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Siemens HEB2B040 - Molded Case Circuit Breaker 40A 2-Pole

Siemens
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Siemens HEB2B040 is a 2-pole molded case circuit breaker from the HEB Series, designed for general-purpose electrical distribution and circuit protection in industrial and commercial power systems. It utilizes a thermal-magnetic trip unit with LI (Long-Time and Instantaneous) functions to provide reliable overcurrent and short-circuit protection, rated for 600V AC and a continuous current of 40A. The compact bolt-on connection design facilitates straightforward installation in panelboards and load centers, with a weight of 2 lb. This breaker complies with UL 489 standards and delivers an interrupting rating of 65 kA at 480V, ensuring robust performance in high-fault environments. Typical applications include protecting branch circuits and equipment in manufacturing facilities, commercial buildings, and other single-phase power distribution systems.

Key Features & Specifications
  • Manufacturer: Siemens
  • Model: HEB2B040
  • Type: HEB
  • Item Subcategory: Molded Case
  • Family: HEB Series
  • Number of Poles: 2
  • Continuous Current Rating: 40 Amperes
  • Voltage Rating: 600V AC
  • Mounting Type: Bolt-On
  • Trip Unit: Thermal-Magnetic (Long-Time and Instantaneous)
  • Functions: LI - Long-Time and Instantaneous
  • Interrupting Rating: 65 kA at 480V
  • Phase: 1
  • Weight: 2 lb
  • Certification: UL 489
  • Operating Temperature: 40 degrees Celsius