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Square D EJB14070 - Molded Case Breaker 70A 277V (65kA AIC)

Square D
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Square D EJB14070 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial and commercial electrical systems. It features a 70A current rating and a 277V voltage rating, housed within a compact, single-pole bolt-on unit measuring 143.76 mm H x 24.89 mm W x 102.87 mm D and weighing 1.301 lb. This thermal magnetic breaker, certified to cULus standards, offers LI (Long-time and Instantaneous) protection functions and a 65kA interrupting capacity at 480V for robust fault protection. It is engineered for installation in NF panelboards, accommodating wire sizes from AWG 14 to AWG 2/0 for both copper and aluminum conductors, and is rated for operation in ambient temperatures up to 40 °C (104 °F).

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 277V
  • Current Rating: 70A
  • 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 Certified
  • Applications: Industrial and Commercial Electrical Distribution, NF Panelboards
  • Poles: 1
  • Phase: 1
  • AIC Rating: 65kA @ 480V
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)
  • Connection: Bolt-On
  • Panel Type: NF panelboard
  • Wire Size: AWG 12, AWG 2/0 aluminium, AWG 14, AWG 2/0 copper
  • Temp Rating: 104 °F (40 °C)
  • Weight: 1.301 lb


Product Identification
  • UPC: 785901130581
  • GTIN: 00785901130581