IEC 60320

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IEC 60320 is the set of international rules for non‑locking power connectors that link cords to household and similar appliances. It covers devices that run on up to 250 V AC and up to 16 A. The aim is to let manufacturers use standard inlets and country‑specific cords, so one appliance model can be sold in many countries by swapping the cord set.

What it covers
- Appliance couplers include both the inlet on the appliance and the matching connector on the cord, as well as any plug on a cord set.
- Cord sets are cords with a plug on one end and a connector on the other, designed to connect the appliance to the mains. Interconnection cords connect two appliances.
- The standard defines the shape, size, current and temperature ratings, and safety requirements for these parts. It also defines how to test and rate them for safe use.

Common connector types
- C13/C14: One of the most common for computers, monitors, printers, and many peripherals.
- C7/C8 (figure‑8 or “infinity”): Used on smaller electronics and portable gear.
- C5/C6 (cloverleaf or “Mickey Mouse”): Often found on laptop power supplies and some projectors.
- C15/C16 (hot‑condition): Higher temperature rating, used for kettles and other high‑heat devices, sometimes also seen with computer equipment in certain regions.
- C1/C2: Older, less common now but still seen on some devices.

Key ideas
- Inlets and connectors are designed to fit only with compatible mates, so you can’t safely plug a high‑temperature connector into a low‑temperature inlet.
- The standard helps keep cords replaceable and exchangeable, which makes repairs, upgrades, and regional use easier.
- Many products use country‑specific cords, so the same appliance can be used worldwide with the right cord.

Why it matters
- It supports worldwide distribution by allowing a single appliance to be used with different cords for different regions.
- It helps reduce safety hazards, maintenance costs, and product lifecycle complexity.
- Variants exist for higher currents and higher temperatures, and some regions follow local safety certifications (like UL or CSA) in addition to the IEC standard.

Common uses
- IT equipment (computers, servers, monitors), printers, and other office gear
- Audio/visual equipment
- Medical and scientific devices
- Household appliances and kettles (with the appropriate hot‑condition cord)

Overall, IEC 60320 standardizes how appliances connect to power through cords, enabling safe, interchangeable, and regionally adaptable power solutions.