125 Amp Service Wire Size

If your home has fuses instead of breakers the panel will contain a main fuse block with an amp rating that identifies the total service size of your home.

125 amp service wire size. If it is currently fed by a 2 pole 40 amp breaker at the main panel then the size of the wires going to the sub panel are not likely to carry much more than 40 50 amps if they are 8 size wire gauge. Price high to low. Each wire size or wire gauge awg has a maximum current limit that a wire can handle before damage occurs.

It is important to pick the correct size of wire so that the wire doesn t overheat. 500mcm copper wire with an insulation factor of 75 and 90 degrees c is rated at 380 and 395 amps respectively. Most homes served by fuse panels have 60 amp or 30 amp service.

291 67 x 125 364 6. Put holes in either the top or the bottom of the panel and then secure the knock out clamps onto the panel and pass the leads through and tighten using a screwdriver. The requirements of the national electrical code nec and local codes must always be followed.

Ask question asked 1 year 10 months ago. Enter your proposed cable size type of insulation voltage ambient temp 30 is norm your cable length and circuit load in amps. Other factors must be considered grouping fixing pass through insulation.

Not suitable for ring mains. Cable length in mtrs. The wire size according to code has to be up sized to 125.

You will indeed need permanent signage at all. In stock at store today. Source voltage the choices in the calculator are the most common and are nominal values.