Technical Articles

Can I plug a 13 amp plug into a 10 amp extension lead?


When it comes to plugging electrical devices into our homes, it's important to ensure we do so safely and within the limits of our electrical systems. One question that often arises is whether it is permissible to plug a 13 amp plug into a 10 amp extension lead. In this article, we will delve into the technical aspects of this question and provide a comprehensive answer to help you make informed decisions about your electrical connections.

The Difference Between Amps and Watts

Before we address the main question at hand, it's essential to understand the difference between amps (amperes) and watts. Amperage refers to the amount of electric current flowing through a wire, while wattage indicates the rate of energy transfer or power consumed by a device. It's necessary to consider both of these factors to determine whether plugging a 13 amp plug into a 10 amp extension lead is safe.

Capacity and Safety Measures

In general, plugging a 13 amp plug into a 10 amp extension lead is not recommended. The reason for this caution is that the higher amperage may overload the extensions' capacity, leading to overheating, damage, or even fire hazards.

Extension leads are usually designed to handle a specific maximum current rating, typically either 10 amps or 13 amps. Plugging a higher rated plug into a lower rated extension can put undue strain on the entire setup and increase the risk of electrical accidents. It's always advisable to match the amperage ratings of the plug and extension lead to ensure safe operation.

Exceptions and Alternatives

While it's generally advised not to plug a 13 amp plug into a 10 amp extension lead, there are some exceptions and alternatives to consider. Some extension leads may have a built-in safety feature, such as a circuit breaker, which protects against overload. In such cases, it may be permissible to use a higher rated plug with caution.

However, it's essential to check the manufacturer's instructions or consult a qualified electrician before attempting to use an extension lead in a way that deviates from its specified rating. Resorting to alternative solutions like using a lower wattage device, finding a higher rated extension lead, or installing additional power outlets can also help avoid potential risks associated with incompatible electrical connections.


In conclusion, it's generally unsafe to plug a 13 amp plug into a 10 amp extension lead due to the risk of overloading the system and potential hazards. It's crucial to understand the difference between amps and watts, consider capacity and safety measures, and explore alternative options when necessary. Prioritizing electrical safety is paramount to protect yourself, your property, and those around you.



Contact: Eason Wang

Phone: +86-13751010017


Add: 1F Junfeng Building, Gongle, Xixiang, Baoan District, Shenzhen, Guangdong, China

Scan the qr codeclose
the qr code