Eaton BAB Series Quicklag Ther...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$285.97
Eaton BAB Series Quicklag Thermal-Magnetic Circuit Breaker, 3-Pole, 240V

Eaton BAB Series Quicklag Thermal-Magnetic Circuit Breaker, 3-Pole, 240V

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Model: BAB3050H

In Stock (leaves warehouse same day if ordered before 3pm ET)

$285.97
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Eaton BAB Series Quicklag Thermal-Magnetic Circuit Breaker, 3-Pole, 240V

The Eaton BAB Series is a line of Quicklag industrial thermal-magnetic circuit breakers engineered for reliable overcurrent protection in commercial and industrial distribution panels. This three-pole, 240V family is available in amperage ratings from 40A to 50A, with a 10 kiloamp interrupt rating across the line, making it a dependable choice for electrical contractors and facility maintenance teams who need a proven thermal-magnetic trip mechanism for consistent circuit protection. Each breaker in the BAB Quicklag family is designed for use in 240V three-phase, four-wire distribution panels and fits into compatible Eaton panelboards, giving specifiers flexibility to select the amperage that matches the branch or feeder circuit load while standardizing on a single trusted breaker platform.

Key Features

  • Amperage Rating: Available from 40A to 50A to match branch and feeder circuit protection needs.
  • Interrupt Rating: 10 kiloamps, providing dependable fault-current interruption for industrial distribution systems.
  • Pole Configuration: 3-Pole design for balanced protection across three-phase circuits.
  • Voltage Rating: 240V rating, suited for distribution panels supplying three-phase, four-wire 240V systems.
  • Thermal-Magnetic Trip Mechanism: Quicklag thermal-magnetic construction combines thermal overload protection with magnetic instantaneous trip response for both sustained overloads and short-circuit conditions.
  • Panelboard Compatibility: Designed for use in qualifying Eaton BAB-series distribution panelboards.
  • Series: Part of the Eaton BAB Quicklag industrial breaker series, built for dependable performance in demanding electrical environments.

Technical Specifications

  • Series: BAB Quicklag
  • Amperage Rating: 40A - 50A
  • Configuration: 3-Pole
  • Voltage Rating: 240V
  • Interrupt Rating: 10 kiloamps
  • Trip Type: Non-Interchangeable

Typical Applications

  • Commercial and Industrial Distribution Panels
  • 240V Three-Phase, Four-Wire Electrical Systems
  • Branch and Feeder Circuit Overcurrent Protection
  • Panelboard Breaker Replacement and Upgrades
  • Facility Maintenance and Electrical Retrofits

Why Eaton?

Eaton's Quicklag BAB series thermal-magnetic breakers are built to deliver consistent, code-compliant overcurrent protection for demanding three-phase distribution applications. With a 10 kiloamp interrupt rating shared across the 40A to 50A lineup and a design built for compatible panelboards, the BAB series gives electrical professionals a trusted, dependable option for maintaining safe and reliable 240V industrial power distribution across a range of circuit loads.

Manufacturer Resources

Product Specs

Product Type:
Circuit Breaker
Voltage Rating:
240V
Configuration:
3-Pole
Series:
BAB Quicklag
Department:
Electrical
Product Group:
Circuit Protection
Product Subgroup:
Circuit Breakers
list_batch:
EAT-20260924
Product Details:
Quicklag Industrial Thermal-magnetic Circuit Breaker
Trip Type:
Non-Interchangeable
Interrupt Rating:
10 kiloamps
Certifications:
UL Listed
Product Length:
3.8 in
Number Of Poles:
Three-pole

Eaton BAB3050H – Frequently Asked Questions

1) What amperages does the Eaton BAB 3-pole 240V Quicklag breaker come in?
Two ratings in the 3-pole 240V Quicklag group: 40A (BAB3040H) and 50A (BAB3050H). Both carry the same 10 kiloamp interrupting rating, so stepping from 40 to 50 amps does not change the fault-current capability of the panel.
2) Will a BAB3040H work in a 480V panel?
No. The BAB Quicklag 3-pole breakers here are rated 240V and belong in 240V three-phase, four-wire distribution panels. A 480V system needs a breaker rated for that voltage class, not a 240V BAB.
3) Is a 10 kAIC breaker enough for my available fault current?
The BAB 3-pole 240V breakers interrupt 10 kiloamps. If the available fault current at that panel location exceeds 10 kA, this breaker is not the right choice unless the panel is series-rated with its upstream device. Fault current at the breaker terminals has to be at or below 10 kA.
4) Will this BAB breaker plug into my existing Eaton panelboard?
These are built for qualifying Eaton BAB-series distribution panelboards. If the panel's label lists BAB as an acceptable breaker type, a BAB3040H or BAB3050H drops into three adjacent spaces. Panels that call for a different Eaton type (or another manufacturer's bus) will not accept it.
5) I'm replacing a failed 3-pole breaker in a 240V three-phase panel. What do I need to match?
Match four things: pole count (3-pole), voltage class (240V), amperage (40A or 50A in this group), and the breaker type the panel label accepts (BAB). Because the trip is non-interchangeable, the replacement has to be ordered at the amperage the circuit was designed for rather than adjusted after install.
6) Can I change the trip rating on these Eaton BAB breakers?
No. The trip type is non-interchangeable, meaning the thermal-magnetic trip unit is fixed at the breaker's nameplate rating. To change protection you swap the whole breaker, so order the 40A or 50A unit that matches the circuit.
7) What does thermal-magnetic mean on a Quicklag breaker, and when would I want something else?
Thermal-magnetic means two trip elements in one breaker: a thermal element that responds to sustained overload over time, and a magnetic element that trips instantly on a short circuit. That covers ordinary branch and feeder loads in commercial and industrial panels. Where you need adjustable trip settings or electronic coordination with downstream devices, a fixed thermal-magnetic BAB is not the tool; a breaker with an adjustable or electronic trip unit is.
8) Can I use a 3-pole BAB breaker to feed a single-phase 240V load?
It is a 3-pole device intended for balanced protection across three-phase circuits in 240V three-phase, four-wire systems. For a two-wire or three-wire single-phase 240V load you want a 1- or 2-pole breaker instead; using a 3-pole leaves an unused pole and wastes a panel space.
9) For standardizing breakers across a facility, is the BAB Quicklag line consistent between amperages?
Yes for this 3-pole 240V group. Both the 40A and 50A units share the BAB Quicklag thermal-magnetic platform, the 240V rating, and the 10 kA interrupting rating, so a maintenance shelf can stock the two ratings knowing the electrical characteristics and panel compatibility are the same.
How fast can I get the Eaton BAB3050H delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Eaton BAB3050H come with a warranty?
Absolutely. The Eaton BAB3050H is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Eaton BAB3050H?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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