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Siemens QJ23B200L Molded Case Circuit Breaker
- 200A
- 3 Pole
- Unit Mount
Siemens
QJ23B200L
Molded Case Circuit Breaker
Brand
Siemens
SKU
QJ23B200L
Quantity
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Siemens QJ23B200L - 200A 3 Pole Molded Case Circuit Breaker
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Description
Rated 10 kAIC at 240VAC, this unit mount MCCB provides reliable feed-thru overcurrent protection. The Siemens QJ23B200L is a 3-pole, 200A breaker utilizing a fixed thermal-magnetic trip unit for precise long-time and instantaneous (LI) fault response. The "L" catalog suffix indicates that both line and load side lugs are included. Designed for standalone enclosures and meter centers, it accepts 6 AWG to 300 kcmil wiring. Siemens has designated the QR23B200L as its direct modern replacement.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QJ23B200L |
| Series | QJ |
| Amperage | 200A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| 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 Side Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
5 answersWhat does the "L" suffix mean in the QJ23B200L catalog number?
The "L" indicates that the circuit breaker includes both line and load side lugs. The standard QJ23B200 model is typically supplied without lugs, requiring them to be sourced separately.
What is the modern replacement for the Siemens QJ23B200L?
Siemens has discontinued the legacy QJ frame. The direct modern replacement is the QR23B200L, which shares the same physical footprint and mounting but includes updated features like a push-to-trip button.
What applications and panels is the QJ23B200L designed for?
As a unit-mount, feed-thru breaker, it is primarily used in standalone Siemens enclosures, meter centers, and individual mounting setups. Historically, QJ frame breakers were also installed in Siemens P1, P2, and P3 panelboards and distribution switchboards.
Is the QJ23B200L suitable for reverse feed applications?
Yes, this breaker is HACR rated and supports reverse feeding, allowing the line and load connections to be swapped if required by the installation layout.
Can I adjust the trip settings or swap the trip unit on this breaker?
No. The QJ23B200L is built with a non-interchangeable trip unit. Both the thermal (long-time) and magnetic (instantaneous) trip functions are fixed at the factory and cannot be field-adjusted.
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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.