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Square D A1B1DB - Molded Case Circuit Breaker 20A 1-Pole

Square D
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Square D A1B1DB is a 1-pole molded case circuit breaker designed for thermal magnetic overcurrent protection in electrical systems. It is rated for 20 Amps at 120 Volts AC with a 10kA interrupt rating, utilizing LI (Long-Time and Instantaneous) trip functions for reliable fault clearing. This compact unit weighs 1 lb, features a feed-thru connection, and is part of the A1B Series with a standard molded case mounting. It is UL Listed for safety compliance and suitable for residential and commercial applications requiring single-phase, single-pole circuit protection.

Key Features & Specifications
  • Type: Molded Case
  • Manufacturer: Square D
  • Family: A1B Series
  • Weight: 1 lb
  • Functions: LI - Long-Time and Instantaneous
  • Poles: 1
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • Phase: 1
  • Amperage: 20 Amps
  • Voltage: 120 Volts AC
  • Mounting Type: Standard Molded Case
  • Interrupt Rating: 10kA at 120V
  • Series/Frame: A1B
  • Trip Unit: Thermal Magnetic
  • Certifications: UL Listed