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Siemens HEB1B025B - Molded Case Circuit Breaker 25A 1P 277V

Siemens
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Siemens HEB1B025B is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in single-phase industrial and commercial electrical systems. It features a 25A current rating and a 277V AC voltage rating, housed within a compact, bolt-on configuration for secure panel mounting. The breaker is constructed with a thermal-magnetic trip unit offering both long-time and instantaneous (LI) protection functions and operates reliably across a temperature range of -25 to 70 °C. It complies with industry standards for safety and performance, including a 65kA interrupting capacity at 277V. Typical applications include protection for feeders, branch circuits, and equipment in control panels and distribution boards.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 277V AC
  • Current Rating: 25A
  • Poles: 1
  • Phase: 1
  • AIC Rating: 65kA @ 277V
  • Protection Functions: LI (Long-Time and Instantaneous Trip)
  • Connection: Bolt-On
  • Wire Size Compatibility: AWS 8 to AWS 1/0, Copper or Aluminum
  • Operating Temperature Range: -25°C to 70°C (-13°F to 158°F)
  • Weight: 1.257 lb
  • Standards: Designed to meet applicable industry safety and performance standards
  • Family: HEB Series
  • Country of Origin: Dominican Republic


Product Identification
  • UPC: 783643558670
  • GTIN: 00783643558670