you can use URD or SER (so long as you have enough conductors) but they will be harder to pull as they are designed for direct burial and so have a thicker sheath.

What size aluminum wire do I need for 100 amp sub panel?

#2 aluminum





The cable must have a wire gauge sufficient to the amperage of the subpanel—a 100-amp subpanel requires #4 copper wires or, more commonly, #2 aluminum wires, for example. (Aluminum is often used for feeder cables because the cost is typically much lower than that of copper wires.)

What size wire do I need for a 100 amp service?

Size Wire for 100 Amp Service

Wiring a 100 amp breaker panel requires either #4 copper wiring or #2 aluminum or copper-clad wiring. Which wire used is determined by the voltage drop and length of the wiring. Many licensed electricians use #2 copper-clad or aluminum wire size.

What is the difference between URD cable and use cable?

In terms of the structure, the difference between URD and MHF cables is that a standard URD only has a neutral wire, whereas MHF has both a neutral and a ground wire. The bottom line is that both mobile feeder and URD can be used for many common aluminum cable applications.

What is URD cable used for?





URD is typically found in underground wiring systems where it can be used in direct burial applications or installed in ducts to support secondary power distribution. This durable wire is often the go-to solution to deliver power from a pad-mounted transformer to the service entry or meter of a given structure.

What wire size do I need to go 100 feet for a 100 amp service to a workshop?

For a 100 ampere circuit, the conductors will likely be required to be 3 AWG copper or 1 AWG aluminum.

What size neutral do I need for a 100 amp service?

When it comes to the lines connecting master and secondary panels, where the line will carry as much as a full 100 amps, use a 2-gauge non-metallic sheathed electrical cable. The cable must contain one or two hot wires depending on your needs, one neutral wire, and one ground wire. Each wire should be 2-gauge in size.

Can I use URD cable for sub panel?

you can use URD or SER (so long as you have enough conductors) but they will be harder to pull as they are designed for direct burial and so have a thicker sheath.

Can Ser cable be used for sub panel?



SER is a perfect cable for feeding power to your sub-panel, and, depending on the amount of amps their sub-panels are handling (we’ve seen everywhere from 50 amp to 200 amp sub-panels being serviced), our customers are using all sizes of SER as a sub-panel feeder.

What is #2 URD wire?

Underground Secondary Distribution Cables are twisted assemblies of alloy 1350 aluminum conductors insulated with cross-linked polyethylene.
2-2-2 Triplex URD Cable Specifications*:

Cable Type URD
Wire Size 2 AWG
# of Conductors 3 Conductors
Conductor Material Aluminum
Stranded or Solid Stranded

What is #2 Ser cable rated for?

600 volts



The cable is rated at 600 volts and 90_C for use in wet and dry locations. SER cables are LEAD FREE and RoHS compliant.

Is URD cable direct burial?

APPLICATION: Quadruplex Aluminum 600V URD cable is designed for use in secondary distribution circuits, where installed in duct or direct burial applications. Maximum operating temperature is not to exceed 90°C in wet and dry locations.