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Siemens HQR22B225 Molded Case Circuit Breaker
- 225A
- 2 Pole
- Bolt-On
Siemens
HQR22B225
Molded Case Circuit Breaker
Brand
Siemens
SKU
HQR22B225
Quantity
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Siemens HQR22B225 - 225A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial applications, the Siemens HQR22B225 is a 2-pole, 225A molded case circuit breaker from the SENTRON family. It features a robust thermal-magnetic trip unit with long-time and instantaneous functions. Designed as a seamless bolt-on replacement for legacy QJ frame breakers, it mounts into Siemens P1, P2, and P3 panelboards and switchboards. Rated at 65 kAIC at 240VAC, this HACR-rated breaker supports reverse feed installations for maximum flexibility.Specifications
| Brand | Siemens |
|---|---|
| Series | HQR |
| Amperage | 225A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC |
| Frame Type | HQR |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, Switchboards, Meter Centers |
| Wire Gauge | 3 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 3 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Reverse Feed, Push-to-Trip, Non-Interchangeable Trip, High Interrupting Capacity |
Product FAQs
7 answersWhat panelboards are compatible with the HQR22B225 circuit breaker?
This bolt-on breaker is designed for installation in Siemens P1, P2, and P3 panelboards, as well as compatible switchboards and meter centers.
Can the HQR22B225 be used to replace older QJ frame breakers?
Yes, the SENTRON QR frame serves as a direct, upgraded bolt-on replacement for legacy QJ frame circuit breakers, such as the QJ22B225 or QJH22B225, fitting into the same Siemens panelboard spaces.
What is the difference between the QR22B225 and the HQR22B225?
The primary difference is the interrupting capacity. The standard QR22B225 is rated for 10kAIC at 240VAC, while the HQR22B225 is a high-interrupting breaker rated for 65kAIC at 240VAC.
What wire sizes are accepted by the lugs on the HQR22B225?
The factory-installed lugs accept 3 AWG through 300 kcmil aluminum or copper conductors.
Is the Siemens HQR22B225 suitable for reverse feed applications?
Yes, this QR frame circuit breaker supports reverse feed configurations, allowing it to be back-fed in compatible panels.
Does this breaker feature a push-to-trip button for testing?
Yes, the HQR22B225 includes a push-to-trip button on the face of the breaker to manually verify the mechanical operation of the tripping mechanism.
Is the HQR22B225 HACR rated?
Yes, this breaker is HACR rated, making it suitable for protecting heating, air conditioning, and refrigeration equipment circuits.
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