QRH22B250
This circuit breaker employs a thermal magnetic trip unit, ensuring effective protection. It is engineered with a QRH2 frame and requires bolt-on mounting. The line side connection is achieved via a p
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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.
HQR22B225
This circuit breaker features a two-pole configuration and is classified under the HQR frame type. It supports an interrupt rating of up to 65 kA and operates within a frequency range of 50/60 Hz. The
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HQR23B125
This circuit breaker comes with a thermal-magnetic trip type for reliable protection. It has a fixed thermal and magnetic trip adjustability. The breaker can handle an interrupting rating of 65 kA at
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QR22B150
This model features a thermal magnetic trip type with long-time and instantaneous trip functions. The QR22B150 breaker is rated for 10 kA interrupt capacity at 240 VAC and has two poles. It is mountab
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QR23B225
This Siemens QR Series circuit breaker consists of three poles and has a HACR rating for versatility in heating, air conditioning, and refrigeration applications. It establishes connections using scre
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QRH22B175
This circuit breaker features two poles and operates on a single-phase system. It boasts an AIC rating of 25 kA at 240 VAC, ensuring reliable performance during fault conditions. Equipped with both lo
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QRH23B100
This circuit breaker is structured with three poles and utilizes a thermal magnetic trip type for effective overload and short-circuit protection. It supports a maximum interrupt rating of 25 kAIC at
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S01QR2
With a rated voltage range of 120 to 240 V AC, the S01QR2 operates effectively between a minimum frequency of 50 Hz and a maximum frequency of 60 Hz. Suitable for locations up to 1000 meters above sea
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SQRD
This mounting strap supports horizontal orientation using a twin mount configuration and complies with UL 67 and RoHS standards. It is suitable for use with QR2, QRH2, HQR2, and HQR2H breaker frames w
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HQR23B175
This three-pole circuit breaker features a bolt-on connection type and a load side lug terminal configuration. It incorporates thermal magnetic tripping functions for both long-time and instantaneous
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