Built for demanding industrial applications, the Siemens QJ23B060H is a 3-pole, 60A MCCB offering high interrupting capacity. It utilizes a thermal-magnetic trip unit for reliable long-time and instantaneous (LI) protection. This unit-mount breaker installs easily into Siemens meter centers, panelboards, and switchboards. It comes equipped with lug terminals accommodating up to 300 kcmil wire. With a robust 42 kAIC rating at 240VAC, this QJ frame device handles elevated fault currents.
Which Siemens panelboards accept the QJ23B060H circuit breaker?
This QJ-frame breaker is compatible with Siemens meter centers, switchboards, and P-Series panelboards, including P1, P2, and P3 distribution panels.
What is the difference between the Siemens QJ and QR breaker frames?
The QR frame is the direct, modern successor to the legacy QJ frame. QR breakers share the exact same form factor and mounting dimensions as QJ breakers like the QJ23B060H, allowing for a direct drop-in retrofit.
What does the H suffix indicate on the QJ23B060H catalog number?
The H indicates a high interrupting rating. While standard QJ23B060 breakers are rated for 10kAIC at 240VAC, the QJ23B060H is built to safely clear fault currents up to 42kAIC.
Are lugs included with the QJ23B060H, and what are the conductor limits?
Yes, load-side lugs are included standard. The mechanical lugs accept 6 AWG to 300 kcmil copper conductors, or 4 AWG to 300 kcmil aluminum conductors.
How is the QJ23B060H installed into a panelboard?
This is a unit-mount, bolt-on circuit breaker. It requires bolted connections to the panelboard bus or mounting strap, which provides a secure, vibration-resistant connection for commercial applications.
Are the thermal and magnetic trip points adjustable on this breaker?
No, the QJ23B060H utilizes a fixed thermal and fixed magnetic (LI) trip unit. Both the long-time overload and instantaneous short-circuit protection settings are factory calibrated and non-adjustable.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 10 reviews.
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.