Built for environments requiring extreme fault current defense, this 30A two-pole device boasts an impressive 65kAIC rating. The thermal-magnetic trip mechanism provides reliable long-time and instantaneous response for critical circuits. The unit mounts into standard Siemens load centers without requiring specialized hardware. It also serves as an exact cross-reference for the discontinued MP230KM model. HACR certification allows safe operation with heating and cooling equipment.
HACR Rated, Extra High Interrupting Capacity, Insta-Wire, Common Trip
Product FAQs
6 answers
Which load centers are compatible with the Siemens Q230HH?
This breaker is designed for Siemens load centers that accept QP-frame plug-in breakers, including PL and ES series panels. It is also backward compatible with many legacy ITE enclosures. Always check the panel label to confirm HQP or 65kAIC breaker approval.
What does the HH suffix in the Q230HH catalog number signify?
The HH suffix indicates an interrupting rating of 65kAIC at 120/240VAC. This is the highest fault current rating in the QP family, exceeding the standard 10kAIC (Q230) and 22kAIC (Q230H) versions.
What wire sizes can be used with the Q230HH load lugs?
The terminal lugs accept 10-6 AWG copper conductors or 8-6 AWG aluminum conductors. Installers must torque the connections to the specifications printed directly on the breaker label.
Can the Q230HH replace a standard Q230 breaker?
Yes. The Q230HH has the same physical dimensions and plug-in mounting as the standard 10kAIC Q230 and 22kAIC Q230H. It can be installed in the same spaces when a higher 65kAIC rating is required by the electrical system design.
Does the Q230HH include arc-fault or ground-fault protection?
No. The Q230HH is a standard thermal-magnetic breaker that provides long-time and instantaneous trip functions for overload and short-circuit protection. It does not contain AFCI or GFCI circuitry.
How much panel space is required to install the Q230HH?
This 2-pole breaker requires two adjacent 1-inch spaces on the load center bus bar.
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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.