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Trumbull ATB36040 - Molded Case Circuit Breaker 40A 3-Pole 600V

Trumbull
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Trumbull ATB36040 is a 3-pole molded case circuit breaker from the ATB Series, designed to provide thermal-magnetic overcurrent protection with LI (Long-Time and Instantaneous) trip functions for industrial and commercial electrical systems. It is rated for 40A continuous current at 600VAC and delivers an interrupting capacity of 10kA at 480V, ensuring reliable fault clearing under short-circuit conditions. The unit features a bolt-on mounting configuration for secure installation in distribution panels and weighs 3 lb, with a compact molded case construction that supports 3-phase operation. This circuit breaker complies with industry standards for molded case breakers, offering dependable performance in protecting branch circuits and equipment from overloads and short circuits. Typical applications include use in manufacturing facilities, commercial buildings, and power distribution systems requiring robust overcurrent protection.

Key Features & Specifications
  • Type: Molded Case
  • Family: ATB Series
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 10kA@480V
  • Phase: 3
  • Current Rating: 40A
  • Weight: 3 lb
  • Amperage Rating: 40 Amps
  • Voltage Rating: 600VAC
  • Number of Poles: 3 Pole
  • Mounting Style: Bolt-On
  • Circuit Breaker Type: Type ATB Molded Case