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Pow-R-Way III Busway, Circuit Breaker Plug-in Unit, 3-Pole, 15 AMP, FDB Frame Type, 50% Internal Ground
Manufacturer Resources
Product Specs
- Amperage Rating:
- 15A
- Certifications:
- IEEE Certified
- Circuit Breaker Frame:
- F
- Compliances:
- NEMA Compliant
- Grounding Options:
- 50% Internal
- Interrupt Rating:
- 18 kAIC at 240 Vac, 14 kAIC at 480 Vac, 14 kAIC at 600 Vac
- Product Height:
- 21.2 in
- Product Length Depth:
- 12.36 in
- Product Weight:
- 25 lb
- Product Width:
- 5.43 in
- Product Subgroup:
- circuit breaker
- Department:
- Electrical
- Product Group:
- Electrical Components
- Product Type:
- Breaker
- Product Details:
- Breaker
B-LINE P3BFDB3015G – Frequently Asked Questions
1) Will a Pow-R-Way III plug-in unit fit any busway, or only B-Line Pow-R-Way III run?
Plug-in units are built to the bus bar and plug-in opening geometry of the run they belong to, and model P3BFDB3015G is a Pow-R-Way III unit. Use it on a Pow-R-Way III busway run; it is not a universal plug-in for other manufacturers' busway.
2) What interrupting rating does the 15 amp FDB plug-in breaker have at 480 volts?
The FDB frame breaker in this plug-in unit is rated 18 kAIC at 240 Vac, 14 kAIC at 480 Vac and 14 kAIC at 600 Vac. Check the available fault current at the tap point on your busway run against those numbers before you specify it.
3) Is this a 3-phase plug-in unit, and does it include an equipment ground?
Three poles, so it taps all three phases of the busway, and the unit is supplied with a 50 percent internal ground. That means the ground path is carried internally at 50 percent capacity rather than relying on a separate external ground bar, which matters if your run was specified with internal ground.
4) How much does a 15 amp Pow-R-Way III plug-in breaker unit weigh, and can one electrician hang it?
It weighs 25 lb and measures 21.2 in high, 5.43 in wide and 12.36 in deep. That is a one-man lift at floor level, but overhead on a busway run at height most crews use a second set of hands or a lift to line the stabs up with the plug-in opening.
5) I need clearance dimensions for a plug-in breaker unit on an overhead busway run. What is the footprint?
Plan for 21.2 in of height, 5.43 in of width along the busway and 12.36 in of projection off the run. The projection figure is the one that usually decides whether a unit clears ductwork, pipe racks or a ceiling grid running parallel to the busway.
6) What does the FDB frame designation mean when I am ordering a busway plug-in breaker?
FDB is the breaker frame type inside the plug-in unit, an F frame breaker, and it is what sets the interrupting ratings (18 kAIC at 240 Vac, 14 kAIC at 480 and 600 Vac). The trip rating is separate: this one is a 15 A unit. When you standardize a facility, matching frame type across plug-in units keeps spare breakers interchangeable.
7) Is 15 amps the breaker trip rating or the busway rating on this plug-in unit?
15 A is the trip rating of the breaker in the plug-in unit, sized to the branch load you are feeding, not the ampacity of the busway run itself. The run is rated separately and is normally far higher, which is why the FDB breaker's 14 to 18 kAIC interrupting rating has to cover the fault current available at that point on the bus.
8) What exact part number do I order for a 3-pole 15 amp FDB plug-in unit with 50 percent internal ground?
Order B-Line part number P3BFDB3015G. That single number covers the Pow-R-Way III plug-in unit, 3-pole, 15 A, FDB frame, with 50 percent internal ground, so there are no separate ground or trim options to add to the line.
9) Does this Pow-R-Way III plug-in unit meet NEMA requirements for an institutional spec?
The unit is NEMA compliant and IEEE certified. Those are the two designations carried on the record for it; if your drawing calls out anything beyond that, verify against the manufacturer's submittal for the run.
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Can I return it if it doesn’t work for me?
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Does the B-LINE P3BFDB3015G come with a warranty?
Absolutely. The B-LINE P3BFDB3015G is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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