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Siemens E43M020 - Molded Case Circuit Breaker 20A 480V

Siemens
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Siemens E43M020 is a 3-pole molded case circuit breaker from the E Series, designed to provide thermal-magnetic protection for commercial and industrial power distribution systems. It is rated for 20A at 480V AC with an interrupting capacity of 18kA at 480V, and features LI (Long-Time and Instantaneous) trip functions for precise overload and short-circuit response. The bolt-on connection style and ED frame construction offer robust insulation and mechanical strength, with a weight of 7 lb and dimensions of 3.00 x 6.4 x 3.92 inches. This breaker is UL Listed and CSA Certified, ensuring compliance with industry safety standards. Typical applications include panelboard installations in residential, commercial, and industrial environments requiring dependable circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Manufacturer: Siemens
  • Model: E43M020
  • Family: E Series
  • Poles: 3
  • Current Rating: 20A
  • Voltage Rating: 480V AC
  • Interrupt Rating: 18kAIC @ 480V
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: Bolt-On
  • Frame Type: ED
  • Series: Sentron
  • Trip Unit: Non-Interchangeable
  • Terminals: Load Side Lug
  • Calibration: 50°C
  • Wire Range: 14–10 AWG (Cu), 12–10 AWG (Al)
  • Dimensions: 3.00 x 6.4 x 3.92 in
  • Weight: 7 lb
  • Phase: 3
  • UL Listed
  • CSA Certified


Part Number: E43M020