Siemens QS2100HH Miniature Circuit Breaker
- 100A
- 2 Pole
- Plug-On
Siemens
QS2100HH
Miniature Circuit Breaker
Brand
Siemens
SKU
QS2100HH
Quantity
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Siemens QS2100HH - 100A 2 Pole Miniature Circuit Breaker
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Description
Designed for environments demanding high interrupting capacity, the Siemens QS2100HH delivers 100A main service protection with a 65 kAIC rating at 120/240V. It installs into Siemens Power Mod meter stacks, Uni-PAK metering systems, and legacy Murray load centers. Serving as an exact replacement for the discontinued MDH2100, this two-pole plug-on breaker ensures reliable performance.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QS2100HH |
| Series | QS |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed, Main Breaker, Common Trip |
Product FAQs
6 answersWhich metering equipment is compatible with the QS2100HH breaker?
This breaker is designed for use in Siemens Power Mod Meter Stacks, Uni-PAK Metering, and legacy Murray load centers. It fits directly into a 225A QS slot without requiring conversion kits or filler plates.
What is the acceptable wire size and torque specification for the QS2100HH?
The QS2100HH accepts 3 AWG to 300 kcmil copper or aluminum conductors. The terminal screws must be tightened to 250 lb-in of torque using a calibrated torque wrench.
What is the difference between the QS2100, QS2100H, and QS2100HH?
The difference is the short-circuit interrupting rating. The standard QS2100 is rated at 10kAIC, the QS2100H is rated at 22kAIC, and the QS2100HH provides a 65kAIC rating.
How does the side-wired design of the QS2100HH benefit installation?
The side-wired configuration optimizes wiring space within the meter stack. This eliminates the need for difficult S-bends and simplifies the connection process for large conductors.
Can the Siemens QS2100HH replace legacy Murray breakers?
Yes, Siemens QS series breakers are UL listed to replace legacy Murray breakers of the same frame size and specifications in compatible metering equipment.
What is the temperature rating for the conductors used with the QS2100HH?
The breaker terminals are designed and rated for use with 75 degrees Celsius copper or aluminum wire.
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