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Schneider Electric M9F42320 - Multi9 Circuit Breaker 20A 3-Pole

Schneider Electric
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Schneider Electric M9F42320 is a Multi9 series 3-pole molded case circuit breaker designed for thermal-magnetic overload and short-circuit protection in industrial and commercial power distribution systems. It is rated for 20A at 240/415/440VAC with a 14kAIC interrupting capacity at 120/240VAC, and it accepts wire sizes from AWG 18 to AWG 8. The breaker measures 4.06 in (103 mm) in height, 2.1 in (54 mm) in width, and 2.8 in (72 mm) in depth, weighs 0.82 lb, and features tunnel-type terminals for flexible or rigid wiring with a DIN rail clip-on mounting. It complies with RoHS and REACh standards and holds certifications from UL, CSA, EN/IEC, CCC, and GB, with an IP20 rating and an operating temperature range of -13°F to 158°F (-25°C to 70°C). This breaker is suitable for 3-phase applications requiring reliable protection in panelboards, switchboards, and motor control centers.

Key Features & Specifications
  • Type: Multi9
  • Item Subcategory: Molded Case
  • Poles: 3
  • Current Rating: 20 Amps
  • Voltage Rating: 240/415/440VAC
  • Interrupt Rating: 14kAIC at 120/240VAC
  • Protection: Thermal Magnetic
  • Phase: 3
  • Wire Size: AWG 18 to AWG 8
  • Mounting Type: DIN Rail Clip-On
  • Terminal Type: Tunnel terminals (top/bottom)
  • Dimensions: 4.06 in (103 mm) x 2.1 in (54 mm) x 2.8 in (72 mm) (Height x Width x Depth)
  • Weight: 0.82 lb
  • Temp Rating: -13°F to 158°F (-25°C to 70°C)
  • IP Rating: IP20
  • Mechanical Durability: 20,000 cycles
  • Electrical Durability: 10,000 cycles
  • Certification: UL, CSA, EN/IEC, CCC, GB
  • Standards: RoHS, REACh
  • Country of Origin: France


Product Identification
  • UPC: 785901692119
  • GTIN: 03606481169938