Square D EGB14040 - Molded Case Circuit Breaker 40A 277V
Square D EGB14040 - Molded Case Circuit Breaker 40A 277V

Square D EGB14040 - Molded Case Circuit Breaker 40A 277V

Square D
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Square D EGB14040 is a molded case circuit breaker designed for providing reliable overcurrent protection in industrial and commercial electrical systems. It features a 40A current rating and a 277V voltage rating, engineered for single-phase applications. The breaker is constructed with a compact E-frame measuring 143.76 mm H x 24.89 mm W x 102.87 mm D and utilizes a thermal-magnetic trip unit for long-time and instantaneous (LI) protection. It is cULus listed and complies with industry standards for safety and performance. This bolt-on, single-pole breaker is typically applied in NF panelboards for lighting and appliance branch circuits, offering a 35kA interrupting capacity at 480V and an operational temperature range of -25 to 70 °C.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, LI (Long-Time & Instantaneous) Trip
  • Voltage Rating: 277V AC
  • Current Rating: 40A
  • Dimensions: 5.66 in (143.76 mm) H x 0.98 in (24.89 mm) W x 4.05 in (102.87 mm) D
  • Standards: cULus
  • Applications: NF Panelboards, Lighting & Appliance Branch Circuits
  • Switch Type: Circuit Breaker
  • Configuration: Single Pole
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Phase: 1
  • AIC Rating: 35kA @ 480V
  • Connection: Bolt-On, Lug Terminal
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: Long-Time & Instantaneous Trip (LI)
  • Frame Size: G; E-Frame
  • Panel Type: NF Panelboard
  • Breaker Type: Molded Case
  • MCM Size: Min. 12 AWG (Al) / 14 AWG (Cu); Max. 2/0 AWG (Cu/Al)
  • Wire Size: AWG 14 to AWG 2/0, AWG 12 to AWG 2/0, Cu/Al
  • Certification: cULus
  • Mounting: Panel Mount
  • Enclosure: Molded Case
  • Wire: Copper or Aluminum
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single Phase
  • Standards: cULus
  • Installation Type: Fixed
  • Breaker Frame: E-Frame
  • Weight: 1.3 lb


Product Identification
  • UPC: 785901311102
  • GTIN: 00785901311102