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Square D EJB14020SA - Molded Case 20A 277V Breaker

Square D
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The Square D EJB14020SA is a 1-pole molded case circuit breaker from the EJB Series, designed to provide thermal-magnetic overcurrent protection for branch circuits. This breaker is rated for 20A at 277VAC, with an interrupting capacity of 65kA at 480V, and features a bolt-on connection for secure panel mounting. It measures 5.66 in (143.76 mm) x 1.96 in (49.78 mm) x 4.05 in (102.87 mm) (H x W x D), weighs 2.094 lb, and is constructed with a compact, industrial-grade housing rated for operation from -13°F to 158°F (-25°C to 70°C). The unit is UL-listed and complies with applicable industry standards, incorporating long-time and instantaneous trip functions, and is complete with a 120V shunt trip for remote tripping capability. It is suitable for use in commercial and industrial power distribution systems, accepting wire sizes from AWG 14 to AWG 6 (copper) or AWG 12 to AWG 6 (aluminum).

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Voltage Rating: 277V
  • Current Rating: 20A
  • Dimensions: 5.66 in (143.76 mm) x 1.96 in (49.78 mm) x 4.05 in (102.87 mm) (Height x Width x Depth)
  • Standards: UL Listed
  • Applications: Commercial and industrial power distribution
  • Switch Type: Thermal Magnetic
  • Configuration: 1-Pole
  • Coil Voltage Maximum: 120V (shunt trip)
  • Temp Rating: -13°F to 158°F (-25°C to 70°C)
  • Shipping Dimensions: 5.66 in x 1.96 in x 4.05 in
  • Phase: 1
  • Voltage: 277V
  • Amperage: 20A
  • AIC rating: 65kA@480V
  • Connection: Bolt-On
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous Trip
  • Frame Size: EJB
  • Trip Type: Thermal Magnetic
  • Panel Type: Standard
  • Breaker Type: Molded Case
  • Control Voltage Minimum: 120V (shunt trip)
  • Control Voltage Maximum: 120V (shunt trip)
  • MCM Size: N/A
  • Metal Type: N/A
  • Panel Style: N/A
  • Bus Type: N/A
  • Fuse Class: N/A
  • Insulation Temperature: N/A
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: N/A
  • Diameter: N/A
  • Velocity: N/A
  • Clip Center: N/A
  • Clas: N/A
  • Mounting: Bolt-On
  • Hz: 50/60 Hz
  • Coil Material: N/A
  • Horse Power: N/A
  • Aux Contacts: N/A
  • CPT: N/A
  • Full Load Amps: N/A
  • Dist Voltage: N/A
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: N/A
  • Full Load Amp Minimum: N/A
  • Enclosure: N/A
  • Relay Style: N/A
  • Coil Voltage Minimum: 120V (shunt trip)
  • Wire: Copper/Aluminum
  • Amperage Maximum: 20A
  • Amperage Minimum: N/A
  • Nema Rating: N/A
  • Switch Style: N/A
  • Wire Size: AWG 14 to AWG 6 (Copper), AWG 12 to AWG 6 (Aluminum)
  • Certification: UL Listed
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Bolt-On
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 1-Phase
  • Standards: UL
  • Compatible Frames: EJB
  • Installation Type: Panel Mount
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: EJB
  • Current Rating: 20A
  • Reverse Standoff Voltage: N/A
  • Watts: N/A
  • Peak Pulse Current: N/A
  • Breakdown Voltage (MIN VBR@IT ) (V): N/A
  • Breakdown Voltage (VBR@IT) (V): N/A
  • Polarity: N/A
  • Operating Temperature Maximum Celsius: 70°C
  • Max Clamp Voltage: N/A
  • On-State Current: N/A


Product Identification
  • UPC: 3606486143735