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Solid THHN/THWN-2 WireFrom $0.20/ft -
Solid THHN/THWN-2 WireFrom $0.20/ft - Solid THHN/THWN-2 WireFrom $0.20/ft
- Solid THHN/THWN-2 WireFrom $0.20/ft
Generator cables are multi-conductor, all-in-one solutions designed to connect a generator to an electrical system, often an automatic transfer switch. They are engineered to carry both high-voltage power and low-voltage control signals within a single, durable outer jacket, simplifying installations and reducing labor.
Multi-conductor generator cables offer significant advantages by combining multiple insulated conductors into one jacket. This design saves labor during installation by replacing two separate cables, reduces clutter, and simplifies wiring management. They also enhance safety by reducing the risk of loose or tangled wires.
To determine the correct cable size, you need to calculate the generator's amperage. This is done by dividing the generator's wattage by its voltage (Watts ÷ Volts = Amps). Then, apply the National Electrical Code (NEC) 80% rule by multiplying the amperage by 1.25 to find the required cable ampacity. The cable's amperage rating must match or exceed the generator's largest outlet capacity.
Look for cables that are UL Listed as Type TC/TC-ER-JP, which signifies compliance with UL Standard 1277 for Power and Control Tray Cables. These cables are typically rated for 600V and meet NEC requirements for safe and compliant installations.
Yes, while our generator cables feature color coding to match Generac® generator connections, they are designed for universal application. They can be used with other generator brands that require the same gauge wire and electrical specifications.
Multi-conductor generator cables are widely used for various applications, including:
In generator cables, color coding helps identify the function of each conductor. While specific configurations can vary, common US AC color codes generally include:
The "TC-ER-JP" rating indicates that the cable is a Tray Cable (TC), suitable for use in cable trays. Exposed Run (ER) means it has a ruggedized jacket allowing it to transition from a tray or joist into equipment without additional mechanical protection. Joist Pull (JP) rated means it is specially tested and listed for pulling through wood-frame joists and studs per NEC 336.10(9), eliminating the need for conduit in these applications.
Yes, cable length is an important factor. Longer cable runs can experience a phenomenon called "voltage drop," where the voltage decreases over distance due to electrical resistance. Excessive voltage drop can reduce efficiency and potentially harm your generator or connected appliances, so it's crucial to select an appropriate gauge for the intended length.
Generator cables combine power and control wires into a single assembly to streamline installation and reduce complexity. This all-in-one design eliminates the need to run separate cables for high-voltage power and low-voltage control signals, saving labor, time, and material costs, such as conduit.
Yes, Wire America supplies all of our generator cable cut by the foot. You can enter the length you need on the product page and we will get it cut and out the door for you right away! Standard ground orders typically arrive within 2-4 business days and expedited shipping options (next day and 2-day) are also available on the checkout page.
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Need an emergency power cable distributor that sells by the foot? Wire America is a premier supplier of bulk, industrial-grade Type TC-ER-JP All-In-One Generator Cable, providing dual-rated 600V lines cut to your precise footage specifications with fast shipping.
TC-ER-JP is a specialized multi-conductor power and control cable engineered specifically for the interconnection of standby generators and automatic transfer switches (ATS). Traditionally, generator installations required separate runs for high-voltage power and low-voltage control signals; however, this all-in-one solution combines both into a single, rugged assembly. Rated for 600V and featuring the critical "JP" (Joist Pull) designation, this cable is UL-listed for installation through residential or commercial joists without the need for conduit, significantly reducing labor and material costs. Whether you are installing a 7kW or a 26kW standby system, TC-ER-JP provides a code-compliant, streamlined path for both the heavy-gauge power conductors and the sensitive signal wires required for automatic start-up and monitoring.
"Stop pulling separate wires—grab a UL-listed cable that combines power and control in one run, saving you hours of labor and the cost of conduit."
Pro Tip: Look for the "JP" marking on our jacket. This is your "pass inspection" guarantee—it proves to your local electrical inspector that the cable is safe to pull through your home’s wooden joists without a pipe.
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