Square D EJB34050SA - Molded Case Circuit Breaker 50A 3-Pole
Square D EJB34050SA - Molded Case Circuit Breaker 50A 3-Pole

Square D EJB34050SA - Molded Case Circuit Breaker 50A 3-Pole

Square D
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Square D EJB34050SA is a 3-pole molded case circuit breaker from the EJB Series by Schneider Electric, designed to provide thermal-magnetic protection for electrical circuits. It is rated for 480V AC, 50A, and 65kA interrupting capacity at 480V, with a 3-phase configuration and bolt-on connection. The unit measures 5.66 in (143.76 mm) in height, 3.92 in (99.57 mm) in width, and 4.05 in (102.87 mm) in depth, weighing 4.34 lb, and supports wire sizes from AWG 12 to AWG 2/0 for aluminum and AWG 14 to AWG 2/0 for copper. It is cULus certified and operates within a temperature range of -13 to 158 °F (-25 to 70 °C), offering long-time and instantaneous trip functions. This breaker is suited for industrial applications requiring reliable overcurrent protection in distribution panels and motor control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection
  • Voltage Rating: 480V AC
  • Current Rating: 50A
  • Dimensions: 5.66 in (143.76 mm) x 3.92 in (99.57 mm) x 4.05 in (102.87 mm) (Height x Width x Depth)
  • Standards: cULus
  • Applications: Industrial distribution panels, motor control centers
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: -13 to 158 °F (-25 to 70 °C)
  • Shipping Dimensions: Not specified
  • Phase: 3
  • Voltage: 480V
  • Amperage: 50A
  • AIC rating: 65kA@480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous Trip
  • Frame Size: EJB
  • Trip Type: Thermal Magnetic
  • 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 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: 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: AWG 12 to AWG 2/0, Aluminum; AWG 14 to AWG 2/0, Copper
  • Amperage Maximum: 50A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not applicable
  • Wire Size: AWG 12 to AWG 2/0, Aluminum; AWG 14 to AWG 2/0, Copper
  • Certification: cULus
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Bolt-On
  • Frequency Rating: 50/60 Hz (assumed)
  • Phase Connection: 3-Phase
  • Standards: cULus
  • Compatible Frames: EJB Series
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: EJB
  • Current Rating: 50A
  • 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: 70 °C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 785901648659