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Siemens HQR22B250 Molded Case Circuit Breaker
- 250A
- 2 Pole
- Bolt-On
Siemens
HQR22B250
Molded Case Circuit Breaker
Brand
Siemens
SKU
HQR22B250
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Siemens HQR22B250 - 250A 2 Pole Molded Case Circuit Breaker
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Description
Providing reliable 250A circuit protection, the Siemens HQR22B250 is a 2-pole molded case circuit breaker from the SENTRON QR series. It delivers a 65 kAIC interrupting rating at 240VAC, utilizing a fixed thermal-magnetic trip unit for consistent performance. This bolt-on breaker is engineered to replace legacy QJ frame models, ensuring compatibility with Siemens P1, P2, and P3 panelboards and switchboards. It features a trip-free mechanism, reverse feed support, and HACR certification.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HQR22B250 |
| Series | HQR |
| Amperage | 250A |
| 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 |
| 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 Thermal, Fixed Magnetic |
| 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 | HACR Rated, Reverse Feed, Non-Interchangeable Trip, Trip-Free Mechanism, Push-to-Trip Button, High Interrupting Capacity |
Product FAQs
6 answersWhat panelboards are compatible with the Siemens HQR22B250 circuit breaker?
The HQR22B250 is a bolt-on molded case circuit breaker designed for use in Siemens P1, P2, and P3 panelboards, as well as Siemens switchboards.
What is the difference between the Siemens QR22B250, QRH22B250, and HQR22B250?
The difference is the interrupting rating at 240VAC. The standard QR22B250 is rated at 10kAIC, the QRH22B250 is rated at 25kAIC, and the HQR22B250 is the high interrupting version rated at 65kAIC.
What does the L suffix mean on the HQR22B250L catalog number?
The standard HQR22B250 comes with load side lugs only. Adding the L suffix (HQR22B250L) indicates that the breaker is factory supplied with both line and load side lugs.
What are the wire size and torque specifications for the HQR22B250 lugs?
The standard 3TA1QR300 lugs accept 3 AWG to 300 kcmil aluminum or copper wire. The required torque is 100 in-lbs for 3 AWG to 1/0 AWG wire, and 225 in-lbs for 2/0 AWG to 300 kcmil wire.
Is the Siemens HQR22B250 suitable for reverse feed applications?
Yes, Siemens QR frame circuit breakers, including the HQR22B250, are UL Listed for reverse feed applications.
Does the HQR22B250 provide ground fault or arc fault protection?
No, this is a standard thermal magnetic circuit breaker with fixed long time and instantaneous (LI) trip functions. It does not include GFCI or AFCI protection.
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