--- title: Selecting the Correct Cable description: Interpower - Selecting the Correct Cable image: https://blog.interpower.com/hubfs/Interpower_March2018/Images/interpower-intl-cable-featured-product-photo.jpg --- [![Interpower Facebook](https://blog.interpower.com/hubfs/Interpower_March2018/Images/facebook-button-black.png "Interpower Facebook")](https://www.facebook.com/interpowercorporation) [![Interpower LinkedIn](https://blog.interpower.com/hubfs/Interpower_March2018/Images/linkedin-button-black.png "Interpower LinkedIn")](https://www.linkedin.com/company/interpower-corporation) [![Interpower Twitter](https://blog.interpower.com/hubfs/Interpower_March2018/Images/twitter-button-black.png "Interpower Twitter")](https://twitter.com/interpowergroup) **PHONE:U.S.** [(641) 673-5000 |](tel:6416735000) **Toll Free:** [(800) 662-2290 |](tel:8006622290) **UK** [+44 (0)1908 295300 |](tel:+4401908295300) **Freephone:**[00800 5566 5566](tel:0080055665566) [![Interpower](https://blog.interpower.com/hubfs/Interpower_March2018/Images/IC-white-site-heading.png "Interpower") ![Interpower](https://blog.interpower.com/hubfs/Interpower_March2018/Images/mobile-logo.png "Interpower")](http://interpower.com) - 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[Conforming to Local Safety Requirements](http://www.interpower.com/ic/designers/designing-for-export/Conforming-to-Local-Safety-Requirements.html) - [What standards must electronic or electrical equipment meet?](http://www.interpower.com/ic/designers/designing-for-export/What-Standards-Must-Electronic-or-Electrical-Equipment-Meet.html) - [European & International Standards Writing Agencies](http://www.interpower.com/ic/designers/designing-for-export/european-international-standards-writing-agencies.html) - [What is the CE Marking?](http://www.interpower.com/ic/designers/designing-for-export/What-is-the-CE-Marking.html) - [What is the ENEC Mark?](http://www.interpower.com/ic/designers/designing-for-export/What-is-the-ENEC-Mark.html) - [Who enforces international safety standards?](http://www.interpower.com/ic/designers/designing-for-export/who-enforces-international-safety-standards.html) - [International Safety Compliance is a Corporate-wide Effort](http://www.interpower.com/ic/designers/designing-for-export/international-safety-compliance-is-a-corporate-wide-effort.html) - 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[International Power Source Benefits](http://www.interpower.com/ic/designers/webcasts/International-Power-Source-Benefits.html) - [Selecting the Correct Cable for Worldwide Markets](http://www.interpower.com/ic/designers/webcasts/selecting-the-correct-cable.html) - [Accessory Power](http://www.interpower.com/ic/designers/webcasts/accessory-power-for-worldwide-markets.html) - [Quality Topics](http://www.interpower.com/ic/designers/Quality-Topics.html) - [60320 Withdrawal Force](http://www.interpower.com/ic/designers/QualityTopics/60320-Withdrawal-Force.html) - [Abrupt Pull Test](http://www.interpower.com/ic/designers/QualityTopics/Abrupt-Pull-Test.html) - [Hospital-Grade Power Cord](http://www.interpower.com/ic/designers/QualityTopics/HospitalGrade-Powercord.html) - [Cord Flex Tester](http://www.interpower.com/ic/designers/QualityTopics/Cord-Flex-Tester.html) - [Cord Anchorage Pull Test](http://www.interpower.com/ic/designers/QualityTopics/Cord-Anchorage-Pull-Test.html) - [Cord Anchorage Torque Twist Test](http://www.interpower.com/ic/designers/QualityTopics/Cord-Anchorage-Torque-Twist-Test-Video.html) - [Crimp Cross Section and Pull Test](http://www.interpower.com/ic/designers/QualityTopics/Crimp-Cross-Section-and-Pull-Test.html) - [Insertion-withdrawal Testing](http://www.interpower.com/ic/designers/QualityTopics/InsertionWithdrawal-Testing.html) - [Temperature Rise Testing](http://www.interpower.com/ic/designers/QualityTopics/Temperature-Rise-Testing.html) - [Vertical Flame Test](http://www.interpower.com/ic/designers/QualityTopics/Vertical-Flame-Test.html) - [In-depth Product Line Information](http://www.interpower.com/ic/designers/Indepth-Product-Line-Information.html) - [Power Cords and Cord