The initials in the name of THHN Wire stands for Thermoplastic High Heat Resistant Nylon while those of TFFN Wire stands for Thermoplastic Flexible Fixture Nylon. ... Also, the TFFN wire can be used for branch circuits while the THHN wire can be used for control circuits and machine tools.
Is TFFN wire rated for wet locations?
When used as Type TFFN, conductor is rated for use up to 90°C. When used as Type MTW, conductor is rated for use up to 90°C in dry locations and up to 60°C for wet locations or when exposed to oil or coolant. When used as AWM, conductor is rated for use up to 105°C in dry locations.
Which is better Thhn or THWN?
The main difference between these two standards is their maximum temperature in wet locations. THWN has a maximum temperature of 90°C in dry and wet locations, whereas THHN wire can only be used in temperatures as high as 75°C in wet locations. However, most of these wires, so you can use THHN and THWN interchangeably.
Is AWG the same as Thhn?
THHN wire has tightly bunched copper strands that give it a rigid and inflexible quality. ... 6 AWG welding cable is made with thinner copper strands and rubber insulation. The rubber not only protects the cable from harsh environments but also lends a flexible and bouncy quality to the cable.
What is TFFN used for?
The TFFN wire is used in situations where the NEC has indicated the fixture wire to be used. The THHN wire on the other hand, is not used in such situations. Also, the TFFN wire can be used for branch circuits while the THHN wire can be used for control circuits and machine tools.
Is Thhn wire the same as AWG?
THHN wire has tightly bunched copper strands that give it a rigid and inflexible quality. ... 6 AWG welding cable is made with thinner copper strands and rubber insulation. The rubber not only protects the cable from harsh environments but also lends a flexible and bouncy quality to the cable.