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Siemens HE3A020 - Molded Case Circuit Breaker 20A 480V 3-Pole

Siemens
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Siemens HE3A020 is a 3-pole molded case circuit breaker from the HE Series, designed for instantaneous magnetic-only overcurrent protection in 3-phase power distribution systems. It is rated for 20A continuous current at 480V AC, with a bolt-on connection for secure panel mounting and an interrupting capacity of 25kA at 480V. The unit weighs 8 lb and features a compact, durable construction suitable for industrial environments. It complies with UL 489 standards for molded case circuit breakers, ensuring reliable fault current interruption. Typical applications include commercial and industrial electrical panels requiring precise magnetic-only protection for motor circuits and other inductive loads.

Key Features & Specifications
  • Manufacturer: Siemens
  • Part Number: HE3A020
  • Type: HE
  • Item Subcategory: Molded Case
  • Family: HE Series
  • Amperage: 20 Amp
  • Voltage Rating: 480 Volts AC
  • Number of Poles: 3
  • Phase: 3
  • Mounting Type: Bolt-On
  • Connection: Bolt-On
  • Interrupt Rating: 25kA @ 480V
  • Protection: Magnetic Only
  • Functions: I - Instantaneous
  • Weight: 8 lb
  • Certifications: UL 489 Compliant