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Siemens QJ23B110 Molded Case Circuit Breaker
- 110A
- 3 Pole
- Bolt-On
Siemens
QJ23B110
Molded Case Circuit Breaker
Brand
Siemens
SKU
QJ23B110
Quantity
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Siemens QJ23B110 - 110A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Siemens QJ23B110 - 110A 3 Pole Molded Case Circuit Breaker
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| Brand | Siemens |
|---|---|
| Part Number | QJ23B110 |
| Series | QJ |
| Amperage | 110A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | QJ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, Meter Centers, Enclosures |
| 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, 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 |
Quantity
Siemens QJ23B110 - 110A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | QJ23B110-R |
| Series | QJ |
| Amperage | 110A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | QJ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, Meter Centers, Enclosures |
| 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, 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 |
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Description
Built for commercial distribution networks, the Siemens QJ23B110 is a 3-pole, 110A molded case circuit breaker offering fixed thermal-magnetic trip functions. It mounts securely into Siemens P1, P2, and P3 panelboards, as well as compatible meter centers. Delivering a 10kAIC rating at 240VAC, this QJ frame breaker ensures reliable long-time and instantaneous protection. It features a reverse-feed capable design and is HACR rated. This unit is officially replaced by the updated QR23B110.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QJ23B110-R |
| Series | QJ |
| Amperage | 110A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | QJ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, Meter Centers, Enclosures |
| 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, 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 |
Product FAQs
6 answersWhat panelboards are compatible with the Siemens QJ23B110?
This breaker is designed for installation in Siemens P1, P2, and P3 panelboards, as well as compatible Siemens meter centers and individual enclosures.
What is the modern replacement for the QJ23B110?
The QJ frame has been superseded by the QR frame series, making the QR23B110 the modern equivalent. However, installing a QR breaker into an older panelboard originally configured for QJ breakers requires a specific retrofit mounting strap or hardware kit based on your panel type.
What wire sizes are accepted by the terminals on this breaker?
The standard load side lugs accept 6 AWG to 300 kcmil copper (Cu) conductors, or 4 AWG to 300 kcmil aluminum (Al) conductors.
What type of trip unit is equipped on the QJ23B110?
It features a non-interchangeable thermal magnetic trip unit with fixed long-time and instantaneous (LI) trip functions.
Can the QJ23B110 be installed in Eaton or GE panelboards?
No. Siemens QJ frame circuit breakers are strictly UL listed for use in compatible Siemens and legacy ITE panelboards. Installing them in third-party panels voids the UL listing and creates a severe safety hazard.
How does this breaker connect to the panelboard bus?
The QJ23B110 utilizes a bolt-on connection. It secures directly to the panelboard bus using mounting hardware, which provides a rigid, low-resistance connection required for commercial and industrial power distribution.
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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.