Siemens QR Circuit Breakers

Siemens QR circuit breakers have compact housing. They are equipped to handle high inrush currents and interrupt ratings, and they support internal accessories that can be field-installed. QR circuit breakers are frequently used in panelboards, power panels, load centers, meter centers, and switchboards. They can operate without derating at ambient temperatures of up to 40 degrees Celsius (104 degrees Fahrenheit). The QR circuit breakers series includes 2-pole and 3-pole breaker models. Many models also support reverse feed features and push-to-trip buttons. Some QR circuit breakers can support maximum interrupt ratings of 100 kA.

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Browse QR Circuit Breakers

Browse available units in our catalog of QR Circuit Breakers.

QR22B200

Designed with a QR frame, this circuit breaker features a total of two poles for seamless connectivity. It supports operational frequencies from 50 to 60 Hz. The NEMA 1/3R enclosure type enhances its

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QR23B175

Characterized by its thermal magnetic protection, this breaker features three poles and offers both long-time and instantaneous trip functions. It is rated for 10 kAIC at 240 VAC, making it suitable f

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QRH22B150

This circuit breaker features two poles and employs thermal magnetic protection. It supports both long-time and instantaneous trip functions. With a 25 kA interrupt rating at 240 V, it provides reliab

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HQR22B100

This model features two poles and operates under thermal magnetic protection mechanisms. It has a noteworthy interrupt rating of 65 kAIC at 240 V and employs a bolt-on connection style for straightfor

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HQR22B150

This circuit breaker features two poles and an AIC rating of 65 kA at 240 V. With a thermal magnetic protection mechanism, its trip functions include long-time and instantaneous options. Additionally,

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QRH23B150

As part of the QR series, the QRH23B150 circuit breaker incorporates a thermal magnetic protection mechanism. It features three poles and functions efficiently at frequencies of 50/60 Hz. With an impr

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