Siemens QSH2175 Molded Case Circuit Breaker
- 175A
- 2 Pole
- Plug-On
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Siemens QSH2175 - 175A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
High-capacity electrical distribution demands robust main breakers like this 175-amp QS frame model. It delivers reliable thermal-magnetic protection for demanding residential and commercial service entrances. Designed specifically for Siemens Power Mod meter stacks, WMM series, and Uni-PAK metering equipment. The plug-on mounting style ensures a secure fit within compatible load centers. A 42kAIC rating provides superior fault clearance, while the side-wired design simplifies installation.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QSH2175 |
| Series | QSH |
| Amperage | 175A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 42kA @ 120/240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Power Mod Meter Stacks, Siemens Uni-PAK, Siemens WMM Series, Siemens Load Centers |
| Wire Gauge | 3 AWG - 300 kcmil (Cu/Al) |
| Max Wire | 300 kcmil |
| Min Wire | 3 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40°C |
| Construction Features | 42kA High Interrupting Rating, Side-Wired Design, HACR Rated |
Product FAQs
6 answersWhat equipment is the Siemens QSH2175 compatible with?
The QSH2175 is designed for use in Siemens Power Mod meter stacks, Uni-PAK metering, WMM series, and compatible Siemens load centers. It serves as a main breaker in these applications.
Does the QSH2175 require filler plates when installed in a meter stack?
No. The QS frame design takes up the same physical space as standard 100A QP breakers, eliminating the need for costly filler plates in your panel.
What is the wiring configuration for the QSH2175?
This breaker features an exclusive side-wired design with single right-hand bend wiring. This configuration saves wiring space and eliminates the need for difficult S-bends during installation.
What are the alternate AIC rated versions of the 175A QS frame breaker?
If your application requires a different interrupting capacity, Siemens offers the QS2175 (10kAIC), QS2175H (22kAIC), QS2175HH (65kAIC), and HQS2175H (100kAIC) as direct 175A alternatives to the 42kAIC QSH2175.
Are there any wiring restrictions when installing other breakers above the QSH2175?
Yes. If a Type QP, QPH, HQP, MP-T, MP-HT, or MP-MT breaker is installed directly above the QSH2175 in a meter stack or panel, the upper breaker is limited to a maximum wire size of 1 AWG copper or aluminum.
Can the QSH2175 replace older Murray main breakers?
Yes, the QS frame breakers, including the QSH2175, are exact replacements for legacy Murray MDH2175 main breakers used in compatible metering equipment.
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