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Siemens QN2175RH Molded Case Circuit Breaker
- 175A
- 2 Pole
- Plug-On
Siemens
QN2175RH
Molded Case Circuit Breaker
Brand
Siemens
SKU
QN2175RH
Quantity
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Siemens QN2175RH - 175A 2 Pole Molded Case Circuit Breaker
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Description
The QN2175RH is part of Siemens' Q Series, engineered for use as a main or branch breaker in compatible load centers and meter combinations. This 175-amp, 2-pole molded case circuit breaker utilizes a plug-on mounting style for straightforward installation. It serves as a direct replacement for the legacy MPD2175RH. Rated at 22 kAIC at 120/240VAC, this unit features a factory-installed reverse handle and common trip functionality to ensure comprehensive circuit protection.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QN2175RH |
| Series | QNH |
| Amperage | 175A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers, Meter Combinations |
| Wire Gauge | 4 AWG - 300 kcmil (Cu/Al) |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment, Shunt Trip |
|---|---|
| Accessories | Reverse Handle (Factory Installed) |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, Reverse Handle, Common Trip, Requires 4 Panel Spaces |
Product FAQs
6 answersWhat types of enclosures are compatible with the QN2175RH?
This breaker is designed for use in Siemens load centers and meter combinations that accept Type QNH main breakers.
What does the RH in the QN2175RH catalog number indicate?
The RH stands for a factory-installed reverse handle configuration. This design supports installations where handle orientation is critical for accessibility or specific panel layouts.
Can the Siemens QN2175RH replace legacy Murray breakers?
Yes, this unit serves as a direct replacement for the obsolete Murray MPD2175RH circuit breaker.
Which padlocking device is compatible with this breaker?
For lockout and tagout safety procedures, use the Siemens QLN3 padlocking device.
Can this breaker be used as a main breaker?
Yes, it is engineered to function as either a main or branch breaker in compatible residential and commercial power distribution systems.
How does the thermal-magnetic trip mechanism operate in this unit?
The thermal component responds to sustained overloads by heating a bimetallic strip, while the magnetic component provides an instantaneous trip response to short-circuit faults.
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