches deep, 8.27 inches wide, and 12.86 inches high, weighing 29 lb, and utilizes an I-Line style plug-in connection for secure panel mounting. It is manufactured by Schneider Electric in the United States, complying with industry standards for molded case circuit breakers. Typical applications include main or feeder protection in commercial and industrial switchboards, panelboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Trip
  • Voltage Rating: 600VAC
  • Current Rating: 500A
  • Dimensions: Depth 8.05 in (204.47 mm), Width 8.27 in (210.06 mm), Height 12.86 in (326.64 mm)
  • Standards: UL, CSA, NEMA
  • Applications: Industrial power distribution, switchboards, panelboards
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Coil Voltage Maximum: Not applicable (solid state)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 12.86 x 8.27 x 8.05 in
  • Phase: 3
  • Voltage: 600V
  • Amperage: 500A
  • AIC rating: 65kA@480V
  • Connection: I-Line Style Plug-In
  • Poles: 3
  • Protection: LI - Long-Time and Instantaneous
  • Functions: Overcurrent protection
  • Frame Size: M Frame
  • Trip Type: Solid State
  • Panel Type: I-Line
  • Breaker Type: Powerpact
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Not specified
  • Panel Style: I-Line
  • Bus Type: I-Line
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • 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: Plug-In
  • Hz: 50/60 Hz
  • 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 applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: Not specified
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not applicable
  • Amperage Maximum: 500A
  • Amperage Minimum: Not applicable
  • Nema Rating: Not specified
  • Switch Style: Not applicable
  • Wire Size: Not specified
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Plug-In
  • Terminal Connection: I-Line
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: M Frame
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: M Frame
  • Current Rating: 500A
  • 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: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: Not available
  • GTIN: Not available