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Square D FHB16020A - Molded Case Circuit Breaker 20A 1-Pole

Square D
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Square D FHB16020A is a 1-pole molded case circuit breaker from the I-Line family, designed for thermal-magnetic overcurrent protection in industrial power distribution systems. It is rated for 20A continuous current at 600VAC, with an interrupting capacity of 25kA at 480V, and features LI (Long-Time and Instantaneous) trip functions for coordinated fault response. The unit measures 6.4 in (162.6 mm) in height, 1.5 in (38.1 mm) in width, and 4.13 in (104.90 mm) in depth, weighing 1 lb, and utilizes an I-Line style plug-in connection for direct busbar mounting. It is manufactured by Schneider Electric in Mexico and operates within a temperature range of -13°F to 158°F (-25°C to 70°C), complying with applicable industry standards for single-phase applications. This breaker is commonly used in panelboards, switchboards, and motor control centers requiring reliable branch circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic, I-Line Family
  • Voltage Rating: 600V
  • Current Rating: 20A
  • Dimensions: 6.4 in (162.6 mm) x 1.5 in (38.1 mm) x 4.13 in (104.90 mm) (H x W x D)
  • Standards: UL, CSA, NEMA (implied by I-Line family)
  • Applications: Panelboards, switchboards, motor control centers
  • Switch Type: Molded Case
  • Configuration: 1-Pole
  • Coil Voltage Maximum: Not applicable (thermal magnetic)
  • Temp Rating: -13°F to 158°F (-25°C to 70°C)
  • Shipping Dimensions: 6.4 in x 1.5 in x 4.13 in
  • Phase: 1
  • Voltage: 600V
  • Amperage: 20A
  • AIC rating: 25kA@480V
  • Connection: I-Line Style Plug-In
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous Trip
  • Frame Size: FHB
  • Trip Type: Thermal Magnetic
  • Panel Type: I-Line
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltate Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Not specified
  • Panel Style: I-Line
  • Bus Type: I-Line
  • Fuse Class: Not applicable
  • Insulation Temperature: Not specified
  • Inductance: Not applicable
  • Impedance: Not specified
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Plug-In (I-Line)
  • Hz: 50/60 Hz (typical for I-Line)
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • 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: Not specified
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 20A
  • Amperage Minimum: 0A
  • Nema Rating: Not specified
  • Switch Style: Molded Case
  • Wire Size: Not specified
  • Certification: UL, CSA (implied)
  • Circuit Breaker Mounting Style: Plug-In
  • Terminal Connection: I-Line
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single Phase
  • Standards: UL 489, CSA C22.2 No. 5 (implied)
  • Compatible Frames: I-Line panelboards
  • Installation Type: Plug-In
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: FHB
  • 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: 70°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: Not provided
  • GTIN: Not provided