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Siemens E43B040 - Molded Case Circuit Breaker 40A 480V 3P

Siemens
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Siemens E43B040 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase electrical systems. It features a 40A current rating and a 480V AC voltage rating, housed in a compact, three-pole bolt-on configuration with a thermal-magnetic trip unit for combined long-time and instantaneous (LI) protection functions. This breaker is constructed with durable materials for industrial longevity, complies with relevant industry standards, and is typically applied in panelboards, switchboards, and industrial control equipment where an 18kA interrupting rating at 480V is required.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 480V AC
  • Current Rating: 40A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 18kA @ 480V
  • Protection Functions: LI (Long-Time and Instantaneous)
  • Connection Type: Bolt-On
  • Family/Series: E Series
  • Frame Type: E
  • Item Subcategory: Molded Case
  • Weight: 3 lb


Product Identification
  • GTIN: 00783643558557