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Siemens E43A040 - Molded Case Circuit Breaker 40A 480V 3-Pole

Siemens
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Siemens E43A040 is a 3-pole molded case circuit breaker from the E Series, designed for instantaneous magnetic-only protection in industrial power distribution systems. It is rated for 40 amps at 480 volts with an 18kA interrupting capacity at 480V, utilizing a bolt-on connection for secure panel mounting. This unit weighs 3 lb and features a compact ED frame construction for efficient installation in limited spaces. It complies with industry standards for safety and performance in commercial and industrial environments. Typical applications include motor control centers, panelboards, and switchgear requiring reliable short-circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Manufacturer: Siemens
  • Family: E Series
  • Functions: I - Instantaneous
  • Voltage Rating: 480V
  • Current Rating: 40 Amps
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Magnetic Only
  • AIC Rating: 18kA at 480V
  • Weight: 3 lb
  • Frame/Series: ED Frame
  • Trip Unit: Thermal-Magnetic
  • Certifications: Industry Standard Compliant