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Square D EJB36045 - Molded Case Circuit Breaker 45A 600V 3-Pole

Square D
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Square D EJB36045 is a 3-pole molded case circuit breaker from the EJB Series, designed to provide thermal-magnetic protection for electrical systems. It is rated for 600V AC, 45A, and 45A, with a 65kA interrupting capacity at 480V AC. The unit measures 5.66 in x 2.94 in x 4.05 in (143.76 mm x 74.68 mm x 102.87 mm), weighs 3.45 lb, and features a bolt-on connection for NF panelboards. It is cULus certified and operates at a maximum ambient temperature of 104 °F (40 °C). This breaker is suitable for industrial applications requiring reliable overcurrent protection in three-phase power distribution systems.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, EJB Series, LI (Long-Time and Instantaneous) trip functions
  • Voltage Rating: 600V AC
  • Current Rating: 45A
  • Dimensions: 5.66 in (143.76 mm) x 2.94 in (74.68 mm) x 4.05 in (102.87 mm) (Height x Width x Depth)
  • Standards: cULus certified
  • Applications: Industrial power distribution, three-phase systems
  • Switch Type: Thermal-magnetic
  • Configuration: 3-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 104 °F (40 °C)
  • Shipping Dimensions: Not specified
  • Phase: 3
  • Voltage: 600V
  • Amperage: 45A
  • AIC rating: 65kA@480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: EJB
  • Trip Type: Thermal-magnetic
  • Panel Type: NF panelboard
  • 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 applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: AWG 12...AWG 2/0 aluminum; AWG 14...AWG 2/0 copper
  • Amperage Maximum: 45A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not specified
  • Wire Size: AWG 12...AWG 2/0 aluminum; AWG 14...AWG 2/0 copper
  • Certification: cULus
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Not specified
  • Frequency Rating: Not specified
  • Phase Connection: 3-phase
  • Standards: cULus
  • Compatible Frames: EJB
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: EJB
  • Current Rating: 45A
  • 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: 078590140704
  • GTIN: 00785901407041