Siemens HED43B125 - Molded Case Circuit Breaker 125A 480V 3P
Siemens HED43B125 - Molded Case Circuit Breaker 125A 480V 3P

Siemens HED43B125 - Molded Case Circuit Breaker 125A 480V 3P

Siemens
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Siemens HED43B125 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase electrical systems. It features a 125A current rating and a 480V AC voltage rating, housed within a compact 125A/ED frame measuring 3" x 6.34" and weighing 0.34 lb. This thermal-magnetic breaker is UL Listed and HACR rated, ensuring compliance with industry safety standards for use in SB switchboards and Sentron panelboards. Its construction supports copper wire sizes from AWG 3 to 3/0 and aluminum from AWG 1 to 2/0, with a 42kA interrupting rating at 480V for robust fault protection in commercial and industrial applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection with Long Time and Instantaneous Trip Functions
  • Voltage Rating: 480V AC
  • Current Rating: 125A
  • Frame Size: 125A/ED
  • Poles: 3
  • AIC Rating: 42kA @ 480V
  • Connection: Lug In Panelboard, Load Side Lug Terminals
  • Phase Connection: ABC, 3-Phase
  • Wire Size: AWG 3 to 3/0 (Copper), AWG 1 to 2/0 (Aluminum)
  • Standards & Certification: HACR Rated, UL Listed
  • Panel Type: Compatible with SB Switchboards and Sentron Panelboards
  • Dimensions: 3 in x 6.34 in (76.2 mm x 161 mm)
  • Weight: 0.34 lb (0.15 kg)
  • Operating Temperature: -25°C to 70°C (-13°F to 158°F)
  • Breaker Type: Standard
  • Family: Sentron Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 783643210233
  • GTIN: 00783643210233