Engineered for commercial applications, the Eaton BAB2080S provides reliable 80A overcurrent protection. This Quicklag series miniature breaker features a thermal-magnetic trip mechanism to safeguard electrical distribution systems. The two-pole unit bolts into Eaton Pow-R-Line, Cutler-Hammer, and Westinghouse panelboards. It serves as a functional replacement for discontinued QNBL2080 breakers. Rated for 10 kAIC at 120/240V, this model includes a factory-installed 120-240VAC shunt trip.
What panelboards are compatible with the Eaton BAB2080S?
This bolt-on breaker is designed for installation in Eaton Pow-R-Line panelboards, as well as legacy Cutler-Hammer and Westinghouse panelboards.
What does the S suffix in the BAB2080S catalog number indicate?
The S suffix designates that this breaker includes a factory-installed 120/240VAC shunt trip mechanism. This allows the breaker to be tripped remotely for emergency shutdown or control applications.
Can the BAB2080S be used to replace older Westinghouse breakers?
Yes, this Eaton Quicklag breaker serves as a direct functional replacement for legacy Westinghouse and Cutler-Hammer BAB series breakers, including older QNBL shunt-trip units with matching specifications.
What wire sizes and materials are accepted by the terminals on this breaker?
The box lugs on the BAB2080S accommodate 4 AWG to 1/0 AWG conductors and are rated for use with both copper and aluminum wiring.
How does the bolt-on mounting style benefit the installation?
The bolt-on connection fastens directly to the panelboard bus, providing a highly secure, vibration-resistant mechanical and electrical connection that is ideal for commercial and industrial environments.
Is this 80-amp breaker suitable for HVAC applications?
Yes, Eaton Quicklag BAB circuit breakers in this amperage range carry a full HACR rating, making them certified for use with heating, air conditioning, and refrigeration equipment loads.
Can the BAB2080S be used in DC voltage systems?
Yes, while primarily rated for 120/240VAC at 10kAIC, this breaker is also rated for DC applications up to 80VDC with a 5kAIC interrupting capacity.
How does the thermal-magnetic trip unit protect the circuit?
The fixed thermal-magnetic mechanism provides dual protection. The thermal element (long-time) responds to sustained overloads, while the magnetic element (instantaneous) trips immediately during a short circuit.
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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
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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.