Sets](http://www.interpower.com/ic/designers/in-depth-product-line-information/more-information-on-power-cords-and-cord-sets.html) - [Hospital-Grade Products](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-info-on-HospitalGrade-Products.html) - [Heat Shrink Tubing](http://www.interpower.com/ic/designers/in-depth-product-line-information/more-information-on-heat-shrink-tubing.html) - [Plugs and Sockets](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-info-on-Plugs-and-Sockets.html) - [High Power Pin & Sleeve Devices](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-High-Power-Pin-and-Sleeve-Devices.html) - [Connector Locks](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-information-on-Connector-Locks.html) - [Cable](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-Cable.html) - [Odd Sizes in AWG Flexible Cable](http://www.interpower.com/ic/designers/in-depth-product-line-information/odd-sizes-in-AWG-flexible-cable.html) - [Strain Reliefs](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-Strain-Reliefs-Cable-Glands.html) - [Terminal Blocks](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-Terminal-Blocks.html) - [Testing](http://www.interpower.com/ic/designers/in-depth-product-line-information/more-information-on-testing.html) - [IEC 60320 Products](http://www.interpower.com/ic/designers/in-depth-product-line-information/more-information-on-iec-60320-products.html) - [IEC 60320 C13 and C19 Connectors](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-IEC-60320-C13-Connectors.html) - [Power Entry Modules](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-Power-Entry-Modules.html) - [Accessory Power](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-Accessory-Power.html) - [Switches & Voltage Selectors](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-Switches-and-Voltage-Selectors.html) - [Circuit Breakers](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-Circuit-Breakers.html) - [Fuses & Fuse Holders](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-Fuses-and-Fuseholders.html) - [Ferrites](http://www.interpower.com/ic/designers/in-depth-product-line-information/more-information-on-ferrites.html) - [Socket Strips](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-Socket-Strips.html) - - [Interpower RSS Feeds](http://www.interpower.com/ic/interpower-rss-feeds.html) - [Interpower Connections](http://www.interpower.com/ic/designers/Interpower-Connections.html) - [Featured Product](http://www.interpower.com/ic/designers/featuredproduct.html) - [White Papers](http://www.interpower.com/ic/designers/White-Papers.html) - [Major International Testing Agencies](http://www.interpower.com/ic/designers/Major-International-Testing-Agencies.html) - [Guide to International Standards Publications](http://www.interpower.com/ic/designers/Guide-to-International-Standards-Publications.html) - [Environmental Information](http://www.interpower.com/ic/designers/Environmental-Information.html) - [Glossary of Terms](http://www.interpower.com/ic/designers/Glossary-of-Terms.html) - 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[Hospital-Grade Products](http://www.interpower.com/ic/hospitalgrade.html) - [Testing & Safety Equipment](http://www.interpower.com/ic/testing.html) - [International Power Source](http://www.interpower.com/ic/ips.html) - [Value-Added Services](http://www.interpower.com/ic/valueadded.html) - [Labeling & Packaging Services](http://www.interpower.com/ic/customlabeling.html) - [Accessories](http://www.interpower.com/ic/accessories.html) - [Sale Items](http://www.interpower.com/cgi-bin/ic.cgi/excess.p) - [Product Design Library](http://www.interpower.com/ic/designers.html) - [Designing for Export](http://www.interpower.com/ic/designers/designing-for-export.html) - [Guides, Charts, and Brochures](http://www.interpower.com/ic/designers/designing-for-export/guides-and-charts.html) - [National Power Mains](http://www.interpower.com/ic/designers/designing-for-export/national-power-mains.html) - [The Global Market Place](http://www.interpower.com/ic/designers/designing-for-export/The-Global-Marketplace.html) - [Why observe international product safety