The Class I vs Class II vs Class III are codes for different insulation levels for electronic appliances. The main classification is based on the degree of contact voltage that can be safely allowed when there is no power. This makes sense when you think about it because if there is no power, the electronic device cannot function properly.
It typically uses paper or cardboard as the insulating material, while Class II uses foam with a higher resistance than that paper. Therefore, it is more difficult to conduct electricity through the foam after a short contact time. The number indicates its level of insulation and, therefore, its capability to prevent dangerous electric shock when accidentally touched by metal objects.
It uses a special material called plastics to make the insulation. This plastic has excellent conductivity, and its resistance lasts longer than normal. Even if metal objects have been touched, all plastic materials are safe to touch.
It is the fittest material for electronic equipment that prevents dangerous contact voltage and protects against harmful effects of electricity such as heat or shock. It uses special materials like glass, ceramic, or carbon fiber made from very specific materials and is therefore resistant to damaging electric currents. The best insulation material for electronic appliances is, therefore, Class III.
Common Electronic Equipment with Class I, II, and III Protection:
You need to know that the above codes refer to protection measures for safety. You can buy common appliances at retail stores that adhere to Class I, II, or III for safety reasons. Therefore, you should check the box or manual for information about the type of protection provided before you purchase them (especially if you have children).
It is usual that the higher the level of protection a product has, the more expensive it is. Some electronic devices may have dual protection, which means they can be used in Class I and Class II, and it means that they can withstand both electric shock and heat.
How do you identify Class I vs. Class II vs. Class III?
The easy way to find out which type of protection is provided by a product is by looking at the label, and it has three numbers that indicate the extent of safety.
Some best practices for using electronic products:
- Do not let metal objects such as scissors or other sharp tools reach near the device.
- Do not touch the outside surface of the device, even if you have metal objects touching it.
- Never let children and pets near electronic equipment.
- Keep electronics away from water if they get wet and short-circuit (there is a body of water around your home, so take care).
- Do not disassemble any electronic device yourself; otherwise, you can get hurt or shocked. Call an expert immediately instead.
Class I, II, and III protection measures can be found in different devices. These include TVs, microwaves, refrigerators, clocks, computers, etc. If you are unsure what type of protection is provided for your electronic device, you should check the label or manual to find out the protective measures offered.