Siemens QSH2100 Molded Case Circuit Breaker
- 100A
- 2 Pole
- Plug-On
Quantity
Siemens QSH2100 - 100A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for residential and commercial distribution, the Siemens QSH2100 is a 2-pole, 100A molded case circuit breaker. It provides reliable thermal-magnetic protection for main breaker applications. This plug-on MCCB mounts into Siemens Power Mod meter stacks, Uni-PAK metering, and WMM series load centers. The side-wired configuration ensures a straightforward installation process.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QSH2100 |
| Series | QSH |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 42kA @ 120/240VAC |
| 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
5 answersWhat equipment is the Siemens QSH2100 circuit breaker designed for?
The QSH2100 is a main breaker designed for use in Siemens Power Mod meter stacks, Uni-PAK metering, WMM series residential meter stacks, and compatible Siemens load centers.
Can the QSH2100 be installed in systems that only require a 10kAIC or 22kAIC rating?
Yes. With its 42kAIC interrupting rating, the QSH2100 exceeds the requirements for 10kAIC and 22kAIC applications and can be safely installed where lower fault current ratings are specified.
What is the difference between the Siemens QS2100, QS2100H, QSH2100, QS2100HH, and HQS2100H?
These breakers share the same physical QS frame and 100A rating but differ in their interrupting capacity. The QS2100 is rated at 10kAIC, the QS2100H at 22kAIC, the QSH2100 at 42kAIC, the QS2100HH at 65kAIC, and the HQS2100H at 100kAIC.
Can the QSH2100 replace older Murray main breakers?
Yes, the Siemens QSH2100 is a direct, modern replacement for discontinued Murray MD-H series breakers, such as the MDH2100, with offset lugs. This makes it compatible with many legacy Murray and Crouse-Hinds metering panels.
Can the QSH2100 be used as a tenant main breaker in multi-family metering?
Yes, the QSH2100 is specifically designed to serve as a dedicated tenant main breaker in multi-family residential and commercial metering applications.
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