requirements?](http://www.interpower.com/ic/designers/designing-for-export/Why-Observe-International-Product-Safety-Requirements.html) - [Conforming to Local Safety Requirements](http://www.interpower.com/ic/designers/designing-for-export/Conforming-to-Local-Safety-Requirements.html) - [What standards must electronic or electrical equipment meet?](http://www.interpower.com/ic/designers/designing-for-export/What-Standards-Must-Electronic-or-Electrical-Equipment-Meet.html) - [European & International Standards Writing Agencies](http://www.interpower.com/ic/designers/designing-for-export/european-international-standards-writing-agencies.html) - [What is the CE Marking?](http://www.interpower.com/ic/designers/designing-for-export/What-is-the-CE-Marking.html) - [What is the ENEC Mark?](http://www.interpower.com/ic/designers/designing-for-export/What-is-the-ENEC-Mark.html) - [Who enforces international safety standards?](http://www.interpower.com/ic/designers/designing-for-export/who-enforces-international-safety-standards.html) - [International Safety Compliance is a Corporate-wide Effort](http://www.interpower.com/ic/designers/designing-for-export/international-safety-compliance-is-a-corporate-wide-effort.html) - [Webcasts](http://www.interpower.com/ic/designers/Webcasts.html) - [IEC 60320 Overview](http://www.interpower.com/ic/designers/webcasts/iec60320-overview.html) - [How Interpower Delights Customers...FAST](http://www.interpower.com/ic/designers/webcasts/how-interpower-delights-customers-fast.html) - [International Power Found in the Heartland](http://www.interpower.com/ic/designers/webcasts/interpower-on-ien-now-international-power-in-the-heartland.html) - [Interpower Talks Unique Device Identification System](http://www.interpower.com/ic/designers/webcasts/interpower-talks-unique-device-identification-system.html) - [How to Select Power Cords and Cord Sets](http://www.interpower.com/ic/designers/webcasts/how-to-select-power-cords-and-cord-sets.html) - [Interpower International Power Cable Explained](http://www.interpower.com/ic/designers/webcasts/interpower-international-power-cable-explained.html) - [Commonly Asked Questions](http://www.interpower.com/ic/designers/webcasts/commonly-asked-questions.html) - [International Power Source Benefits](http://www.interpower.com/ic/designers/webcasts/International-Power-Source-Benefits.html) - [Selecting the Correct Cable for Worldwide Markets](http://www.interpower.com/ic/designers/webcasts/selecting-the-correct-cable.html) - [Accessory Power](http://www.interpower.com/ic/designers/webcasts/accessory-power-for-worldwide-markets.html) - [Quality Topics](http://www.interpower.com/ic/designers/Quality-Topics.html) - [60320 Withdrawal Force](http://www.interpower.com/ic/designers/QualityTopics/60320-Withdrawal-Force.html) - [Abrupt Pull Test](http://www.interpower.com/ic/designers/QualityTopics/Abrupt-Pull-Test.html) - [Hospital-Grade Power Cord](http://www.interpower.com/ic/designers/QualityTopics/HospitalGrade-Powercord.html) - [Cord Flex Tester](http://www.interpower.com/ic/designers/QualityTopics/Cord-Flex-Tester.html) - [Cord Anchorage Pull Test](http://www.interpower.com/ic/designers/QualityTopics/Cord-Anchorage-Pull-Test.html) - [Cord Anchorage Torque Twist Test](http://www.interpower.com/ic/designers/QualityTopics/Cord-Anchorage-Torque-Twist-Test-Video.html) - [Crimp Cross Section and Pull Test](http://www.interpower.com/ic/designers/QualityTopics/Crimp-Cross-Section-and-Pull-Test.html) - [Insertion-withdrawal Testing](http://www.interpower.com/ic/designers/QualityTopics/InsertionWithdrawal-Testing.html) - [Temperature Rise Testing](http://www.interpower.com/ic/designers/QualityTopics/Temperature-Rise-Testing.html) - [Vertical Flame Test](http://www.interpower.com/ic/designers/QualityTopics/Vertical-Flame-Test.html) - [In-depth Product Line Information](http://www.interpower.com/ic/designers/Indepth-Product-Line-Information.html) - [Power Cords and Cord Sets](http://www.interpower.com/ic/designers/in-depth-product-line-information/more-information-on-power-cords-and-cord-sets.html) - [Hospital-Grade