Built for multi-family residential and commercial applications, the Siemens QS2100 serves as a 100A main breaker for Power Mod meter stacks and Uni-PAK metering systems. It installs seamlessly into compatible enclosures and serves as a direct replacement for legacy Murray MD2100 breakers. Rated at 10 kAIC, this two-pole plug-on device features an exclusive side-wired design with right-hand bend wiring, eliminating difficult S-bends and saving valuable gutter space during installation.
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
Protection and operation
Trip Technology
Thermal Magnetic
Trip Function Code
LI
Trip Function
Long-Time, Instantaneous
Trip Adjustability
Fixed
Standards and features
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, Reverse Feed, Main Breaker, Common Trip
Product FAQs
5 answers
What metering equipment is compatible with the QS2100?
The QS2100 is designed for use as a main breaker in Siemens Power Mod meter stacks and Uni-PAK metering systems, as well as legacy Murray load centers.
Can the Siemens QS2100 replace legacy Murray main breakers?
Yes, the QS2100 serves as a direct replacement for legacy Murray MD2100 main breakers.
Is the Siemens QS2100 the same as the ITE QS2100?
Yes. Siemens acquired ITE, so the current Siemens QS2100 is the direct equivalent and replacement for the legacy ITE QS2100.
How does the side-wired design of the QS2100 benefit installation?
The breaker features an exclusive side-wired design with single right-hand bend wiring. This eliminates difficult S-bends, saving valuable gutter space and reducing wire bending time during installation.
Is the QS2100 suitable for HVAC and reverse feed applications?
Yes, the QS2100 is HACR rated for heating, air conditioning, and refrigeration equipment. It is also approved for reverse feed applications.
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