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Siemens HE43B050 - Molded Case 50A 3-Pole Breaker

Siemens
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Siemens HE43B050 is a 3-pole, 50-amp molded case circuit breaker from the HE Series, designed for overcurrent protection in three-phase power distribution systems. It operates at 480VAC with a 25kA interrupting capacity and employs a thermal magnetic trip unit featuring LI (Long-Time and Instantaneous) protection functions. The unit weighs 7 lb and uses a bolt-on mounting connection for secure installation in panelboards. This breaker complies with industry standards for commercial and industrial electrical systems, ensuring reliable performance in demanding environments. Typical applications include branch circuit protection in manufacturing facilities, commercial buildings, and industrial control panels.

Key Features & Specifications
  • Manufacturer: Siemens
  • Item Subcategory: Molded Case
  • Family: HE Series
  • Type: HE
  • Weight: 7 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 480V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 25kA@480V
  • Phase: 3
  • Current Rating: 50A
  • Part Number: HE43B050
  • Frequency: 50/60Hz