Rounded service entry cable (SE-R) is used for a range of panel feeder and branch circuit applications. This cable is the round version of the SE-U cable. The latter is flat, unarmored — hence the U designation — and has a few other key differences. SE-R works well in indoor and outdoor applications and can stand up to threats like direct sunlight and moisture.
Here at WesBell Electronics, we carry copper SE-R cable, as well as SE-U cable. High-quality materials and excellent customer service are hallmarks of working with WesBell. Let’s dig into SE-R cable and go over the options and applications in which you can use it.
What Is SE-R Cable?
SE-R cable starts off with copper wires surrounded by thermoplastic, high-heat, nylon (THHN) insulation and a sturdy polyvinyl chloride (PVC) jacket. It also has a ground wire. These materials give it sunlight and water resistance and flame retardance, making it good for both indoor and outdoor usage. When used outdoors, SE-R is not appropriate for direct burial and must be used in conduit.
Common uses for SE-R cable include use as an aboveground service entrance cable and for panel feeding to multi-residential buildings. It is rated for 600 volts and 90℃ in both wet and dry conditions.
SE-R is available in several different American Wire Gauge (AWG) sizes, from 6 to 4/0 to suit different applications. All options come in a gray jacket, and we sell them with bulk discounts if buying large quantities.
Our SE-R cable maintains many different approvals from outside organizations, including the U.S. Military, ASTM International and UL, LLC:
- Military specification A-A59544
- UL 83
- UL 854
- Registration, Evaluation, Authorization and Restriction of Chemicals (REACH)
- Restriction of Hazardous Substances (RoHS)
SE-R vs. SE-U
There are two notable differences to be aware of when it comes to SE-R and SE-U cables. The first is in their shape. SE-R is rounded, while SE-U is flat. The second is their ground wires or lack thereof — SE-R has a ground cable, while SE-U does not. Because of this, SE-U is not commonly used for sub-feed applications like SE-R, but it is often used in service entrances. Plus, SE-U cables are not stranded, making them a little more time-consuming to use.
If you need SE-U cable, please give us a call.
If you’re looking for just the THHN wire used inside the cable, please see our electrical wire. Other products we carry include welding cable for flexible outdoor applications and hook-up wire for indoor use on appliances. Give us a call if you have any specific requirements and we’ll work with you to figure out a solution.
Purchase SE-R Cables From WesBell
WesBell Electronics is proud to be your source for high-quality SE-R cables and unparalleled customer service. One of our specialties is helping customers select the best cable for their applications, finding the right balance of performance and cost while meeting appropriate codes and specifications. If you’re not sure which cable you need, give us a call today. We’re happy to help you find the right one.
In addition to product selection, we offer a range of wire processing services. We can cut, strip, twist and perform other processes to ensure that your wires are ready to work when they get to you.
Click the links above to explore our SE-R cable options, and contact us if you have any questions!