What is the Difference Between Cl2 and Cl3?

The main difference between CL2 and CL3 rated cables is their maximum voltage handling capacity. CL2 cables are rated for up to 150 volts, while CL3 cables can handle up to 300 volts. Both cables are used for low voltage applications such as speaker wire, Cat5/6, and HDMI cables. They are also both regulated under NEC Article 640, 725, and 820, and are used for video, audio interconnects, remote-control, signaling, and power-limited circuits.

In terms of safety, CL2 offers some protection from electric shock, while CL3 offers a higher level of protection due to its higher voltage rating. CL3 cables may be used in place of CL2 cables, but not vice versa. The rating relates to fire safety, and it is essential to ensure that all wiring has a CL2/CL3 rating on the outer jacket when wiring homes during construction or in retro-fit applications.

Both CL2 and CL3 cables can be used for in-wall installations, and they are suitable for most speaker installations. The cables may also have additional designations, such as CLP (Plenum rated) or CLR (Riser rated), which indicate their suitability for specific applications.

Comparative Table: Cl2 vs Cl3

The difference between Cl2 and Cl3 lies in their molecular structure and electrical properties. Here's a comparison between the two:

Cl2 and Cl3 are both chemical compounds of chlorine, but they differ in their structure and properties, such as reactivity.