Built for demanding industrial applications, the Siemens QJH22B175 is a 2-pole, 175A molded case circuit breaker. As part of the Sentron QJ frame lineup, it utilizes a thermal-magnetic trip mechanism to deliver precise protection. The breaker mounts into Siemens P1, P2, and P3 panelboards, as well as compatible meter centers. It maintains existing infrastructure and is replaced by the QRH22B175 model.
HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip, Reverse Feed
Product FAQs
7 answers
Can I install the QJH22B175 in a Siemens P1 panelboard?
Yes, but it requires a specific main or subfeed mounting kit. For original P1 panelboards, you will typically need a kit like the MBKQJ1200 to properly attach the 2-pole bolt-on connections to the panel bus.
What is the difference between the Siemens QJ22B175 and the QJH22B175?
The primary difference is the interrupting rating. The QJ22B175 is rated at 10kAIC at 240V, while the QJH22B175 features a higher interrupting capacity of 22kAIC at 240V.
Is the QJH22B175 a direct replacement for older I-T-E QJ frame breakers?
Yes. Siemens acquired I-T-E and continued manufacturing the QJ frame. The QJH22B175 can directly replace older I-T-E branded breakers with the exact same catalog number.
Has the Siemens QJH22B175 been superseded by a newer frame type?
Yes, Siemens has transitioned from the legacy QJ frame to the newer QR frame. The modern equivalent is the QRH22B175, though mounting hardware requirements may differ depending on your specific panelboard generation.
Is the QJH22B175 suitable for reverse feed applications?
Yes. This breaker features a non-interchangeable trip unit and is suitable for reverse feed applications, allowing it to be back-fed as a main breaker in compatible enclosures.
Is the QJH22B175 HACR rated for HVAC applications?
Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires this specific designation.
Does the QJH22B175 provide ground fault or arc fault protection?
No. This is a standard thermal-magnetic circuit breaker designed strictly for overload and short-circuit protection. It does not include GFCI or AFCI circuitry.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 4 reviews.
Siemens QJH23B060 - 60A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/14/26
Siemens Breaker
Breaker was a new surplus as described. Fast shipping & handling
BL
Bob L.
Verified Buyer
Reviewing
Siemens QJH23B100 - 100A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
6/15/26
Exactly what I needed / Great service
Excellent experience purchasing the Siemens QJH23B100. The breaker was well-packaged, priced competitively, and arrived right on schedule. It's already installed and operating perfectly. Five stars for both the product and SuperBreakers.
WE
Warren E.
Reviewing
Siemens QJH23B225 - 225A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
2/17/20
Great stock along with Great
Great stock along with Great customer service.
ED
Eddie D.
Reviewing
Siemens QJH23B060 - 60A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
11/27/17
Fast delivery
Great service fast delivery and received exact item for a great price.