4/0-4/0-2/0-4 Aluminum Mobile Home Feeder Cable

Two 4/0 AWG aluminum hot conductors, one 4/0 AWG aluminum insulated neutral, and one 2/0 AWG aluminum insulated equipment grounding conductor. All four conductors are individually insulated, rated 600V, with USE-2 or XHHW-2 insulation.

4/0-4/0-4/0-2/0 aluminum for a 200A dwelling service under the NEC 310.12 reduced-sizing rule. For non-dwelling 200A feeders where that rule does not apply, use 250 MCM aluminum or 4/0 copper. Verify terminations at both ends are rated for the conductor size and material.

A 4-conductor aluminum cable for feeding power from a service panel to a mobile or manufactured home. Modern MHF uses USE-2 or XHHW-2 conductor insulation, both listed for direct burial and wet locations. The "four conductor, all insulated" construction sets it apart from standard SER, which usually has a bare ground.

For a residential dwelling service or main power feeder to a dwelling, 4/0 aluminum is rated for 200A under the reduced-sizing allowance in NEC 310.12. For non-dwelling applications, the standard 75°C ampacity from NEC 310.16 applies: 4/0 AWG aluminum is rated 180A at 75°C. The 2/0 equipment grounding conductor is sized per NEC Table 250.122.

Yes. The individual conductors inside standard MHF are USE-2 or XHHW-2, both listed for direct burial in wet locations. Follow NEC 300.5 for burial depth: 24 inches for direct-buried residential feeders under 600V, 18 inches under a concrete slab, and shallower depths where protected by conduit.

Yes. Since 2008, NEC 250.32 has required a 4-wire feeder to a separate structure, with two hots, an insulated neutral, and a separate equipment ground, with the neutral and ground bonded only at the main service disconnect. MHF is built exactly this way. You still need a grounding electrode (typically a ground rod, or two rods 6 ft apart if a single rod does not achieve 25 ohms) at the second structure.

Yes. NEC 250.32 requires a grounding electrode at the second structure. For mobile homes, this is typically a driven ground rod (or two rods 6 ft apart if a single rod does not achieve 25 ohms). The neutral and equipment ground must remain separated at the mobile home service equipment, since bonding happens only at the main service disconnect in the main structure. NEC 550 covers mobile home wiring specifically.

Yes. The conductors inside MHF are USE-2 or XHHW-2, both suitable for wet locations and installation in underground conduit. Some electricians prefer to pull individual XHHW-2 or USE-2 conductors through the conduit instead of the MHF assembly, because loose conductors are easier to pull and take up less conduit fill area. Either approach is code-compliant.

Voltage drop, not ampacity, is the sizing limit at long distances. Rule of thumb for a 200A load on 4/0 aluminum at 240V single phase, keeping voltage drop under 3%: about 175 to 200 ft. For runs beyond 300 ft, upsize to 250 MCM or 350 MCM. Do the actual voltage-drop calculation for the specific load and run length before ordering.

At 200A load, 240V single phase, on 4/0 aluminum, expected voltage drop is roughly 3% at 200 ft, 5% at 325 ft, and 7% at 455 ft. Standard practice keeps total voltage drop (feeder plus branch circuits) under 5%, with the feeder itself under 3%. Use a proper calculation with the actual load current before ordering.