QR22B175
This circuit breaker features two poles and is rated for thermal magnetic tripping. It has an interrupting capacity of 10 kAIC at 240 V, ensuring robust circuit protection. This unit is compatible wit
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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.
QR23B125
This circuit breaker features a thermal-magnetic trip unit and includes long-time and instantaneous trip functions. It is constructed for three-phase systems and includes three poles, making it versat
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QRH23B125
This molded case circuit breaker accommodates a frequency rating of 50/60 Hz and provides an interrupt rating of 25 kAIC at 240 VAC. It features a bolt-on connection for load side terminals and a plug
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QRH22B200
This circuit breaker consists of two poles and is suitable for a single-phase setup. It possesses an interrupt rating of 25 kA at 240 V AC, ensuring robust performance during adverse conditions. The f
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HQR22B200
This two-pole circuit breaker operates in a single phase and utilizes a thermal-magnetic trip unit for reliable performance. The interruption capacity is rated at 65 kA at 240 volts. The design allows
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HQR23B150H
This breaker offers long-time and instantaneous trip features, along with an impressive interrupt rating of 100 kA at 240 V. It is suitable for three-phase systems and operates efficiently within a fr
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HQR23B250
Suited for both long-time and instantaneous trip functions, this unit consists of three poles. The HQR23B250 model has a high interrupt rating of 65 kA at 240 V, ensuring reliable operation under faul
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HQR23B250H
This circuit breaker accommodates three poles and incorporates thermal-magnetic trip functions. It is rated for a high interrupting capacity of 100 kA at 240 VAC, making it suitable for rigorous elect
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QR22B125
This model features two poles and operates at a thermal magnetic trip type, ensuring efficient response to overloads and short circuits. The circuit breaker has an interrupt rating of 10 KAIC at 240 V
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QR23B250
The QR23B250 features three poles and utilizes a thermal magnetic trip mechanism. Its interrupting capacity is rated at 10 kAIC, providing reliable protection against overcurrents. This circuit breake
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