Products](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-info-on-HospitalGrade-Products.html) - [Heat Shrink Tubing](http://www.interpower.com/ic/designers/in-depth-product-line-information/more-information-on-heat-shrink-tubing.html) - [Plugs and Sockets](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-info-on-Plugs-and-Sockets.html) - [High Power Pin & Sleeve Devices](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-High-Power-Pin-and-Sleeve-Devices.html) - [Connector Locks](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-information-on-Connector-Locks.html) - [Cable](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-Cable.html) - [Odd Sizes in AWG Flexible Cable](http://www.interpower.com/ic/designers/in-depth-product-line-information/odd-sizes-in-AWG-flexible-cable.html) - [Strain Reliefs](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-Strain-Reliefs-Cable-Glands.html) - [Terminal Blocks](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-Terminal-Blocks.html) - [Testing](http://www.interpower.com/ic/designers/in-depth-product-line-information/more-information-on-testing.html) - [IEC 60320 Products](http://www.interpower.com/ic/designers/in-depth-product-line-information/more-information-on-iec-60320-products.html) - [IEC 60320 C13 and C19 Connectors](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-IEC-60320-C13-Connectors.html) - [Power Entry Modules](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-Power-Entry-Modules.html) - [Accessory Power](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-Accessory-Power.html) - [Switches & Voltage Selectors](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-Switches-and-Voltage-Selectors.html) - [Circuit Breakers](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-Circuit-Breakers.html) - [Fuses & Fuse Holders](http://www.interpower.com/ic/designers/in-depth-product-line-information/More-Information-on-Fuses-and-Fuseholders.html) - 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[Tweet](https://twitter.com/share) ![Selecting the Correct Cable](https://blog.interpower.com/hubfs/Interpower_March2018/Images/interpower-intl-cable-featured-product-photo.jpg) When designing an electrical/electronic product that will be for sale in any part of the world, deciding on the type of cable is an important step in that process. To assist in selecting the correct cable, please consider the following questions. ## Where is the End Destination for the Cable? The market that the product will be sold in, such as North America, Europe, Asia, or South America, will determine the type of cable and approvals that are needed. For example, if the product is to be sold in the United States, then North American approved cable needs to be used. If it is in Germany, then it will need to be international approved cable. If the country is China, the selection will need to be Chinese approved cable. ## What is the Application? There are two factors to consider when determining the correct type of cable: how the product will be used and the environment it will be used in. The application will determine the outer jacket material recommended for the cable. For example, a household appliance that will be used indoors will likely have a different kind of cable than a hand tool meant to be used at an outdoor construction site. ### Possible Materials for Cable Include: #### Thermoplastic Thermoplastic can be softened through heating and hardened through cooling. It can be molded when heated and can retain its shape after it cools. Thermoplastic is the opposite of thermoset. #### PVC PVC is a common thermoplastic material for cable and conductor jackets and some molded plugs. #### Thermoset Thermoset uses a heating process called curing and once the plastic is cured, it cannot be changed but keeps its shape. #### Rubber Rubber is also a common material for cable. It is a thermoset-type material. While it may be more costly than thermoplastic cable, it tends to be more durable with high levels of water and abrasion resistance. Rubber is a good choice for outdoor applications. #### Thermoplastic Elastomer TPE is a material that has characteristics of rubber, as well as