THHN Wire
THHN Wire, or Thermoplastic High Heat-resistant Nylon-coated wire, is widely used as building wire in commercial, industrial, and residential electrical applications. RSP Supply offers both stranded and solid wire in stock, with 11 color options and gauge sizes from 6 through 14 to support a wide range of wiring requirements. THHN wire is known for its durable construction, dependable electrical performance, and suitability for branch wiring, branch circuits, general electrical wiring, and other building wire applications.
THHN wire is typically constructed with a copper or aluminum conductor insulated with polyvinyl chloride (PVC) and covered with a tough nylon jacket. This nylon coating provides an added layer of protection against abrasion, chemicals, and moisture, helping the wire perform reliably in demanding installation environments. Because of this construction, THHN wire is commonly selected for conduit runs and other wiring systems where durability and long-term performance are important. Multiple THHN conductors can also be bundled and sheathed together to create THHN cable assemblies for specific wiring applications.
THHN wire is available in both stranded and solid constructions, allowing users to choose the type that best fits the installation. Stranded THHN wire is often preferred where greater flexibility is needed during routing and pulling, while solid THHN wire is commonly used where a more rigid conductor is acceptable. With a broad range of gauge sizes and color options available, THHN wire supports organized, code-conscious installations across many types of electrical systems and building projects.
FAQs
Q: What does THHN stand for?
THHN stands for Thermoplastic High Heat-resistant Nylon-coated wire.
Q: What is THHN wire used for?
THHN wire is commonly used as building wire for branch circuits, general electrical wiring, hookup wire, and other commercial, industrial, and residential applications.
Q: What is the difference between stranded THHN and solid THHN?
Stranded THHN is made of multiple conductor strands for greater flexibility, while solid THHN uses a single conductor and is more rigid for installations where flexibility is less important.
Q: What conductor materials are used in THHN wire?
THHN wire is typically made with copper or aluminum conductors, depending on the specific application and product.
Q: What is the purpose of the nylon coating on THHN wire?
The nylon coating adds protection against abrasion, chemicals, and moisture, helping improve durability in demanding wiring environments.
Why Buy THHN Wire from RSP Supply
RSP Supply offers THHN wire in both stranded and solid constructions for customers who need dependable building wire for electrical installation and maintenance applications. With multiple color options and gauges 6 through 18 available, customers can source wire suited for branch circuits, conduit runs, and general-purpose building wiring across a variety of project requirements.