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CHFN120A1 - Circuit Breaker 20A 120/240V AC (Single Pole)

United Fuses
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CHFN120A1 is a high-quality circuit breaker designed for overcurrent protection in industrial electrical systems. It operates at a voltage rating of 120/240V AC and a current rating of 20A, ensuring reliable performance in standard applications. The breaker features a compact construction with a weight of 5.19 lb, making it suitable for panel mounting in various enclosures. It complies with UL and CSA standards, ensuring safety and reliability in demanding environments. Typical industrial applications include motor control centers, distribution panels, and branch circuit protection in manufacturing facilities.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip
  • Voltage Rating: 120/240V AC
  • Current Rating: 20A
  • Dimensions: Standard 1-inch pole width
  • Standards: UL 489, CSA C22.2 No. 5
  • Applications: Branch circuit protection, motor control centers
  • Switch Type: Toggle
  • Configuration: Single pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 3.5 x 2.5 x 4.0 inches
  • Phase: Single phase
  • Voltage: 120/240V AC
  • Amperage: 20A
  • AIC rating: 10kA @ 120/240V AC
  • Connection: Line and load lugs
  • Poles: 1
  • Protection: Overcurrent and short circuit
  • Functions: On/Off switching
  • Frame Size: 100A frame
  • Trip Type: Thermal-magnetic
  • Panel Type: Load center
  • Breaker Type: Type CH
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Steel
  • Panel Style: Surface mount
  • Bus Type: Copper
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Panel mount
  • Hz: 60 Hz
  • Coil Material: Not applicable
  • Horse Power: 1 HP @ 120V, 2 HP @ 240V
  • Aux Contacts: Not available
  • CPT: Not applicable
  • Full Load Amps: 20A
  • Dist Voltage: Not applicable
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 20A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open style
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper or aluminum
  • Amperage Maximum: 20A
  • Amperage Minimum: 0A
  • Nema Rating: 1
  • Switch Style: Toggle
  • Wire Size: 14 AWG to 8 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Plug-in
  • Terminal Connection: Screw lugs
  • Frequency Rating: 60 Hz
  • Phase Connection: Single phase
  • Standards: UL 489, CSA C22.2 No. 5
  • Compatible Frames: CH series
  • Installation Type: Plug-in
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: 100A
  • Current Rating: 20A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not applicable
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 78668916630
  • GTIN: 00786689166304