Siemens HED43B020 - Molded Case Breaker 20A 480V 3P
Siemens HED43B020 - Molded Case Breaker 20A 480V 3P

Siemens HED43B020 - Molded Case Breaker 20A 480V 3P

Siemens
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Siemens HED43B020 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase electrical systems. It features a 20A current rating and a 480V AC voltage rating, housed within a compact 3" x 6.35" (76.2 mm x 161.3 mm) frame with a thermal-magnetic trip unit for long-time and instantaneous protection. Constructed for durability, it operates within a temperature range of -25 to 70 °C and complies with key industry standards including UL 489 and IEC 60947-2. This high-interrupting capacity (42kA @ 480V) breaker is typically installed in Siemens SB switchboards and Sentron panelboards using a load-side lug connection for conductors from AWG 10 to 1/0.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, High Interrupting Capacity
  • Voltage Rating: 480V AC
  • Current Rating: 20A
  • Dimensions: 3 in x 6.35 in (76.2 mm x 161.3 mm)
  • Weight: 3.6 lb
  • Standards: UL 489, IEC 60947-2
  • Applications: SB Switchboards, Sentron Panelboards
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Phase: 3
  • AIC Rating: 42kA @ 480V
  • Connection: Load Side Lug, Lug In Panelboard
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: 125A/ED
  • Breaker Type: High Interrupting Capacity
  • MCM Size: Min. Wire Size 10 AWG, Max. Wire Size 1/0 AWG
  • Wire Size: AWG 14 to AWG 10 (Cu), AWG 12 to AWG 10 (Al)
  • Certification: IEC 60947-2, UL 489
  • Phase Connection: ABC
  • Family: Sentron Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 783643210103
  • GTIN: 00783643210103