Electric Furnace Wiring Size

5kw 17 000 btu s 7kw 24 000 btu s 8kw 27 000 btu s 10kw 34 000 btu s 12kw 41 000 btu s 15kw 51 000 btu s.

Electric furnace wiring size.

However typically electric furnaces require a draw between 60 and 80 amps. Do keep in mind that other wiring found in a furnace may be larger than 14 gauge but it is usually for direct wiring ie no plugs used. Next strip the insulation off the end of the wire and crimp the pin onto the wire. Most likely two 9 6kw strips.

Element size heating output. The exact amps an electric furnace requires is solely based on the size of the furnace and its performance capabilities. The electric furnace heating element options are displayed within the electric furnace pricing. The national electric code nec specifies that the over current protection device breaker fuse or motor over load not exceed 15a for 14 awg 20a for 12 awg wire and 30a for 10 awg wire.

The size of a breaker is determined by the amp draw. For instance wire from a power source to an electric heating element may be a larger 10 or 8 gauge 105c wire. Always follow the current nec tables for sizing. If you live in a 1 500 square foot home and your btu per square foot needs are 45 your calculation will be 45 x 1 500 67 500 btu output.

Sounds like you have 2 heat strips. Each kw produces about 3400 btu s of heat so the heating output of the various heat strip options are as follows.