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Eaton Pow-R-Way III circuit breaker plug-in unit
Manufacturer Resources
Product Specs
- Amperage Rating:
- 50A
- Circuit Breaker Frame:
- F Frame (15-225 A)
- Grounding Options:
- 50% Integral/Housing
- Interrupt Rating:
- 18 kAIC at 240 Vac, 14 kAIC at 480 Vac, 14 kAIC at 600 Vac
- Neutral Options:
- 100%
- Product Subgroup:
- circuit breaker
- Department:
- Electrical
- Product Group:
- Electrical Components
- Product Type:
- Breaker
- Product Length:
- 12.36 IN
- Product Details:
- Breaker
- Product Height:
- 21.2 IN
- Product Weight:
- 25 LB
- Product Width:
- 5.43 IN
B-LINE P3BFDB3050N – Frequently Asked Questions
1) What amperage and breaker frame does the B-Line P3BFDB3050N busway plug-in unit use?
The P3BFDB3050N is a 50 amp plug-in unit built on an F frame breaker, a frame that covers 15 to 225 A. So the same plug-in housing family carries other trip ratings, but this particular unit is factory built at 50 A. If your feeder schedule calls for a different amp draw on that tap, you need a different P3BF part number rather than swapping the breaker in the field.
2) Will a 50A Pow-R-Way III plug-in unit hold up on a 480V system, and what is its interrupting rating?
Interrupting ratings run 18 kAIC at 240 Vac and 14 kAIC at both 480 Vac and 600 Vac. That means it is usable up to 600 Vac, but your available fault current at the busway tap point has to be at or below 14 kA on a 480 or 600 volt system. If the coordination study shows more than that at the plug-in location, this unit is not code compliant for the spot and you need a higher AIC device.
3) Does the P3BFDB3050N plug-in unit come with a full neutral?
Yes, it is configured with a 100 percent neutral, so it can carry full rated neutral current, which matters where you are feeding panels with heavy single phase or nonlinear load. Ground is handled as a 50 percent integral housing ground rather than a separate full size ground bar.
4) Will a P3BFDB3050N fit any manufacturer's busway, or only Eaton?
This is an Eaton Pow-R-Way III plug-in unit, and plug-in units are specific to the busway system they were designed for. It mounts on Pow-R-Way III runs. It will not latch and make contact correctly on another maker's bus, and it should not be forced onto a different Eaton busway family either.
5) How much does the Pow-R-Way III plug-in unit weigh and how big is it for overhead busway installs?
It weighs 25 lb and measures 21.2 in height, 12.36 in length, and 5.43 in width. At that weight, one electrician can hang it on the busway run, but on elevated runs you still want a lift or a second set of hands, and you need roughly two feet of clear vertical space at the plug-in opening plus room to swing the operating handle.
6) What exactly am I getting with a busway plug-in unit versus just a circuit breaker?
A plug-in unit like the P3BFDB3050N is a complete breaker-in-an-enclosure that latches onto a Pow-R-Way III busway run and taps power directly from the bus, no conduit or feeder back to a panelboard. The circuit breaker is inside the unit, here an F frame device rated 50 A. Buying a bare breaker gets you the device only, with no busway interface, so it cannot be used to tap a bus run.
7) What is the manufacturer part number to order this 50A Pow-R-Way III plug-in unit?
Order it as B-Line P3BFDB3050N. That single part number carries the 50 A rating, F frame breaker, 100 percent neutral, and 50 percent integral housing ground, so there are no separate options to select on it.
How fast can I get the B-LINE P3BFDB3050N delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 B-LINE P3BFDB3050N come with a warranty?
Absolutely. The B-LINE P3BFDB3050N 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 B-LINE P3BFDB3050N?
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