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Q Series

Siemens Q Series

The Siemens Series Q is a line of thermal magnetic circuit breakers used for protecting electrical circuits from overloads and short circuits. It includes Standard single pole, double pole, common trip, and plug in models rated around 120/240 VAC, with amperages from about 15A up to 50 100A and interrupting ratings around 10 kA. These breakers are used in residential and light commercial load centres for circuits that feed lighting, outlets, heating, refrigeration and air conditioning. They serve in panelboards and meter combo enclosures to ensure safe distribution of power in industrial facilities, homes and commercial buildings.

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 Q Series

Browse available units in our catalog of Q Series.

QS2100H

This circuit breaker operates within a thermal/magnetic trip type and is rated for 22 kA interrupt capacity. It utilizes a plug-in connection type, accommodating wire sizes from 3 AWG to 300 kcmil and

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5.0

QS2125

The QS2125 features a two-pole configuration and a plug-in connection type for easy installation in load centers. With an interrupt rating of 10 kA at 240 V, it is recognized for its reliable performa

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5.0

Q2125B

This circuit breaker is engineered with two poles and designed for 1-phase operation. It features a durable Q frame and includes thermal magnetic protection with long-time and instantaneous trip funct

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5.0

Q215EG

This circuit breaker features two poles and is equipped with a GFCI rating of 30 mA, providing essential ground fault protection. It has an interrupting capacity of 10 kA and is UL 489 listed, ensurin

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5.0

Q34000S01

This circuit breaker supports three-phase systems and has an interrupt rating of 10 AIC. It provides a wire range accommodating from #14 to #2 AWG for copper and aluminum connections. The Q34000S01 is

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5.0

QS2150

This large frame circuit breaker is rated for 150 amperes and features a plug-in mount connection type. The QS2150 is certified to UL 489 and CSA standards, ensuring safety and reliability in various

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5.0

Q25000S01

This circuit breaker features a dual-pole configuration and is rated for an interrupt capacity of 10 KAIC. It can function in environments with non-condensing humidity levels up to 80%. Designed for i

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5.0

QA115AFCHH

This AFCI supports detection of various arc faults including line-to-ground and line-to-neutral scenarios. It is classified as a combination-type AFCI and is compatible with specific breakers such as

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5.0

QJ22B200H

This circuit breaker features a two-pole configuration and employs a thermal magnetic trip mechanism. With a short circuit rating of 25 kAIC at 240 volts AC, it is capable of safeguarding electrical s

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5.0

QF230A

The QF230A includes a thermal-magnetic trip unit that ensures reliable operation with ground-fault sensitivity set at 5 mA. It has an interrupting capacity of 10 kA and supports single-phase applicati

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5.0
Showing 41-50 of 73 results