Request A Call Back


You haven't added any products to your clip book yet.

Featured Product

The 1st authorised UK Meanwell distributor
Providing quality products and service at the best price.

New Products

12W Non IP Rated Constant Voltage LED Drivers

PCV12 Series are a range of 12W single output constant voltage led drivers, of non waterproof...

In Development

600W Single Output IP65 Rated Enclosed Power Supplies

HLG-600H-A series is a high performance dustproof and waterproof, to IP65 ingress protection...

Latest Sunpower News

Custom Power Supply Metalwork
Manufacturing Services
Modified Power Supplies

IEC Protection Classes

Sunpower UK's Electronics GlossaryIEC Protection Classes

IEC Protection Classes: Used in the electrical appliance manufacturing industry to differentiate between the protective earth connection requirements of devices.

Class I
These appliances must have their chassis connected to electrical earth (ground) by an earth conductor.  A fault in the appliance which causes a live conductor to contact the casing will cause a current flow in the earth conductor.  The current should trip either an over current device or a residual current circuit breaker, which will cut off the supply of electricity to the appliance.

Class II
A Class 2 or double insulated electrical appliance is designed in such a way that it does not require (and must not have) a safety connection to electrical earth (ground).

Class III
Designed to be supplied from a SELV power source. The voltage from a SELV supply is low enough that under normal conditions a person can safely come into contact with it without risk of electric shock. The extra safety features built into Class 1 and Class 2 appliances are therefore not required.


This Electronics Dictionary is a free service provided by Sunpower UK, and includes an ongoing list of current electronics vocabulary in use today. Sunpower UK sells a bespoke product range of electronics power supplies suitable for all your power supply needs, be it large or small.