thermoplastic. For indoor use, jacket material typically is PVC. For outdoor and/or industrial use, the jacket material may be rubber, TPE, or PVC. For outdoor use, it’s also important to determine what specific conditions the cable needs to be protected from, such as abrasion, water, oil, and/or sunlight. ## What are the Power Needs? The end destination for the product determines what the power needs will be. Different countries/regions have different amperage and voltage requirements. Knowing those requirements at the beginning of the design process is crucial. These factors will affect the size and type of the cable needed to supply safe electrical power. For example, in North America, circuit voltage is usually 120V or 240V, using 15A for non-industrial needs. For industrial needs, typical requirements would be 120V, 120/208V or 120/240V using 20A or less. In the European market, non-industrial needs are usually 230V using 16A or less, whereas the industrial needs could be 230 or 400V using 32A or less. North American and international cable standards dictate the ratings for different designated sizes. Because of the difference in ratings guidelines between the different standards, North American cable ratings do not necessarily match up with international cable rating standards. ## What Temperature Will the Cable Be Subjected To?  Typical indoor room temperatures may range from 20°C to 30°C (68°F to 86°F). Properly operating equipment may generate an additional 30°C (86°F), so cable for indoor applications is typically rated for at least 60°C (140°F). If the product is a heating appliance, consider using a rubber jacketed cable or a special heater type cable. Outdoor/industrial ambient temperatures and equipment usually have higher extremes and therefore the cable may need to be rated from -50°C up to 105°C (-58°F up to 221°F). ## How Will the Cable Be Connected? All electrical equipment needs some way of receiving power and the cable completes the electrical circuit from the power source to the equipment. It may be with a connector/inlet combination (detachable) or it may be hardwired with a strain relief/cable gland (non-detachable). ## Additional Resources The key to selecting the correct cable starts with knowing the end destination, the application, and the power supply requirements. Customer Service Representatives at Interpower are available to assist with questions to help determine which cable type is best for a specific electrical/electronic product. For more information on the complete line of North American and international cable offered by Interpower, including cable manufactured by Interpower, see [North American and International Cable](http://www.interpower.com/ic/cable.html). See also the Featured Product pages on [North American Cable](http://www.interpower.com/ic/designers/featured-product/interpower-north-american-cable-feature.html) and [Interpower International Cable](http://www.interpower.com/ic/designers/featured-product/featured-product-interpower-international-cable.html). Interpower offers free technical support. For further assistance, please see Interpower’s contact information below. ## Stay In-The-Know with *InfoPower* The monthly *InfoPower* blogs are created to assist you in designing, building, and maintaining products for worldwide markets by providing you with information on topics relevant to power system components. ### Subscribe to Email Updates ### Recent Posts ### Posts by Topic ## [InfoPower Archive](http://www.interpower.com/ic/infopower-archive.html) ### United States 100 Interpower Ave Oskaloosa, IA 52577 | [info@interpower.com](mailto:info@interpower.com) Toll-Free Phone: (800) 662-2290 | Toll-Free Fax: (800) 645-5360 Phone: (641) 673-5000 | Fax: (641) 673-5100 ### United Kingdom 10 Kelvin Drive | Knowlhill, Milton Keynes | Buckinghamshire, MK5 8NH | UK | [uk@interpower.com](mailto:uk@interpower.com) **UK, Ireland, Germany, Switzerland, Austria** Freephone: 00800 5566 5566 | Freefax: 00800 5655 5655 **International:** Phone: +44 (0)1908 295 300 | Fax: +44 (0)1908 295301 © 2026 Interpower. 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