Siemens QS2110H Miniature Circuit Breaker
- 110A
- 2 Pole
- Plug-On
Siemens
QS2110H
Miniature Circuit Breaker
Brand
Siemens
SKU
QS2110H
Quantity
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Siemens QS2110H - 110A 2 Pole Miniature Circuit Breaker
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Description
Built for multi-family metering, the Siemens QS2110H is a 110A, two-pole miniature circuit breaker. It provides reliable thermal-magnetic protection for main tenant feeders. Mounts into Siemens Power Mod meter stacks, Uni-PAK metering centers, and legacy Murray load centers. This plug-on unit replaces the discontinued MDH2110 for seamless upgrades. Rated at 22 kAIC, the breaker features an exclusive side-wired design with right-hand bend wiring, eliminating the need for filler plates.Specifications
| Brand | Siemens |
|---|---|
| Series | QS |
| Amperage | 110A |
| 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 Power Mod Meter Stacks, Uni-PAK Metering, Legacy Murray 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 | UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Side-wired design, Right-hand bend wiring, No filler plates required, Common Trip |
Product FAQs
9 answersWhat equipment is the QS2110H designed to fit?
This breaker is specifically designed for use in Siemens Power Mod meter stacks, Uni-PAK metering systems, and legacy Murray load centers.
Does the QS2110H require a filler plate when installed in a 225A meter stack?
No, the QS frame takes the same space as standard 100A QP breakers, eliminating the need for filler plates in these applications.
How does the side-wired design of the QS breaker benefit installation?
The side-wired design saves wiring space in the enclosure, eliminates difficult S-bends, and allows for single right-hand bend wiring to save time and material.
What does the H in the QS2110H catalog number indicate?
The H indicates a high interrupting rating. The QS2110H is rated at 22kAIC at 240V, whereas the standard QS2110 is rated at 10kAIC.
Are there versions of this 110A breaker with higher interrupting ratings?
Yes, Siemens offers the QSH2110 rated at 42kAIC, the QS2110HH rated at 65kAIC, and the HQS2110H rated at 100kAIC.
What is the standard 10kAIC equivalent to the QS2110H?
If your application only requires a 10kAIC interrupting rating, you can use the standard Siemens QS2110.
Are the lugs on the QS2110H rated for aluminum wire?
Yes, the included lugs are rated for both copper and aluminum conductors ranging from 3 AWG to 300 kcmil.
Does the QS2110H provide ground fault or arc fault protection?
No, this is a standard thermal-magnetic breaker that provides overload and short-circuit protection. It does not include GFCI or AFCI safety features.
Is the trip point on the QS2110H adjustable?
No, this breaker features a fixed thermal-magnetic trip unit with long-time and instantaneous trip functions.
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