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QB Series

Schneider Electric QB Series

The Schneider Electric QB series is a line of molded case circuit breakers that offer overcurrent protection for AC motor systems. These QB breakers are available in 2- and 3-pole configurations, with current ratings ranging from 70 to 250 A and interrupting ratings from 10 kA to 100 kA. They are suitable for use in panelboards, switchboards, and OEM applications. The QB series circuit breakers are designed for both unit-mount and I-Line installations, providing flexibility and reliability in various industrial systems.

Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Browse QB Series

Browse available units in our catalog of QB Series.

QBA221751

This circuit breaker has a thermal magnetic protection category and an interrupt rating of 10 kA, ensuring reliable circuit protection. It is designed for plug-in connections and can function in envir

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5.0

QBA32125

Designed to handle up to 10 kA of interrupt rating, the QBA32125 features thermal magnetic protection with long-time and instantaneous trip functions. It comprises three poles and utilizes a 1-line st

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4.5

QBA221002

This QB Series circuit breaker is classified as a 2-pole unit with an interrupt rating of 10 kA. It offers long-time and instantaneous protection functions and operates within a thermal magnetic frame

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4.5

QBL32090

This circuit breaker features three poles and provides long-time and instantaneous protection functions under thermal magnetic conditions. It is rated for a maximum interrupt capacity of 10 kA and ope

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5.0

QBL32110

This circuit breaker operates at a rated voltage of 240 VAC and is suitable for three-phase connections with three poles. It offers LI functions for long-time and instantaneous protection. With a ther

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5.0

QBA32225

This circuit breaker supports a maximum interrupt rating of 10 kA and is designed with thermal magnetic protection. It utilizes a 1-line style plug-in connection and has a weight of 3.05 lbs. It is ef

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4.5

QBA221754

Designed for 1-phase applications, this circuit breaker accommodates a rated current of 175 A. With dimensions of 164.34 mm in height, 76.2 mm in width, and 99.82 mm in depth, it is suitable for vario

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5.0

QBL32080

This circuit breaker is constructed with three poles and has an interrupt rating of 10 kA for effective fault management. It functions through both long-time and instantaneous modes. Environmental sui

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5.0

QBL32100

This circuit breaker offers an interrupt rating of 10 kA, making it suitable for various applications. It operates effectively within a temperature range of 0°C to 40°C and can tolerate humidity level

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4.5

QBA222004

This circuit breaker is configured for 1-phase operation and includes 2 poles. It features long-time and instantaneous functions while maintaining an interrupt rating of 10 kA. The QBA222004 operates

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4.5
Showing 11-20 of 28 results