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Siemens QJ23B100H Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Siemens
QJ23B100H
Molded Case Circuit Breaker
Brand
Siemens
SKU
QJ23B100H
Quantity
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Siemens QJ23B100H - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Siemens QJ23B100H - 100A 3 Pole Molded Case Circuit Breaker
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Quantity
| Brand | Siemens |
|---|---|
| Part Number | QJ23B100H |
| Series | QJ |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Meter Centers, Panelboards, Switchboards |
| Wire Gauge | 6 AWG - 300 kcmil (Cu), 4 AWG - 300 kcmil (Al) |
| Max Wire | 300 kcmil |
| Min Wire | 6 AWG (Cu), 4 AWG (Al) |
| 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip, Reverse Feed |
Quantity
Siemens QJ23B100H - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | QJ23B100H-R |
| Series | QJ |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Meter Centers, Panelboards, Switchboards |
| Wire Gauge | 6 AWG - 300 kcmil (Cu), 4 AWG - 300 kcmil (Al) |
| Max Wire | 300 kcmil |
| Min Wire | 6 AWG (Cu), 4 AWG (Al) |
| 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip, Reverse Feed |
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Description
Designed for maximum reliability, this 100-amp high-interrupting circuit breaker protects critical commercial and industrial electrical infrastructure. The versatile unit-mount construction fits securely into Siemens switchboards, panelboards, and multi-family meter centers. With a substantial 42kAIC capacity at 240V, it safely clears severe short circuits. This non-interchangeable trip unit is HACR rated and can be replaced by the HQR23B100 for modernizations.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QJ23B100H-R |
| Series | QJ |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Meter Centers, Panelboards, Switchboards |
| Wire Gauge | 6 AWG - 300 kcmil (Cu), 4 AWG - 300 kcmil (Al) |
| Max Wire | 300 kcmil |
| Min Wire | 6 AWG (Cu), 4 AWG (Al) |
| 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip, Reverse Feed |
Product FAQs
6 answersWhat equipment is the Siemens QJ23B100H designed to be installed in?
This bolt-on breaker is compatible with Siemens meter centers, panelboards, and switchboards that are configured to accept QJ or QR frame molded case circuit breakers.
What wire sizes are supported by the load side lugs on the QJ23B100H?
The factory-installed load lugs accept copper conductors from 6 AWG to 300 kcmil and aluminum conductors from 4 AWG to 300 kcmil.
What does the LI trip function indicate on this QJ2H series breaker?
The LI designation means the thermal-magnetic trip unit provides fixed Long-Time (L) protection for overloads and fixed Instantaneous (I) protection for short circuits. The trip mechanism is non-interchangeable.
Is the QJ23B100H a legacy frame, and what is the modern replacement?
Yes, the QJ2H series is a legacy QJ frame breaker. For modernizations, it can be replaced by the newer QR frame equivalent, such as the HQR23B100. Note that installing a QR frame in an older panel may require a specific mounting kit.
How does the QJ23B100H mount into the electrical enclosure?
This is a unit mount, bolt-on circuit breaker. It secures directly to the panelboard or switchboard bus using bolted connections, ensuring a secure and reliable contact for commercial applications.
Can the thermal or magnetic trip settings on the QJ23B100H be adjusted?
No, this breaker features fixed thermal and fixed magnetic trip settings. The overcurrent and short-circuit protection levels are factory-set and cannot be modified in the field.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 10 reviews.
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Rating
10 reviews
- WMWilliam M.Verified BuyerReviewingSiemens QJ23B125 - 125A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/11/26Breaker
Perfect
- TNTimothy N.Verified BuyerReviewingSiemens QJ23B200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/27/2610% off
Arrived on time, worked when turned on
- WKWillie K.Verified BuyerReviewingSiemens QJ23B150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars7/22/26Breaker
The Breaker arrive fast and in good condition however when I looked at the specs it was not the correct one.
- PGPhil G.Verified BuyerReviewingSiemens QJ23B200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/3/26Great Service
I was in a bind for this breaker that was for an elevator, and Nick got me all the components even though their blizzard! Will use them for all my specialty breakers.
- VCVladimir C.Verified BuyerReviewingSiemens QJ22B200 - 200A 2 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars12/10/254 start
The breaker was it perfect match.,but it was missing the two top bolts.