WesBell Electronics
Wire and Cable Blog



Fire Alarm Wire and Cable – FPLR, FPLP Shielded and Unshielded

Fire alarm cable has now been added to our website under multiconductor cables. We wanted to add the riser and plenum alarm wire because we feel it compliments our electronic wire line very well. Many people looking for PVC multiconductor cables will also need riser and plenum fire alarm cables as well.

Fire alarm wire comes in shielded and unshielded versions which both offer a riser and plenum option. It’s usually offered in a red jacket but, depending on the gauge size and conductor count, you can get a few different color options.

Riser alarm wire is also known as FPLR for Fire Alarm Riser. The unshielded version of a riser cable will be the cheapest option between the four because it doesn’t have a shield or the added protection of the plenum jacket. It’s commonly installed virtically in the walls of your home where very little air can get to it.

Plenum alarm wire is also known as FPLP for Fire Alarm Plenum. The shielded version will be the most expensive type because of the Plenum PVC insulation and the added cost of the shield. Plenum PVC insulation protects the conductors from burning and spreading a fire. It’s commonly installed horizontally along your home’s ceiling because air can get into those areas which would cause a riser cable to spread the fire.

Riser, plenum, shielded and unshielded are the four most basic types of fire alarm wire but we also offer a contractor grade alarm wire for those who need it. Each type comes in 22 awg, 18 awg, 16 awg and 14 awg with anywhere from 2 to 10 condutors. Alarm wire conductors have polypropylene insulation, solid copper conductors and the shielded versions come with an additional drain wire.

WesBell stocks fire alarm wire in very high quantities so that we can supply our customers with a quick turn around whether they have a small job or a large commercial job to get done. “Time is money” and we let our customers know when their material will show up to the job site so that they can plan accordingly and save as much money as possible.

We also offer free shipping on orders over $250 and ship from NH so that you won’t have to pay taxes on the material you buy from us. Most of our wire and cable offer a free cutting charge to any length you need to buy so that you can limit waste in every possible area. Please call us if you have any questions of comments.

WesBell Electronics Inc
(800) 334-8400