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Siemens HQR23B100H Molded Case Circuit Breaker
- 100A
- 3 Pole
- Bolt-On
Siemens
HQR23B100H
Molded Case Circuit Breaker
Brand
Siemens
SKU
HQR23B100H
Quantity
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Siemens HQR23B100H - 100A 3 Pole Molded Case Circuit Breaker
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Description
Delivering an impressive 100kAIC rating at 240VAC, the Siemens HQR23B100H handles demanding high-fault environments. This 3-pole QR Frame breaker uses fixed thermal and magnetic trip elements to ensure reliable overload and short-circuit protection. It mounts via a secure bolt-on connection into Siemens P1, P2, and P3 panelboards or switchboards. Facility managers can also use this unit as an upgraded replacement for older QJ frame circuit breakers.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HQR23B100H |
| Series | HQR |
| Amperage | 100A |
| 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 |
| 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
5 answersCan the HQR23B100H be used to replace older QJ frame breakers?
Yes. The Siemens QR frame is an exact drop-in replacement for discontinued QJ frame breakers. It shares the same form factor and bolt-on mounting for seamless installation in Siemens P1, P2, and P3 panelboards and switchboards.
What are the wire size and torque specifications for the lugs on the HQR23B100H?
The standard lugs accept 3 AWG to 300 kcmil aluminum or copper wire. Torque specifications are 100 in-lb for 3 AWG to 1/0 AWG wire, and 225 in-lb for 2/0 AWG to 300 kcmil wire.
What does the H prefix and suffix signify in the HQR23B100H catalog number?
The H designations indicate a high interrupting capacity. Specifically, the HQR2H type delivers a 100kAIC rating at 240VAC, which is the highest interrupting rating available in the Siemens QR frame family.
Does the HQR23B100H include a push-to-trip feature?
Yes, this QR frame breaker includes a push-to-trip button on the faceplate. This allows electricians to manually test the mechanical tripping mechanism for routine safety and maintenance checks.
Is the HQR23B100H suitable for reverse-feed applications?
Yes. Because the thermal magnetic trip unit is fixed and non-interchangeable, the HQR23B100H is suitable for reverse-feed applications in accordance with UL 489 standards.
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