Machine Tool Wire Vs Thhn

Machine tool wire mtw consists of stranded soft annealed copper conductors insulated with polyvinylchloride pvc.

Machine tool wire vs thhn.

Thhn wire can be found in a variety of forms. Can be solid or stranded depending on the size. As other post indicate it is a poor choice for control panel interior wiring. Thhn thwn mtw is a general purpose insulation system for field wiring.

Machine wire rated mwr wire often has the dual thhn thwn rating stamped on its nylon or pvc jacket. Although machine tool wire is qualified for many wiring applications it is a simply. The pvc insulation is meant for use in most household appliances. Depending on the size can be either stranded or solid.

Mtw wire is used indoors only because it cannot resist water at all. Typical uses of tw thw electrical wire tracer are in control panels air conditioning equipment refrigeration equipment control wiring of machine tools and automatic washers. The difference between thhn and mtw is the nylon over the pvc insulation on the thhn wire. It is a pvc hookup wire and although machine tool wire is qualified for many wiring applications it is a simply constructed wire that is made up of a highly stranded bare copper conductor.

The nylon jacket is essential for mechanical protection and protection from abrasion when the wire is fished through conduit. The uninsulated version is not thhn thwn rated and is used in the creation of windings for power supplies and motors. Mtw stands for machine tool wire. It dress very nicely due to its flexiability.

Mtw machine tool wire is only allowed for this purpose. 10 12 and 14awg are 19 strands all others are highly flexible stranding constructions. While both can be used for machine tool appliance and control circuit wiring the difference lies in the fact that tffn is used in applications where the nec designates fixture wire while thhn is not. Mtw is ul rated for 600 volts.

Nylon outer jacket with a polyvinylchloride pvc insulation. This tracer wire is used in industrial commercial and residential applications where it is dry and less than 194 f. Machine tool wire or most commonly referred to as mtw is a stranded flexible hook up wire. This high stranding of bare copper gives the wire its superior flexibility compared to that of thhn building wire.

The most popular type of building wire used in construction is thermoplastic high heat resistant nylon coated thhn wire. This wire is often found in smaller gauges and sometimes with tinned ends for ease in soldering. Mtw is used for the internal wiring of appliances including refrigeration equipment automatic washers air conditioning equipment control wiring for machine tools and in various other building applications. Because tffn and thhn wire have different ratings and are available in different gauge sizes there are slight differences in their uses.