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Siemens HQR23B225H Molded Case Circuit Breaker
- 225A
- 3 Pole
- Bolt-On
Siemens
HQR23B225H
Molded Case Circuit Breaker
Brand
Siemens
SKU
HQR23B225H
Quantity
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Siemens HQR23B225H - 225A 3 Pole Molded Case Circuit Breaker
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Description
Built to handle severe fault currents, the Siemens HQR23B225H features an extra-high 100kAIC interrupting capacity at 240VAC. This 225A bolt-on breaker is designed for commercial and industrial power distribution systems. It installs into Siemens P1, P2, and P3 panelboards, offering a straightforward replacement path for older HQJ23B225H models. The thermal-magnetic trip mechanism provides dependable long-time and instantaneous protection, while the reverse feed design adds wiring flexibility.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HQR23B225H |
| Series | HQR |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards, Switchboards, Enclosures |
| 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Extra High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip, Trip-Free Mechanism |
Product FAQs
6 answersWhich panelboards are compatible with the HQR23B225H?
This bolt-on circuit breaker is designed for installation in Siemens P1, P2, and P3 panelboards, as well as compatible Siemens switchboards and enclosures.
Can the HQR23B225H replace older HQJ frame breakers?
Yes, the HQR23B225H is part of the QJ/QR frame group and serves as a direct replacement for the older HQJ23B225H model in Siemens power distribution systems.
Why choose the HQR23B225H over standard QR frame breakers?
The HQR23B225H is engineered with an extra-high interrupting capacity of 100kA at 240V. This makes it necessary for commercial and industrial systems with severe available fault currents where standard 10kA or 65kA QR breakers would not meet code requirements.
Are the trip settings on the HQR23B225H adjustable?
No, this breaker features a non-interchangeable thermal-magnetic trip unit with fixed thermal and fixed magnetic settings for long-time and instantaneous protection.
What type of wire is compatible with the factory lugs?
The included lugs are dual-rated for both aluminum and copper conductors, accepting wire sizes ranging from 3 AWG up to 300 kcmil.
Does this breaker provide ground fault or arc fault protection?
No, the HQR23B225H is a standard thermal-magnetic breaker. It provides basic overload and short-circuit protection but does not include integrated ground fault (GFCI) or arc fault (AFCI) circuitry.
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