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Eaton Cutler-Hammer GB3070 - 70A 3-Pole Molded Case Circuit Breaker

Cutler Hammer
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Eaton Cutler-Hammer GB3070 is a molded case circuit breaker designed for reliable overcurrent protection in three-phase industrial power distribution systems. It provides a 70A continuous current rating and a 240V AC voltage rating, housed within a compact G-frame construction with a feed-thru connection. The breaker features thermal-magnetic protection with long-time and instantaneous (LI) trip functions, ensuring coordinated response to both overloads and short circuits with an interrupting capacity of 65kA at 240V. It is engineered for compliance with relevant industry standards and is typically applied in panelboards, switchboards, and industrial control panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Series C, GB Type, Thermal-Magnetic Protection
  • Voltage Rating: 240V AC
  • Current Rating: 70A
  • Frame Size: G Frame
  • Poles: 3
  • Phase: 3
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)
  • AIC Rating: 65kA @ 240V
  • Weight: 2 lb


Product Identification
  • Manufacturer Part Number: GB3070