The Square D QOB1201044 is a 1 Pole thermal magnetic molded case circuit breaker with a current rating of 20 Amps and a voltage rating of 120/240VAC. It has an interrupting rating of 10kAIC at 120/240VAC. The QOB1201044 has a bolt-on connection type and includes long time and instantaneous trip functions.
Which panelboards are compatible with the QOB1201044 circuit breaker?
This breaker is designed for use in Square D NQ and NQOD panelboards. Because it features a bolt-on connection, it secures directly to the panelboard busbar and cannot be used in standard QO load centers that require plug-on breakers.
What does the 1044 suffix indicate on this Square D breaker?
The 1044 suffix designates that the breaker is factory-equipped with a 12V to 24V AC/DC shunt trip accessory, which allows the breaker to be opened from a remote location.
What are the wire size and torque specifications for the terminals?
The pressure plate terminals accept 14 AWG to 8 AWG aluminum or copper conductors and should be torqued to 35.4 lb-in (4 N.m) for a secure and compliant connection.
How does the thermal-magnetic trip mechanism function on this breaker?
The thermal-magnetic technology provides dual protection. The thermal component offers a long-time delay to prevent overheating from continuous overloads, while the magnetic component provides instantaneous tripping to quickly clear short circuits.
Is the QOB1201044 rated for use with HVAC equipment or switching applications?
Yes, this breaker is HACR rated for use with heating, air conditioning, and refrigeration equipment. It is also Switching Duty rated, meaning it can be used to safely switch 120V fluorescent lighting loads on and off.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 205 reviews.
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Rated 4.9 out of 5 stars
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Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 3/11/26
Customers say these electrical breakers arrive exactly as ordered and work perfectly for their intended applications. They consistently praise the competitive pricing, which many report is significantly lower than local suppliers. Fast shipping and prompt delivery are frequently highlighted, with many receiving orders within days or even next-day delivery for urgent needs. The breakers arrive well-packaged and in excellent condition. Many reviews emphasize the company's extensive inventory availability, particularly for hard-to-find breakers. One customer experienced difficulty with order cancellation and was charged a restocking fee, which caused dissatisfaction.