Siemens HQR23B100HL Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Quantity
Siemens HQR23B100HL - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Unlike panel-mounted versions, the Siemens HQR23B100HL includes both line and load lugs for standalone applications. This 3-pole, 100A unit-mount molded case circuit breaker is perfect for individual enclosures and custom control panels. Operating at 240VAC, it provides a high interrupting rating of 100kAIC. The QR Frame breaker features a trip-free mechanism, reverse feed capability, and serves as a direct substitute for discontinued QJ frame models.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HQR23B100HL |
| Series | HQR |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC |
| Frame Type | HQR |
|---|---|
| Terminal Type | Lugs |
| For Use With | Enclosures, Individual Mounting |
| 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 | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, Push-to-Trip Button, Trip-Free Mechanism, High Interrupting Capacity |
Product FAQs
6 answersCan the HQR23B100HL be used to replace older QJ frame breakers?
Yes. Siemens QR frame breakers are designed as a direct substitute for discontinued QJ frame models.
Are line and load lugs included with this unit-mount breaker?
Yes, the HQR23B100HL includes factory-installed line and load lugs. The terminals accept 3 AWG to 300 kcmil aluminum or copper conductors.
Is the HQR23B100HL suitable for reverse feeding?
Yes. Siemens QR frame circuit breakers feature reverse feed capability, allowing you to wire the line and load connections in either direction based on your enclosure layout.
Can I install this breaker directly into a standard Siemens panelboard?
No. This is a unit-mount, feed-thru breaker designed for individual mounting in standalone enclosures or custom control panels. It is not designed for standard plug-on or bolt-on panelboard chassis mounting.
What type of protection does the LI trip function provide?
The LI designation means this thermal-magnetic breaker provides fixed Long-Time (L) protection for standard overloads and fixed Instantaneous (I) protection for short-circuit faults.
Will the breaker still trip if the handle is locked or held in the ON position?
Yes. The breaker utilizes a trip-free mechanism, ensuring it will open the circuit during an overload or short-circuit fault regardless of the handle position.
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