Engineered for maximum fault protection, the Siemens Q3100HH is a 100A, three-pole miniature circuit breaker boasting an extra-high 65kAIC interrupt rating at 240VAC. It provides robust thermal-magnetic defense for demanding commercial and industrial applications. This HQP series plug-on breaker fits seamlessly into Siemens load centers and panelboards. It also serves as an exact substitute for the MP3100HH.
HACR Rated, Extra High Interrupting Capacity, Common Trip
Product FAQs
6 answers
What panels are compatible with the Siemens Q3100HH?
The Q3100HH is designed for use in Siemens load centers and panelboards that accept Type HQP plug-in circuit breakers.
Can the Siemens Q3100HH replace a Murray MP3100HH?
Yes, the Siemens Q3100HH serves as an exact, manufacturer-approved substitute for the obsolete Murray MP3100HH circuit breaker.
What does the 65kAIC rating indicate for this breaker?
The 65kAIC rating means the breaker can safely interrupt up to 65,000 amps of short-circuit fault current at 240VAC. This extra-high interrupting capacity provides robust protection for demanding commercial and industrial applications where high fault currents are possible.
Is the Q3100HH a plug-on or bolt-on circuit breaker?
The Q3100HH is a plug-in circuit breaker (Type HQP). It snaps directly into the busbar of compatible Siemens panels.
Does the Q3100HH provide ground fault or arc fault protection?
No, the Q3100HH is a standard thermal-magnetic breaker that provides overload and short-circuit protection. It does not include GFCI or AFCI safety features.
Can I use the Q3100HH in a single-phase panel?
No, the Q3100HH is a 3-pole breaker designed exclusively for 3-phase, 240VAC electrical systems. It will not fit or function properly in a single-phase load center.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 47 reviews.
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Reviews Summary
Generated by AI from 91 most recent customer reviews
Last updated 8/1/25
Customers say these circuit breakers arrive quickly and match their specifications perfectly. Many reviews mention success finding hard-to-locate specialty breakers through this supplier. Common feedback includes praise for the accurate product descriptions, reliable shipping, and competitive pricing. While some note occasional stock limitations, users consistently report the breakers fit and function as intended.