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Westinghouse BA120 - Miniature Circuit Breaker 20A 120/240V

Westinghouse
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Westinghouse BA120 Circuit Breaker is a thermal-magnetic miniature circuit breaker designed for overload and short-circuit protection in electrical distribution systems. It is rated for 120/240V AC at 20 amps, providing reliable overcurrent interruption in branch circuits. Weighing 0.25 lb, this single-pole breaker features a compact construction for installation in Westinghouse load centers, with a 10 kAIC interrupting capacity. It complies with UL 489 standards for safety and performance in residential and light commercial applications. Typical uses include protecting lighting, receptacle, and general-purpose circuits in panelboards.

Key Features & Specifications
  • Type: Thermal-magnetic miniature circuit breaker
  • Voltage Rating: 120/240V AC
  • Current Rating: 20A
  • Dimensions: Compact, single-pole design
  • Standards: UL 489
  • Applications: Residential and light commercial branch circuit protection
  • Switch Type: Toggle
  • Configuration: Single-pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Standard miniature breaker size
  • Phase: Single-phase
  • Voltage: 120/240V AC
  • Amperage: 20A
  • AIC rating: 10 kAIC
  • Connection: Line and load terminals
  • Poles: 1
  • Protection: Overload and short-circuit
  • Functions: Overcurrent protection
  • Frame Size: 1-inch per pole
  • Trip Type: Thermal-magnetic
  • Panel Type: Load center
  • Breaker Type: Miniature circuit breaker
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Copper alloy contacts
  • Panel Style: Plug-on
  • Bus Type: Tin-plated 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: 1-inch
  • Clas: Not applicable
  • Mounting: Plug-on
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not applicable
  • Aux Contacts: Not applicable
  • CPT: Not applicable
  • Full Load Amps: 20A
  • Dist Voltage: 120/240V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 20A
  • Full Load Amp Minimum: 20A
  • Enclosure: Open style
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper or aluminum
  • Amperage Maximum: 20A
  • Amperage Minimum: 20A
  • Nema Rating: Not applicable
  • Switch Style: Toggle
  • Wire Size: 14 AWG to 8 AWG
  • Certification: UL listed
  • Circuit Breaker Mounting Style: Plug-on
  • Terminal Connection: Screw terminals
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single-phase
  • Standards: UL 489
  • Compatible Frames: Westinghouse load centers
  • Installation Type: Panel mount
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: BA
  • 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: Not available
  • GTIN: Not available