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Siemens HQR22B100H Molded Case Circuit Breaker
- 100A
- 2 Pole
- Bolt-On
Siemens
HQR22B100H
Molded Case Circuit Breaker
Brand
Siemens
SKU
HQR22B100H
Quantity
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Siemens HQR22B100H - 100A 2 Pole Molded Case Circuit Breaker
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Description
Built for high-fault environments, the Siemens HQR22B100H is a 2-pole, 100A molded case circuit breaker offering robust thermal-magnetic protection. It is engineered for commercial power distribution systems requiring reliable performance. This bolt-on breaker mounts into Siemens P1, P2, and P3 panelboards or switchboards. It is an ideal replacement for legacy QJ frame breakers. Delivering an impressive 100kAIC at 240VAC, it features a push-to-trip button and is fully HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HQR22B100H |
| Series | HQR |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC |
| 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, High Interrupting Capacity, Push-to-Trip Button |
Product FAQs
8 answersWhich Siemens panelboards accept the HQR22B100H circuit breaker?
This bolt-on breaker is engineered for installation in Siemens P1, P2, and P3 panelboards, as well as compatible Siemens switchboards.
Can the HQR22B100H be used to replace older QJ frame breakers?
Yes, the Siemens QR frame series is the direct, modern replacement for legacy QJ frame circuit breakers in existing power distribution systems.
What wire sizes and materials are supported by the HQR22B100H lugs?
The standard load side lugs accept either aluminum or copper conductors ranging from 3 AWG to 300 kcmil.
Is the Siemens HQR22B100H HACR rated for HVAC equipment?
Yes, this breaker carries an HACR rating, ensuring it is certified for the specific inrush currents and operational demands of heating, air conditioning, and refrigeration systems.
How is the HQR22B100H secured to the panelboard bus?
It utilizes a bolt-on connection, which provides a highly secure, vibration-resistant mechanical and electrical bond to the panelboard busbars.
What type of protection does the HQR22B100H trip unit provide?
It is equipped with a fixed thermal-magnetic trip unit featuring Long-Time and Instantaneous (LI) functions to reliably clear overloads and short circuits.
Can this breaker be used in environments with high available fault currents?
Yes, the HQR22B100H is designed for high-fault environments, offering a robust 100kAIC interrupting rating at 240V AC to safely clear severe short circuits.
Can I install the HQR22B100H in a standard load center?
No, this is a bolt-on molded case circuit breaker designed specifically for commercial panelboards and switchboards. It is not compatible with standard residential plug-on load centers.
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