Engineered for commercial and industrial applications, the Eaton BAB1030S is a single-pole, 30-amp miniature circuit breaker from the Quicklag family. It is designed to provide robust thermal-magnetic overcurrent protection for branch circuits. This bolt-on breaker mounts seamlessly into Eaton Pow-R-Line, Cutler-Hammer, and legacy Westinghouse panelboards. It also serves as a replacement for older QNBL1030 units requiring a shunt trip.
What does the "S" suffix indicate on the BAB1030S catalog number?
The "S" designates that this breaker includes a factory-installed 120VAC shunt trip. This allows the breaker to be tripped remotely by applying voltage to the shunt trip coil, a feature not present on the standard BAB1030.
Which panelboards are compatible with the BAB1030S circuit breaker?
This Quicklag bolt-on breaker is designed for use in Eaton Pow-R-Line, Cutler-Hammer, and legacy Westinghouse panelboards that accept BAB frame types.
Is the BAB1030S a suitable replacement for legacy Westinghouse breakers?
Yes, Eaton manufactures the BAB1030S to be fully backward compatible with legacy Westinghouse panelboards. It can also directly replace older QNBL1030 units that require a shunt trip.
Can the BAB1030S be used in DC control circuits?
Yes, while primarily used in 120/240VAC systems, this breaker is also rated for DC applications. It provides a 5kAIC interrupting rating at 24VDC or 48VDC, and a 3.8kAIC rating at 62.5VDC.
Does the BAB1030S snap into place or bolt onto the busbar?
This is a bolt-on breaker. It must be bolted directly to the chassis bus in compatible panelboards, which provides a secure, vibration-resistant connection suitable for commercial and industrial environments.
Is the BAB1030S rated for HVAC equipment?
Yes, Eaton BAB circuit breakers are HACR rated, meaning this 30-amp breaker is approved for use with heating, air conditioning, and refrigeration equipment branch circuits.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 164 reviews.
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Rated 4.9 out of 5 stars
Based on 164 reviews
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Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 6/19/26
Customers say these breakers function as intended and arrive quickly. Fast shipping is consistently mentioned across reviews, with many noting timely delivery and secure packaging. Customers appreciate competitive pricing and the availability of items in stock. Products arrive in good condition, well-packaged, and work properly upon installation. Common feedback addresses responsive customer service and reliable order fulfillment. Most customers report smooth purchasing experiences and indicate they will return for future orders.
We placed our first order with superbreakers.com recently for a breaker we weren't able to acquire locally. I ordered the breaker way ahead of time because I've had issues with shipping for products purchased online in the past. The estimate for the item when I initially ordered was 3 days. Without adding an expedited shipping options, the breaker arrived the next day. We installed it this week, and so far so good. In my opinion, they sell quality parts and have excellent turn around time. Very impressed.