Differences Between C13 And C15 Power Cords

When dealing with electrical equipment, understanding the different types of power cords and connectors helps ensure safety, proper functionality, and compatibility. Two of the most commonly used power cord types under the IEC 60320 standard are C13 and C15.

Both are used to connect devices to the mains power supply, but they have key differences. In this article, we’ll dive into the distinctions between C13 and C15 power cords, their ideal uses, and which type is best suited for different applications.

What is a C13 Power Cord?

The C13 power cord is one of the most widely recognised and used power cords in the world. It is a three-pin connector, consisting of two flat pins and one round pin for earth/grounding. The C13 connector is typically used in low to moderate power applications and is rated for up to 10 amps at 250V AC.

The C13 connector is often used in devices such as desktop computers, monitors, printers, and other consumer electronics. It’s designed for general-purpose use and provides a reliable and safe way to deliver power to household and office equipment. A common example of this would be the power cable used to connect a personal computer or a home office printer to the mains.

Features of the C13 Power Cord

• Voltage and Current Rating: C13 power cords are rated for 10A at 250V AC.
• Shape and Design: The C13 connector has a rectangular shape with a three-pin configuration (two flat blades for live and neutral, and one round pin for grounding).
• Common Applications: Desktop computers, monitors, routers, and some consumer electronics.

Example

Imagine you’re setting up a new desktop PC at home. The power supply in your PC most likely uses a C14 inlet, which mates with the C13 power cord. This setup is common for a wide range of consumer devices that require moderate power and do not generate excessive heat.

What is a C15 Power Cord?

The C15 power cord is similar to the C13 connector, but it is designed to handle higher temperatures. While both the C13 and C15 connectors share the same shape and pin configuration, the C15 connector is rated for higher temperatures and typically supports appliances that operate in more demanding conditions.

A C15 power cord is generally used for high-power devices or equipment that requires continuous high load. It is rated for up to 10A at 250V AC, but the key difference is its temperature tolerance.

The C15 is designed to withstand higher heat (up to 70°C) compared to the C13’s typical temperature rating of 50°C. This makes it ideal for appliances that generate more heat or those that are exposed to warmer environments.

Features of the C15 Power Cord

• Voltage and Current Rating: Like the C13, the C15 power cord is rated for 10A at 250V AC.
• Shape and Design: The C15 has the same basic shape and pin configuration as the C13, but its temperature rating is higher.
• Temperature Tolerance: C15 connectors are rated for up to 70°C, compared to the C13’s maximum of 50°
• Common Applications: High-power equipment, such as servers, UPS systems, and some kitchen appliances like kettles.

Example

A good example of a C15 power cord in use would be with a high-power server in a data centre. Servers are designed to run continuously and often generate significant heat. A standard C13 power cord might not be able to cope with this heat load effectively, while a C15 connector is designed to endure higher temperatures, ensuring reliable operation over extended periods.

Key Differences Between C13 and C15 Power Cords

While both the C13 and C15 are similar in many ways, the key differences lie in their temperature tolerance and specific use cases.

Here’s a summary:

Feature	C13 Power Cord	C15 Power Cord
Current Rating	10A at 250V AC	10A at 250V AC
Temperature Rating	Up to 50°C	Up to 70°C
Design	Same basic design as C15 (rectangular with three pins)	Same basic design as C13 but rated for higher temperature
Common Applications	PCs, printers, monitors, home electronics	High-power devices, servers, kitchen appliances
Durability	Suitable for standard power use	Suitable for high-power, high-heat environments

When to Use C13 vs C15 Power Cords

When to Use a C13 Power Cord

A C13 power cord is typically sufficient for everyday household and office devices that require moderate power. If your device doesn’t generate much heat or if it’s rated for standard temperatures, the C13 is likely the best choice.

Some common scenarios include:

• Desktop PCs: A C13 cord will connect your PC to the power supply.
• Monitors and Printers: These devices often use C13 power cords for safe and reliable power delivery.
• Consumer Electronics: Many home electronics, like TVs and stereo systems, use C13 connectors.

When to Use a C15 Power Cord

On the other hand, if you’re dealing with equipment that operates in more demanding conditions, or devices that generate a considerable amount of heat, the C15 power cord is the better option. You should choose a C15 cord if:

• Servers: Data centres often use C15 cords for rack-mounted servers because of their high-performance needs and heat generation.
• UPS Systems: Uninterruptible Power Supplies (UPS) often require C15 cords to ensure safe operation under heavy load.
• High-Heat Appliances: Devices like kettles and industrial machinery that generate heat during operation.

Choosing the Right Power Cord

The primary difference between C13 and C15 power cords lies in their temperature tolerance and intended use. To ensure safety, reliability, and long-lasting performance, always refer to your device’s technical specifications when selecting the appropriate power cord, ensuring it meets the required voltage, current, and temperature ratings.

Need help finding the right power cord? Explore our range of IEC-certified power cords today and ensure optimal performance and safety for your equipment!