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NEMA Connectors

NEMA connectors are connectors used for mains electricity (in North America and other countries) that conform to the standards set by the National Electrical Manufacturers Association. Some types are found in nearly all buildings in the United States. Similar and … Continue reading

About NEMA

The National Electrical Manufacturers Association or NEMA is a U.S. based association which was created on September 1, 1926 when the Associated Manufacturers of Electrical Supplies and the Electric Power Club merged. It is headquartered in Rosslyn, Virginia. It sets … Continue reading

NEMA Naming and Codes

American Plugs and Sockets Many people have trouble understanding the NEMA (National Electrical Manufacturers Association) pattern and numbering system as allocated to the US power connectors – available to purchase from our e-shop in the Mains Connectors section. The code is comprised … Continue reading

NEMA Links

The links below point to online resources that can provide further information or guidance on NEMA itself, its connectors, publications and standards: NEMA – National Electrical Manufacturers Association – NEMA is the leading trade association in the U.S. representing the interests … Continue reading

What is the best type of connection to use for Audio Visual and Home Cinema applications?

You should buy the shortest leads you can, and the highest quality you can afford. The following rules apply: For best results with Video always use the following order of preference: HDMI, Component Video, S-Video, Composite Video, SCART. For best … Continue reading

International Plugs and Voltages

A list of plugs, voltages and frequencies for countries all over the world, arranged in alphabetical order with photographs of every type of mains plug. If you are seeking information about mains wiring and the individual connectors used in many … Continue reading

Mains Wiring

Leads Direct sells a wide range of Mains leads and cables ready made for purchase online. In addition leads direct can supply roll cabling for the UK, Europe, the US and even Japan and Australia and or course our unique Custom Lead service enables … Continue reading


Soldering: A group of processes that join metals by heating them to a suitable temperature below the solidus of the base metals and applying a filler metal having a liquidus not exceeding 450 °C (840 °F). Molten filler metal is distributed … Continue reading

Custom Leads

Leads Direct specialises in creating unusual and individually personalised leads for specialist applications. Recording Studios, Television Studios, Live Performers, manufacturers, repairers, installers – even Jewellers and Trophy Makers… All these and many more have used custom leads at one time … Continue reading


We hope that you will find the sites presented here just as useful as we have found them. Each is carefully selected and reviewed by our staff, and only the best are included in our links page. Useful Services Synergy … Continue reading

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