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Siemens QJ23B100L Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Siemens
QJ23B100L
Molded Case Circuit Breaker
Brand
Siemens
SKU
QJ23B100L
Quantity
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Siemens QJ23B100L - 100A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial applications, the Siemens QJ23B100L provides robust overcurrent protection. This 3-pole, 100A molded case circuit breaker features a unit-mount configuration, making it ideal for individual enclosures. Rated at 10kAIC at 240VAC, it utilizes fixed thermal and magnetic trip units for dependable LI protection. It includes factory-installed line and load lugs and is HACR rated. This legacy QJ frame breaker is replaced by the newer QR23B100L model.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QJ23B100L |
| Series | QJ |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | QJ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Enclosures, Meter Centers, Individual Mounting |
| 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, Undervoltage Release |
|---|---|
| Accessories | Line and Load 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
4 answersWhat is the direct replacement for the discontinued QJ23B100L?
The Siemens QJ frame has been discontinued and replaced by the QR frame. The direct replacement is the QR23B100L, which maintains the same 100A rating, unit-mount configuration, and physical dimensions.
What is the difference between the QJ23B100 and the QJ23B100L?
The QJ23B100 is a bolt-on breaker designed for Siemens P1, P2, and P3 panelboards and includes only load-side lugs. The QJ23B100L is a unit-mount, feed-thru breaker that includes both line and load lugs for use in individual enclosures and meter centers.
Can I field-install internal accessories in the QJ23B100L?
No, internal accessories like shunt trips or auxiliary switches for the legacy QJ frame are factory-installed only. The ability to field-install internal accessories was introduced with the newer QR frame replacement.
How is the QJ23B100L mounted in an electrical system?
This breaker features a unit-mount, feed-thru design. It does not plug or bolt onto a panelboard bus. Instead, it is individually mounted to a backpan or enclosure and wired directly via the provided line and load lugs.
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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.