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Siemens QN2175 Molded Case Circuit Breaker
- 175A
- 2 Pole
- Plug-On
Siemens
QN2175
Molded Case Circuit Breaker
Brand
Siemens
SKU
QN2175
Quantity
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Siemens QN2175 - 175A 2 Pole Molded Case Circuit Breaker
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Description
Part of the QN series, the Siemens QN2175 is a 2-pole, 175-amp molded case circuit breaker built for residential and commercial power distribution. It delivers reliable thermal-magnetic trip protection for main and branch circuits. This plug-on breaker installs into compatible Siemens load centers and meter combinations, requiring four panel spaces for proper mounting. It serves as a direct drop-in replacement for the legacy MPD2175. Rated at 10kAIC, it features common trip functionality.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QN2175 |
| Series | QN |
| Amperage | 175A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers, Meter Combinations |
| Wire Gauge | 1 AWG - 300 kcmil (Cu/Al) |
| Max Wire | 300 kcmil |
| Min Wire | 1 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Padlock Attachment, Shunt Trip |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Common Trip, HACR Rated, Reverse Feed, Requires 4 Panel Spaces |
Product FAQs
7 answersWhich panels are compatible with the Siemens QN2175 circuit breaker?
The QN2175 is designed for use in compatible Siemens load centers, meter combinations, and multi-family metering enclosures that accept QN frame breakers. Always verify acceptance on the panel wiring diagram.
How many panel spaces does the QN2175 require?
This breaker requires four 1-inch panel spaces for installation. It mounts across the busbar, occupying two spaces on the left and two spaces on the right.
Does the QN2175 require a specific mounting orientation?
Yes, this breaker is intended for vertical installation within compatible Siemens load centers and meter combinations.
Is there a higher interrupting rating version of the QN2175?
Yes, the Siemens QN2175H offers a 22kAIC interrupting rating at 240V, compared to the 10kAIC rating of the standard QN2175.
What is the difference between the QN2175 and the QN2175R?
The QN2175R features a factory-installed reverse handle. This is often required for specific bottom-feed or main breaker applications, whereas the standard QN2175 has a standard handle orientation.
Can the QN2175 replace older Murray or Siemens MPD breakers?
Yes, the QN2175 serves as a direct, drop-in replacement for the legacy Siemens and Murray MPD2175 175A main breakers.
Can the QN2175 be used as a main breaker?
Yes, QN frame breakers like the QN2175 are commonly used as main breakers in residential load centers and meter combos, provided the enclosure is rated for a 175A main and accepts QN types.
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