HQR22B250
The HQR22B250 is engineered for single-phase systems and consists of two poles. It provides protection functions that include both long-time and instantaneous tripping capabilities. The breaker is rat
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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.
HQR23B150
This circuit breaker, HQR23B150, features a thermal magnetic trip type, providing essential overcurrent protection. Capable of handling an interrupting rating of 65 kA at 240 V, it is suitable for var
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HQR23B225H
This model features three poles and utilizes a thermal magnetic trip type for reliable protection. With a QR frame type, the breaker supports both plug-in termination on the line side and lugs on the
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HQR23B225
This 3-pole circuit breaker features a non-interchangeable trip style and uses a thermal magnetic trip unit. It provides protective settings for both long-time and instantaneous functions, with an int
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QRH22B125
With two poles in its design, the QRH22B125 offers thermal magnetic protection, ensuring reliable operation under varying load conditions. Its AIC rating stands at 25 kA at 240 V, providing adequate i
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HQR22B175
This two-pole circuit breaker employs thermal magnetic protection and features both long time and instantaneous functions (LI). It possesses a bolt-on connection type and includes load side lugs for t
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QR23B150
This device is classified under the QR frame type, housing three poles. It can withstand an interrupt rating of 10 kA at 240 volts. Wire connections are compatible with 3 AWG size, making it versatile
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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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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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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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