WesBell Electronics
Wire and Cable Blog

Posts tagged: type e wire

Pros and Cons of Using the PTFE 18 AWG Wire

For those who love fixing things or simply want to have things done on their own, knowledge about different types of hookup wires is very valuable. Not being able to use the most appropriate type of wire for each job will not only lead to waste of time and money. It can also be very dangerous and can pose a threat to one’s life and the safety of his family or workplace. For instance, it is important to know that for projects requiring high temperature wire, the best option is the PTFE 18 AWG wire. Let us take a closer look at its characteristics, as well as the pros and cons of using this type of wire.

There are different types of PTFE wire. The most typical types are Type E, Type EE, Type ET and the STJ or shielded tape jacket version. The difference between these types is dictated by the following: voltage, ampacity and appearance. In terms of voltage, STJ and Type E can accommodate 600 volts. Type EE is best for 1,000 volts, while Type ET is suited for 250 volts. The next point for comparison is ampacity, or the amount of current that the wires can conduct. Usually, this is directly proportional to the voltage, so higher currents would requires a wire that can also accommodate high voltage. The last identifier among these types is appearance. For instance, the STJ cables have two sub-types – shielded and unshielded. Choosing between these two types would be based on additional factors such as the probability of the equipment incurring a temperature higher than 200 degrees Celsius, thus needing more insulation for safety reasons.

The PTFE 18 AWG wire is a good buy because it is available in the different types mentioned above. In addition, it has a stranding of 19/30 or 19 strands of 30 AWG wires. The diameter is also good at 0.07 inches. It also has several approvals such as the UL 1213, VW-1 Flame Test, and Mil Spec M16878/4. It is also RoHS Compliant so there is no need to worry about any hazardous risks coming from using the wire.

The only downside of using this wire is the price. PTFE wires already cost more than other types of electrical or hook up wire, because of the need for a better insulation for the high temperature. This type of wire, however, is one of the priciest types of PTFE wire that is currently in the market. Thus, some people would opt for other PTFE cables that are less expensive, unless of course the particular job or equipment they are working on specifically requires the stranding and wire gauge that this wire offers.

Overall, the PTFE 18 AWG Wire is a nice catch and a wonderful option among the different types of high temperature wires. Its quality and durability can be helpful in completing work around the house or even in commercial locations. The only setback in using this type is its price. However, if you cannot compromise quality and safety over expenses, then this is the best option.

WesBell Electronics Inc
(800) 334-8400

Difference Between PVC and PTFE Cables

When our customers and website visitors ask for pricing on a PVC cable to compare it to a PTFE cable they’re completely shocked when they hear the difference in price, so we’re going to let you know the differences in order to justify the pricing. Once you understand the engineering, materials and commodities it will be easier to understand the price difference between the two.

PVC cables are manufactured at a much lower cost because they don’t have to meet the high temperature rating that PTFE cables do. PVC stands for Polyvinyl Chloride which is a compound engineered to be used in electronics and other indoor applications.

PVC electronic cables meet a 105°C temperature rating in 300 or 600 volts. They’re manufactured with flexible copper strands and PVC insulation on the inner conductors. They sometimes come with an aluminum overall foil shield and a tinned copper drain wire.

Now that you know the construction of a PVC cable you’ll probably understand why a PTFE cable is much more expensive. PTFE compound is used to manufacture a 200°C temperature material to cover the copper conductors. The engineering involved in creating a 200°C cable is much more involved than the process of creating a 105°C cable.

The inner conductors of PTFE cables also have a PTFE insulation called Type E or M16878/4 that also meet the high temperature of 200°C. They’re manufactured with silver plated copper strands which means the cost of high copper and high silver must be included in the pricing on PTFE cables.

The final reason for higher prices on PTFE cables is the fact that the earthquake in Japan affected an entire manufacturer of PTFE compound that was sending the compound to PTFE wire manufacturers. That created a huge shortage of PTFE wire in the market which drove up the pricing as well.

I wouldn’t want to say that a PVC cable is easy to manufacture, but when comparing it to a PTFE cable it seems like a walk in the park. Both cables have a UL and CSA approval along with RoHS compliance, but PTFE cables can be used outdoors, at higher temperatures and they resist water, gases, oils, solvents and much more. Just make sure you’re sitting down when you hear the pricing!

Please call if you have any questions or comments about our wire, cable tubing, blog or website! We enjoy all feeback!

WesBell Electronics Inc
(800) 334-8400

PTFE Lead Wire and Shielded Cables

WesBell just added to our PTFE section from the standard high temperature lead wire to a few more types of PTFE hook up wire and two types of PTFE cables. PTFE is a brand name that designates a PTFE compound that allows wire and cable to reach temperatures of 200°C and higher.

For a few years now we’ve been selling Type E PTFE wire which is a 600 volt 200°C lead wire with a Mil Spec M16878/4 rating. Well, there’s also a 250 volt and 1000 volt PTFE lead wire that we added to our website. They aren’t available to buy online just yet, but it allows our customers and website visitors access to all of the specifications and approvals that they have to offer. We can supply these new PTFE lead wires within a few days.

The PTFE cables were also a great addition to our website since many of our customers order multiple Type E lead wires for the same wire harness or application. Instead of using 3 individual PTFE wires they can use a cable with 3 wires in it for a much better look to finish the application.

STJ stands for Shielded Tape Jacket which is the most common type of PTFE cable. They come in an unshielded version if needed but most times a shield is neccessary for the high temperature applications. The PTFE tape jacket is rated for 200°C and the wires are Type E 600 volt which is also rated for 200°C. STJ cables are manufactured with a braid shield which is better than the common aluminum foil shield in most PVC cables.

Type ET lead wire is manufactured with a slightly thinner insulation since it only needs to reach 250 volts rather than 600 volts. It’s a little bit cheaper but the level of competition on the Type E drives the price down a bit as well. Type EE is 1000 volts with a slightly thicker insulation to handle the higher voltage rating. All three types of PTFE wire are rated for 200°C with silver plated copper strands.

Please contact us if you have any questions about PTFE wire and cable or if you have any questions or comments about our website. We enjoy getting feedback!

WesBell Electronics Inc
(800) 334-8400