Rated for 22kAIC at 240V, this high-interrupting 175A breaker delivers enhanced fault protection for demanding tenant metering applications. It integrates seamlessly into Siemens Power Mod meter stacks and Uni-PAK systems, replacing legacy MPD2175KH and MDH175 models. The side-wired construction supports right-hand bend wiring without requiring filler plates. It is HACR rated and approved for reverse feed installations.
Main Breaker, HACR Rated, Side-wired, Non-Interchangeable Trip, Common Trip, Reverse Feed, High Interrupting Capacity
Product FAQs
5 answers
Can the Siemens QS2175H replace older Murray or Crouse Hinds breakers?
Yes. Siemens acquired Murray and Crouse Hinds, and the QS2175H is the direct, UL listed replacement for the discontinued Murray and Crouse Hinds MDH2175 175-amp main breakers.
What is the difference between the Siemens QS2175 and the QS2175H?
The H in the QS2175H catalog number indicates a higher interrupting capacity. The QS2175H is rated for 22 kAIC at 240V, whereas the standard QS2175 is rated for 10 kAIC. Always verify the required fault current rating for your specific panel before installation.
Is there a version of this breaker with a higher interrupting rating than 22 kAIC?
Yes. If your application requires a higher fault current rating, the Siemens QS2175HH offers a 65 kAIC interrupting capacity while maintaining the same physical footprint and 175-amp rating.
Which enclosures are compatible with the QS2175H breaker?
This 175-amp main breaker is designed for use in Siemens Power Mod Meter Stacks and Uni-PAK Metering enclosures that accept Q frame or QS frame plug-in breakers.
Is it safe to use a standard 10 kAIC breaker if my meter stack requires a 22 kAIC rating?
No. If your metering equipment or local utility requires a 22 kAIC interrupting rating, you must use the QS2175H or a breaker with an equal or higher rating to safely clear potential fault currents. Installing a standard 10 kAIC breaker in a system with higher available fault current creates a severe fire and explosion hazard.
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.