Designed for higher-amperage branch circuits, the Eaton QBHW2110 is a 2-pole, 110A miniature circuit breaker. It utilizes a fixed thermal-magnetic trip unit to deliver precise long-time and instantaneous protection for commercial and industrial electrical systems. This unit mounts into Eaton Pow-R-Line 1a and 2a panelboards using a secure bolt-on connection. With a short-circuit current rating of 22kA at 120/240VAC, it safely handles high fault currents and features a non-interchangeable trip.
What panelboards are compatible with the QBHW2110 circuit breaker?
The QBHW2110 is a bolt-on miniature circuit breaker designed for use in Eaton Pow-R-Line 1a and Pow-R-Line 2a panelboards. It is not compatible with standard residential plug-on load centers.
What is the difference between Eaton BAB and QBHW circuit breakers?
Both are Quicklag bolt-on breakers with identical physical dimensions, but they have different interrupting ratings. The BAB series is rated for 10kAIC, while the QBHW series features a higher interrupting capacity of 22kAIC.
What are the terminal torque specifications for the QBHW2110?
The required torque depends on the wire size used in the box lugs. Torque 8 AWG wire to 25 in-lbs, 6-4 AWG to 27 in-lbs, and 3-1/0 AWG to 45 in-lbs.
Is the Eaton QBHW2110 the same as a Cutler-Hammer QBHW2110?
Yes. Eaton acquired Cutler-Hammer, and the QBHW2110 is the exact same Quicklag bolt-on breaker. Depending on the manufacturing date, it may be branded as Eaton, Cutler-Hammer, or Westinghouse.
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Review summary
Customers rate this product 4.8 out of 5 based on 11 reviews.