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Zinsco Q243040 - Molded Case Circuit Breaker 40A 3-Pole 240V

Zinsco
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Zinsco Q243040 is a 3-pole, 40 amp molded case circuit breaker from the Q Series, designed for overcurrent protection in residential and light commercial electrical systems. It operates at 240V with a 10kA interrupting capacity at 240V and utilizes thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions. The breaker features a plug-in connection style, weighs 2.05 lb, and is built for use in compatible Zinsco load centers. It meets industry standards for branch circuit protection in older Zinsco electrical panels.

Key Features & Specifications
  • Manufacturer: Zinsco
  • Item Subcategory: Molded Case
  • Family: Q Series
  • Type: Q
  • Weight: 2.05 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 240V
  • Poles: 3
  • Connection: Plug-In
  • Protection: Thermal Magnetic
  • AIC rating: 10kA@240V
  • Phase: 3
  • Current Rating: 40A
  • Part Number: Q243040
  • Mounting Type: Plug-In
  • Breaker Type: Molded Case
  • Application: Residential, Light Commercial
  • Compatibility: Zinsco Load Centers


Part Number: Q243040