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circuit-breaker

General Electrics THHQB1120AF - 20 A, 1-Pole Bolt-On Circuit Breaker | AmpState

★★★★★
Part Number THHQB1120AF
Amperes 20
Poles 1
Product Type circuit-breaker
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Manufacturer :General Electrics
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $710.00
Sale price $710.00 Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.

Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.

Icon
Secure transaction
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FREE & fast shipping on orders over $49
Icon
CSA approved with 1 year warranty
Icon
30 day returns
General Electrics THHQB1120AF - 20 A 1-Pole Bolt-On Circuit Breaker | AmpState - Circuit Breakers

General Electrics THHQB1120AF - 20 A, 1-Pole Bolt-On Circuit Breaker | AmpState

Regular price $710.00
Sale price $710.00 Regular price
Unit price
Product description
Shipping

General Electric THHQB1120AF is a 20A, 1-pole bolt-on molded case circuit breaker designed to deliver reliable branch circuit protection in panelboards and load centers. Built for residential, commercial, and light industrial applications, this unit combines rugged mounting with precise protective action to keep electrical systems safe and running smoothly.

  • Secure bolt-on mounting: a rigid connection to the bus minimizes movement and vibration, enhancing reliability in environments where equipment or doors may flex or rattle.
  • Thermal-magnetic trip unit: the thermal element guards against gradual overloads, while the magnetic element responds instantly to short circuits, providing stable, repeatable protection.
  • 1-pole, 20A design: ideal for single-phase branch circuits that require dependable overcurrent protection without unnecessary complexity.
  • OEM-compatible: engineered to integrate with matching General Electric OEM load centers and panelboards, preserving fit, wiring layouts, and expected trip characteristics.

Perfect for real-world use

  • Residential projects: upgrade or replace a failed breaker in GE-panel installations, ensuring safety for lighting, outlets, and small-appliance circuits.
  • Commercial settings: add a robust, single-pole protection point in panels subjected to daily operation and occasional vibration.
  • Light industrial applications: protect individual, non-heavy-duty circuits where a reliable, bolt-on solution is preferred for long-term durability.

Why this THHQB1120AF stands out: the bolt-on mounting delivers a sturdier bus connection than plug-in options, reducing the risk of loose connections that can cause nuisance trips. The combination of a thermal and magnetic trip mechanism provides both predictable overload protection and immediate short-circuit interruption, helping to safeguard wiring, devices, and downstream equipment.

Technical snapshot

  • Manufacturer: General Electrics
  • Part Number: THHQB1120AF
  • Type: Thermal-magnetic molded case circuit breaker
  • Amperage Rating: 20A
  • Number of Poles: 1
  • Mounting Style: Bolt-on
  • Application: Branch circuit overcurrent and short-circuit protection

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General feedback we often hear from customers purchasing industrial electrical parts.

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