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Siemens HEB3B045B - Molded Case Circuit Breaker 45A 600V 3P

Siemens
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Siemens HEB3B045B is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase electrical systems. It features a 45A current rating and a 600V voltage rating, housed within a compact, durable enclosure measuring 3.543" x 6.693" x 3.937" and weighing 2.557 lb. This UL-certified breaker utilizes a thermal-magnetic trip unit with long-time and instantaneous (LI) functions and offers a 65kA interrupting capacity at 480V. Its three-pole, bolt-on configuration with a wire size range of 8 to 1/0 AWG for copper or aluminum conductors makes it suitable for industrial power distribution panels, motor control centers, and commercial main feeder applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 45A
  • Dimensions: 3.543" H x 6.693" W x 3.937" D (90mm x 170mm x 100mm)
  • Standards: UL Certified
  • Applications: Industrial Power Distribution, Motor Control Centers, Main Feeders
  • Phase: 3
  • AIC Rating: 65kA @ 480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)
  • Wire Size: 8 to 1/0 AWG CU/AL
  • Weight: 2.557 lb (1.16 kg)
  • Family: HEB Series
  • Country of Origin: Dominican Republic


Product Identification
  • UPC: 783643559011
  • GTIN: 00783643559011