Wire Ferrules Explained: Why are Ferrules Used and How are Ferrules Crimped

hi my name is Gary I represent Electrical Terminal Service and today I would like to explain how Farrell's work what they are how they benefit you and show you a few tools and options for crimping them a feral consist of a copper tube that's tin plated with a nylon insulation on it these are very different than standard terminals and take a specialized tool with a ferrule on crimping the tube whereas with a standard terminal I would crimp the insulation Ferrell's are available from 250 MCM which is considerably larger than this to very small Ferrell's that are quite a bit smaller than these down to 28 gauge so 250 MCM to 28 gauge Ferrell's also are available in twins the twin has a elongated body on it that can take two different wires insert it in the wire strands go down the tube and they're crimped just like any other ferrule look at a 12-gauge wire with the terminal already crimped onto the end of it it has flats on the side I can insert it into my set screw and I've got a hundred percent contact between my wire strands and my contact point on the other hand if we use the old way and just had some stranded wire that was going to be inserted underneath that set screw what you'll find is you're only going to get about 50% contact because the wire strands will begin to fan out once there's pressure placed on the stranding which isn't a very effective way to assure good contact barrels are something that are typically used in the asian market or in the european market in the united states that are not mandatory like they are overseas the first time you see barrels could be when you're working on a foreign machine let's demonstrate some tools now I have three of the most popular tools that most of our electricians favor the first one is a fare tool Rodo the fare tool Rodo is called a roto because you can rotate the head 90 degrees I can crimp from straight on I can crimp from the side it's a fully ratcheted mechanism it has economic handles it also has just one die so that you can crimp 28 gauge all the way up to 10 gauge in this particular case let's take a 14 gauge wire slip on a 14 gauge ferrule so the insulation is in the nylon and the strands are running down the tube I'll switch my roto so it goes straight on so you can see I slip it into the tool and I crimp it and puts it indent on one side so it will slip under the set screw wonderfully and makes 100% contact I want to demonstrate is a gun type tool it is a very smooth gun action on it it has a long gated metallic body that is good for reaching into a confined space where I can crimp on a ferrule in an area I can't come from the side on a typical crimping tool it is a square crimp on the end and again I can take a 14-gauge ferrule slip it on to some 14 gauge wire and then put the entire ferrule in the end of the tool and crimp it it makes a square crimp that fits very neatly underneath that terminal block and the set screw we carry our fair tool 2810 in a kit form five different sizes including the tool our last tool is really a tool that we see most often in companies that are doing an awful lot of crimping of Farrell's they're building panels they're doing big machines with an awful lot of wires this tool is interesting because it is made out of fiberglass it's wonderful for the field it's lightweight it strips cuts and crimps it takes a belt of 50 terminals that are fed through a cam through the handle of the tool these belts come in any size from 22 gauge to 14 gauge this is an 18 gauge the one I have in it is a 14 gauge I close the handle and I can begin to use the tool I take my 14 gauge wire put it into the end strip it and then turn around and slip the wire into the ferrule engage the cam by pushing slightly and crimp and I've got a nice crimp I can do this to an awful lot of wires very quickly I can put Ferrell's on I can apply Ferrell's three times as fast as I can with a standard hand tool so if I'm in a semi production mode I can really increase my output without increasing my manpower it's a affordable tool compared to a fully automated crimping machine for Ferrell's

Channel: Electrical Terminal Service

Views: 266,276

Keywords: ferrules, crimping, terminals, what are ferrules, how are ferrules used, how are ferrules crimped, wire ferrules, electrical ferrules, insulated ferrules, ferrule crimping tools, Ferrule, ferrule crimp tool, Crimp

Id: os66cID30Ek

Length: 6min 20sec (380 seconds)

Published: Wed Mar 18 2015