A Quick Look into Type MC Armorlite Copper Conductor

There are numerous Type MC cables and there are many other different types of cables on the market. However, today we find most electricians recommending the Type MC cables for most applications, including safe environments like institutions and residential buildings. MC stands for “Metal Clad”, which makes the cable sturdy and safe, even in harsh environments. So they are usually used in industry and even in harsh commercial applications.

The Sturdy Stuff

The backbone of MC cables is the conductor, which comes in soft-drawn copper of type THHN/THWN-2. These conductors have a maximum working temperature of 90°C in dry locations. The copper conductors carry the electricity to buildings, so they must be made with stiff copper strands that do not bend easily, especially when you have to push the cables through conduits or ducts. Of course, these cables can also be used without conduits or ducts and can be used outdoors, in raceways and for underground wiring.

The Insulation

The insulation is very important as it covers the copper strands and protects them from various elements. The Type MC Armorlite Copper Conductor has Type THHN/THWN-2 conductor’s insulation, which can be used in both wet and dry locations. THHN stands for “Thermoplastic High Heat Nylon” where it has a coating of nylon for protection. The “HW” THWN stands for heat resistant and wet-location suitability.

The All-Powerful Armor

Next comes the armor, which is what separates the Type MC from all other types of cables. The armor is made of a lightweight interlocking aluminium armor which is 45% lighter than other metal clad cables where the metal is steel. The armor is mainly designed for indoor usage but it can be used outdoors when necessary.

General Applications

The Type MC cables can be used in signal circuits and is also permitted for use in control, lighting and power systems. They can also be used wherever NEC regulations permit their usage, such as in cable trays and raceways, too.