ABB THHQB1120 Circuit Breaker Ac Analog 20A 120/240V On/off

( Brand: Abb ), ( Operation Method: On/off ), ( Current Type: Ac ), ( Type: Circuit Breaker ), ( Control Style: Analog/mechanical ), ( Maximum Amperage: 20 A ), ( Voltage: 120/240 V ), ( Color: Black ), ( Manufacturer Part Number: THHQB1120 )

Review ABB Circuit Breaker 20a 120/240v Ac Analog On/off Black

The ABB THHQB1120 Circuit Breaker is a reliable and efficient solution for protecting your electrical circuits from overloads and short circuits. This circuit breaker is designed for residential and light commercial applications, with a rating of 20 amps and the ability to handle both 120 and 240 volts of alternating current (AC).

The THHQB1120 is an on/off, or analog, circuit breaker, meaning that it provides a visual indication of its status through a lever that can be manually moved to the ON or OFF position. This design allows for easy operation and monitoring of the circuit breaker, making it an ideal choice for applications where a more precise control over the electrical load is not required.

The breaker housing is made of a durable and corrosion-resistant material, ensuring long-lasting performance even in demanding environments. The breaker also features a thermalmagnetic trip unit, which provides both thermal and magnetic trip functions for optimal safety. The thermal function protects against overloads caused by prolonged electrical resistance, while the magnetic function protects against short circuits.

The ABB THHQB1120 Circuit Breaker is designed with safety in mind, featuring a number of important safety features. These include a ground fault protection function, which helps to prevent electrical shocks, and a built-in current limiter, which helps to reduce the risk of electrical fires. The breaker also has a high breaking capacity, which ensures that it can safely disconnect the circuit in the event of a fault.

Installation of the THHQB1120 Circuit Breaker is straightforward, with clear and concise instructions provided in the user manual. The breaker is also compatible with standard electrical panels, making it a versatile and convenient option for a wide range of applications.

Overall, the ABB THHQB1120 Circuit Breaker is a high-quality and reliable solution for protecting your electrical circuits against overloads and short circuits. Its easy-to-use on/off design, durable construction, and important safety features make it an excellent choice for residential and light commercial applications.

The ABB THHQB1120 circuit breaker is a 20A, 120/240V AC analog on-off breaker. This type of circuit breaker is commonly used in residential and commercial electrical systems to protect against overcurrent conditions. Here are some pros and cons of buying this specific circuit breaker:

1. Analog design: The analog design of the ABB THHQB1120 allows for manual tripping of the breaker, which can be useful in situations where automatic tripping is not desired or when testing the electrical system.

2. 120/240V compatibility: The circuit breaker can be used with both 120V and 240V electrical systems, making it a versatile option for various applications.

3. 20A current rating: The 20A current rating is suitable for many common electrical loads, such as refrigerators, air conditioners, and electrical tools.

1. Limited automation: Since it is an analog circuit breaker, it does not offer the same level of automation as digital circuit breakers. This can make it less suitable for larger electrical systems or applications where automatic tripping is essential.

2. Higher installation cost: Analog circuit breakers typically cost more to install than digital circuit breakers due to the additional labor required to wire the breaker manually.

3. Limitations on current sensing: The ABB THHQB1120 does not offer current sensing capabilities, which can be a disadvantage in applications where monitoring the electrical current is essential.

In conclusion, the ABB THHQB1120 circuit breaker is a reliable option for protecting against overcurrent conditions in 120/240V electrical systems with a 20A current rating. Its analog design offers manual tripping capabilities and compatibility with both 120V and 240V systems. However, it has limitations in terms of automation and current sensing, and its installation cost may be higher than digital circuit breakers.

If you require more automation or current sensing capabilities, or if you are looking for a more cost-effective option, a digital circuit breaker may be a better choice. However, if you prefer the manual tripping capabilities and compatibility with both 120V and 240V systems offered by the ABB THHQB1120, then it may be a suitable option for your electrical system.

Details:

ABB THHQB1120 Circuit Breaker 20A 120/240V AC Analog On/Off Black.

part #: thhqb1120 prices

• $45.00-$165.00

specifications breakercoon:

• brand: Abb
• operation method: On/off
• current type: Ac
• type: Circuit Breaker
• control style: Analog/mechanical
• maximum amperage: 20 A
• voltage: 120/240 V
• color: Black
• manufacturer part number: THHQB1120

general breakercoon:

• condition: Open box
• Electrical Supplies > Electrical Panels, Boxes Circuit Breakers > Circuit Breakers

shipping breakercoon:

• type: Calculated
• class: Standard
• cost: $6.07
• carrier: USPS
• service: USPS Ground Advantage
• transit: 6-12 Days

returns breakercoon:

• policy: No Returns

seller breakercoon:

• rating: 0.0%
• city: Kenner, Louisiana
• # reviews: 0

payments breakercoon:

• wallet: Paypal
• credit card: Diners-club
• other

offer breakercoon:

• options: Ship-to-home
• started: May 8, 2026
• best offers: True
• sold: 0
• availability: In Stock
• quantity: 7

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