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Siemens E1SQJ23B20000S01 Molded Case Circuit Breaker

  • 200A
  • 3 Pole
  • Bolt-On
Siemens E1SQJ23B20000S01
Molded Case Circuit Breaker
Brand Siemens
SKU E1SQJ23B20000S01
Select Item Condition
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  • 200A
  • 3 Pole
  • Bolt-On

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Siemens E1SQJ23B20000S01 - 200A 3 Pole Molded Case Circuit Breaker

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$1,147.50 In Stock

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Description

Built for commercial applications, the Siemens E1SQJ23B20000S01 is a complete, factory-assembled enclosed circuit breaker. It features a NEMA 1 surface-mount enclosure housing a 200A, 3-pole QJ frame molded case breaker. This unit includes a factory-installed 120/240VAC shunt trip and load-side lugs, streamlining installation for service entrance protection. It replaces legacy QR2N1 and QR23B200 configurations. Rated 10 kAIC at 240VAC, it delivers reliable thermal-magnetic (LI) protection.

Specifications

Key specifications
Brand Siemens
Series QJ
Amperage 200A
Poles 3
Mounting Style Bolt-On
Voltage 240VAC
Phase 3
AIC Rating 10kA @ 240VAC
Fit and installation
Frame Type QJ
Terminal Type Lugs
For Use With Service Entrance, Individual Circuits
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 Auxiliary Switch, Alarm Switch, Line and Load Lugs
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, Common Trip, Quick-Make/Quick-Break, Trip-Free Mechanism
Special Features Factory Enclosed

Product FAQs

7 answers
What types of panelboards are compatible with the E1SQJ23B20000S01 breaker?

This QJ frame breaker is designed for installation in Siemens P1, P2, and P3 panelboards, as well as compatible switchboards and meter centers.

Is this breaker a direct replacement for the standard QJ23B200?

Yes, the E1SQJ23B20000S01 shares the exact same QJ frame footprint, 200A rating, and bolt-on mounting as the standard QJ23B200, making it a direct replacement for commercial distribution equipment.

Can I use a QR frame breaker to replace this QJ frame model?

Yes, the newer Siemens QR frame (such as the QR23B200) was designed as the direct replacement for the legacy QJ frame. Both frames share the same form factor and mounting dimensions for easy retrofitting.

Does this breaker require a specific mounting kit for panelboard installation?

Yes, when installing in Siemens P1, P2, or P3 panelboards, QJ frame breakers require specific strap kits or mounting hardware. The exact kit depends on whether the breaker is single-mounted or twin-mounted in the panel.

Are the trip settings adjustable on this circuit breaker?

No, the E1SQJ23B20000S01 features a fixed thermal-magnetic trip unit with non-interchangeable long-time and instantaneous trip functions.

Is the E1SQJ23B20000S01 suitable for reverse feed applications?

Yes, Siemens QJ frame breakers support reverse feed applications and are HACR rated for use with heating, air conditioning, and refrigeration equipment.

Can I install this QJ frame breaker in a panelboard from a different manufacturer?

No. To maintain the UL listing and ensure safe operation, Siemens QJ frame breakers must only be installed in Siemens or legacy ITE panelboards that are specifically labeled to accept them.

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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.