![]() ![]() ![]() This 2 AWG or 1/0 AWG power wire should terminate into a fused distribution block mounted as close to the amplifiers as possible and should connect to the JX monoblock with 4 AWG power wire.Ĭould anyone please let me know if I should be following the JL recommendation (go up to a 1/0 AWG power), or use 4 AWG (which is much cheaper)? Note that I am only going to consider OFC and not use CCA. If you are installing this amplifier with other amplifiers and wish to use a single main power wire, use 2 AWG or 1/0 AWG main power wire (depending on the overall current demands of all the amplifiers in the system). These are regarded as smaller wires since they have a 180A median ampacity. Use larger wire with a fused distribution block (or separate wires) for multiple amplifiers. The table contains the following: The AWG sizes for aluminum electrical wires are shown in the first chart, ranging from 4/0 to 12 AWG. JX 500/1D: Requires 4 AWG power wire minimum, unless other amplifiers are connected to the same wire. Use 2 AWG, or larger, copper power wire and a power distribution block if additional amplifiers are being installed with the JX400/4D. Answer: 3 Gauge, 100 Amps, Service entrance and feeder wire 6 Gauge, 55 Amps, Feeder and large appliance wire 8 Gauge, 40 Amps, Feeder and large appliance. JX 400/4D: Run 4 AWG copper power wire from the battery location to the amplifier mounting location, taking care to route it in such a way that it will not be damaged and will not interfere with vehicle operation. HOWEVER here is where my confusion is: This is a direct quote from the owners manuals for these amps: The amp requires a 40A fuse.Īccording to my calculations, a 4 AWG power wire into a fused distribution block with 2-4 AWG wires running out to the amps (does anyone know if that's bad to run the same gauge out from a block that is going in?) is be enough to handle both amps (800-900W RMS 90A). The second amp is a JL JX 400/4D 4 channel amp to run 4 speakers (front/back) that outputs 70W RMS x 4 4 ohms (my speakers are all 4 ohms). Shall be permitted to be smaller than the ungroundedĬonductors, provided the requirements of 215.2, 220.I'm installing a new system with 2 amps and I'm really struggling with the decision on what size of power cable to use.įirst amp is a JL JX 500/1D monoblock to run 2 10" 4 ohm subs (in parallel) so that my final load is 2 ohm. Not be required to have an allowable ampacity rating greater The feeder conductors to a dwelling unit shall If youve shopped for electrical wire, you have likely noticed that there are many types and sizes of electrical wire to choose from. The panelboard that supplies, either by branch circuits or byįeeders, or both, all loads that are part or associated with the dwelling unit. For application of this section, the main powerįeeder shall be the feeder between the main disconnect and The electrical wire can come in rolls or on spools. Electrical wiring is rated in gauge for its size and amp rating. Every wire except the ground wire is coated with a non-conductive coating of insulated material. Raceway or cable with or without an equipment groundingĬonductor. An electrical wire can be the stranded type or a solid form. Main power feeder to each dwelling unit and are installed in In Table 310.15(B)(7), shall be permitted as 120/240-volt,3-wire, single-phase service-entrance conductors, service lateralĬonductors, and feeder conductors that serve as the Two-family, and multifamily dwellings, conductors, as listed For individual dwelling units of one-family, ![]() In order for the “other” table to be used those conductors would need to be the main power feeder and they are not.ģ10.15(B)(7) 120/240-Volt, 3-Wire, Single-Phase Dwelling ServicesĪnd Feeders. Looking at wire current ratings, it doesnt look like the 10 gauge stock wires are going to cut it. Since 85 amps is not a standard size in 240.6 then you can go up to the next standard size which is 90 amps. Ive got 2 100a 24v 8s Overkill Solar BMS. OK since the conductors are in conduit then it’s likely that they can be used at the 75° C ampacity in Table 310.15(B)(16). I am trying to up load a picture but nothing happens Sub panel is right beside main wire is run through conduit ![]()
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