Power Cord Buying Guide

What is a Power Cord?

A power cord is a line cord or electrical cable that connects various devices to an electrical power supply to provide electrical current. Made of copper wire enclosed in an insulating material and covered with a protective non-conductive material, power cords have internationally country-specific plugs to provide electrical power in a variety of conditions and locations.

Types of Power Cord Available

IEC60320 Power Cord

The power cord works with a maximum voltage of 250V according to the IEC60320 standard, which is the international standard used in most countries.

NEMA Power Cord

The power cord is used for AC mains electricity in North America and other countries that use the standards set by the US National Electrical Manufacturers Association (NEMA).

International Power Cord

International power cord is designed for use in different countries around the world. A variety of connector types and international standards are available.

Extension Cord

Extension cords extend an existing power cord so it can reach an outlet. You can place a device further from a power outlet.

Locking Power Cord

Locking plugs provide a safe and secure connection for various applications where vibration, movement, or exposure to the elements can cause a non-locking plug to become loose or disconnected.

Splitter Power Cord

A power cord splitter allows two or more devices to share an AC wall outlet, saving space and reducing cable clutter.

Hospital-Grade Power Cord

The power cord is also known as "green dot" power cord. It is designed for use in medical facilities and meets stringent UL and CSA standards that help protect patients and staff from shock hazards.

High Voltage Power Cord

The power cord is ideal for powering your high voltage/high current equipment. This product operates safely and reliably even at a high power level and under challenging operating conditions.

How to Choose the Right Power Cord?

If you are buying a power cord for the first time, focus on these several features and you'll make a good decision. Whether you’re looking for a power cord for your homes, offices, or data centers, we’ve got you covered.

Cord Length

Determine the distance between the device and the outlet and choose a cord with the appropriate length to minimize the risk of tripping over a cord that's too long or not being able to reach the outlet with a cord that's too short.

Voltage & Current

Make sure the cord's voltage and current rating match the requirements of the device you're using it with. It is important not to exceed the voltage rating of the cord, as this can cause it to overheat, become damaged, or pose a fire risk.

Gauge

Gauge determines electrical conductivity and maximum current carrying capacity. A lower gauge number indicates a thicker wire, and a higher gauge number indicates a thinner wire. Higher current and longer lengths will require a cord with a lower gauge number.

Plug Type

Ensure the plug type of the cord matches the receptacle or outlet that you'll be using it with. Different countries have different plug types, so make sure to choose a cord with the right type of plug for your region.

Equipment Class

For certain equipment, such as medical devices, the power cord must meet specific safety standards and certifications. Make sure to choose a cord that meets the appropriate standards for your device.

Jacket Type

The most common power cord jacket ratings are: SJT (Service Junior Thermoplastic), SJTW (Outdoor-Rated Service Junior Thermoplastic), STOW (Service Oil Resistant Thermoplastic Overall Wiring).

Cord Length

Voltage & Current

Gauge

Plug Type

Equipment Class

For certain equipment, such as medical devices, the power cord must meet specific safety standards and certifications. Make sure to choose a cord that meets the appropriate standards for your device.

Jacket Type

The most common power cord jacket ratings are: SJT (Service Junior Thermoplastic), SJTW (Outdoor-Rated Service Junior Thermoplastic), STOW (Service Oil Resistant Thermoplastic Overall Wiring).

What Power Cord Do You Need?

The table below will give a clear illustration that may help you identify these power cord types.

Q: What is the maximum length of a power cord?

A: The maximum length of a power cord is determined by safety and performance standards, as well as the specifications of the device it is connected to. As a rule, the maximum length for an indoor power cord is around 100-150 feet, and 50-75 feet for outdoor use. However, this can vary based on the cord's gauge and amperage rating.

Q: What is the difference between grounded and ungrounded power cords?

A: A grounded power cord has three prongs: a neutral wire, a hot wire, and a ground wire. The ground wire provides a safe path for electricity to follow in case of an electrical fault, reducing the risk of electrical shock or fire. An ungrounded power cord has only two prongs - a neutral wire and a hot wire. It does not have a ground wire, so it does not provide the safety benefits of a grounded cord.

Q: Can I extend the length of a power cord?

A: Yes, you can extend the length of a power cord by using an extension cord. An extension cord is a cable with a plug on one end and a receptacle on the other end that allows you to connect a device to a power source from a greater distance. However, it's important to note that using an extension cord can also decrease the safety and performance of the device, as the cord's gauge (thickness) and length may not be able to handle the full power demands of the device. It's recommended to use the shortest cord possible and choose an extension cord with a gauge that is appropriate for the power needs of the device.

Q: How to hide power cords?

A: There are several ways to hide power cords:

Use cord covers : Cord covers can be placed along the floor or mounted on the wall to conceal cords.

Use cable ties or clips : Bundle cords together and secure them to the wall or baseboard using cable ties or clips.

Install cord channels : Cord channels can be mounted on the wall or baseboard to hide cords while still allowing easy access to them.

Use furniture : Place furniture like bookshelves, desks, or entertainment centers in front of cords to conceal them.

Colored cords : Choosing a cord that is similar in color to the wall or carpet will help it to blend into the background.

Regardless of the method used, always ensure that cords are not a tripping hazard or impede safe movement in space.