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Siemens QJ23B15000S01 Molded Case Circuit Breaker

  • 150A
  • 3 Pole
  • Bolt-On
Siemens QJ23B15000S01
Molded Case Circuit Breaker
Brand Siemens
SKU QJ23B15000S01
Select Item Condition
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  • 150A
  • 3 Pole
  • Bolt-On

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Siemens QJ23B15000S01 3 Pole Circuit Breaker

Siemens QJ23B15000S01 - 150A 3 Pole Molded Case Circuit Breaker

Re-Certified

$752.38 In Stock

Quantity

Description

Built for commercial facilities, the Siemens QJ23B15000S01 is a 3-pole, 150A molded case circuit breaker. It provides thermal-magnetic protection while allowing remote circuit disconnection via an integrated 120/240VAC shunt trip. Engineered with a bolt-on mounting style, it ensures a secure connection in Siemens P1, P2, and P3 panelboards. For legacy upgrades, it is replaced by the QR23B150 with an S01QR2 shunt trip. It delivers a 10kAIC rating at 240VAC and features fixed LI trip functions.

Specifications

Key specifications
Brand Siemens
Part Number QJ23B15000S01
Series QJ
Amperage 150A
Poles 3
Mounting Style Bolt-On
Voltage 240VAC
Phase 3
AIC Rating 10kA @ 240VAC
Fit and installation
Terminal Type Lugs
For Use With Siemens Panelboards (P1, P2, P3), Switchboards, 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)
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Lug Kits, Padlock Attachment, Rotary Handle
Accessories Shunt Trip (Factory Installed), Load Side Lugs Included
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

5 answers
What is the recommended replacement for the discontinued QJ23B15000S01?

Siemens recommends replacing this legacy QJ frame breaker with a QR23B150 circuit breaker paired with an S01QR2 shunt trip accessory.

What does the 00S01 suffix indicate on this circuit breaker?

The 00S01 suffix indicates that the breaker includes a factory-installed 120/240V AC shunt trip, which allows for remote circuit disconnection via an external voltage signal.

Can this QJ frame breaker be installed in modern Siemens panelboards?

Yes, this bolt-on breaker is compatible with Siemens P1, P2, and P3 panelboards, as well as standard switchboards and enclosures designed for QJ or QR frame devices.

Does this breaker require copper wire, or is aluminum acceptable?

The factory lugs are dual-rated for both copper and aluminum conductors. They accept 6 AWG to 300 kcmil copper wire or 4 AWG to 300 kcmil aluminum wire.

Can the trip curve be adjusted for specific load requirements?

No, the thermal-magnetic trip unit is fixed. It provides standard long-time and instantaneous (LI) protection without adjustable dials.

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Reviews

4.8
Rated 4.8 out of 5 stars
Based on 10 reviews
Rating
Ratings
10 reviews
  • WM
    William M.
    Verified Buyer
    Reviewing
    Siemens QJ23B125 - 125A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/11/26
    Breaker

    Perfect

  • TN
    Timothy N.
    Verified Buyer
    Reviewing
    Siemens QJ23B200 - 200A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/27/26
    10% off

    Arrived on time, worked when turned on

  • WK
    Willie K.
    Verified Buyer
    Reviewing
    Siemens QJ23B150 - 150A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 4 out of 5 stars
    7/22/26
    Breaker

    The Breaker arrive fast and in good condition however when I looked at the specs it was not the correct one.

  • PG
    Phil G.
    Verified Buyer
    Reviewing
    Siemens QJ23B200 - 200A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/3/26
    Great 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.

  • VC
    Vladimir C.
    Verified Buyer
    Reviewing
    Siemens QJ22B200 - 200A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 4 out of 5 stars
    12/10/25
    4 start

    The breaker was it perfect match.,but it was missing the two top bolts.