Designed for metering applications, the Square D QOM2175MM is a 175A, two-pole main circuit breaker. It delivers dependable thermal-magnetic protection for multi-family service setups. This bolt-on breaker fits Square D MP Meter-Pak and EZ Meter-Pak metering centers. Box lugs accommodate 4 AWG to 300 kcmil wire for flexible installation. With a 10kAIC rating at 120/240VAC, it meets standard interrupting requirements. The Visi-Trip feature provides clear visual confirmation of a tripped state.
MP Meter-Pak Meter Centers, EZ Meter-Pak Metering Equipment
Wire Gauge
4 AWG - 300 kcmil (Al/Cu)
Max Wire
300 kcmil
Min Wire
4 AWG
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
Shunt Trip, Auxiliary Switch, Alarm Switch
Accessories
Lugs Included
Standards
CSA C22.2 No. 5, UL 489
Approval
CSA, UL
Temp Rating
40C
Construction Features
Visual Trip Indicator, HACR Rated, Main Breaker
Product FAQs
6 answers
What equipment is the QOM2175MM designed to fit?
This breaker is specifically engineered for use in Square D MP Meter-Pak meter centers and EZ Meter-Pak metering equipment. It serves as a main breaker for these multi-family service setups.
What is the difference between the QOM2175MM and the QOM2175VH?
The QOM2175MM is designed for MP and EZ Meter-Pak metering centers and has a 10kAIC rating. The QOM2175VH is used as a main breaker in standard QO and Homeline load centers and features a higher 22kAIC rating.
Can I install the QOM2175MM in a standard QO or Homeline residential load center?
No. While it shares the QOM frame, the MM suffix designates it for Meter Main applications like Meter-Pak centers. Standard QO and Homeline load centers typically require the VH variant, such as the QOM2175VH.
What does the MM suffix mean on this Square D breaker?
The MM indicates that the breaker is designed for Meter Main applications. It is specifically configured to mount in Square D metering equipment rather than standard residential breaker panels.
How does the QOM2175MM mount inside the meter center?
It features a bolt-on mounting design that secures directly to the bus assembly of compatible MP and EZ Meter-Pak metering equipment, ensuring a stable and reliable connection for primary service feeds.
Is there a higher interrupting rating alternative to the QOM2175MM?
Yes, if your metering equipment requires a higher short-circuit current rating, Square D offers the QOM2175MVH, which provides a 22kAIC rating compared to the 10kAIC of the standard MM version.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 7 reviews.