Best 100 Amp Entrance Cable Options for Outdoor and Mobile Home Power Feeds
Choosing the right 100 amp service entrance cable ensures safe and reliable power delivery from the utility service to your panel. This guide highlights durable SER and SEU aluminum feeder cables designed for wet and dry locations, direct burial, and high-temperature environments. We review five top products, compare their lengths and constructions, and offer practical buying considerations to help you select the best option for your installation.
| Product | Brand | Conductor Type | Length | Key Feature |
|---|---|---|---|---|
| Wirenco 2-2-2-4 SER Aluminum Service Entrance Cable (50FT Cut) | Wirenco | Aluminum SER | 50 ft | 600V, 100A, Wet/Dry locations |
| Wirenco 2-2-2-4 SER Aluminum Service Entrance Cable (25FT Cut) | Wirenco | Aluminum SER | 25 ft | 600V, 100A, Wet/Dry locations |
| Wirenco 2-2-2-4 SER Aluminum Service Entrance Cable (75FT Cut) | Wirenco | Aluminum SER | 75 ft | 600V, 100A, Wet/Dry locations |
| Relaxweex 2-2-2-4 Feeder Aluminum Service Entrance Cable (100 ft) | Relaxweex | Aluminum SEU direct burial | 100 ft | Direct burial, 600V, 100A |
| FairySandy 50′ 1-1-1-3 SER Aluminum Service Entrance Cable (50 ft) | FairySandy | Aluminum SER | 50 ft | 600V, 100A, direct burial |
Below are five top options aligned with 100 amp service needs. Each product is suitable for outdoor feeders, is rated for 600V, and supports high-current installations typical for mobile homes, detached structures, and main feeders.
Wirenco 2-2-2-4 SER Aluminum Service Entrance Cable (50FT)

This above-ground service entrance cable is rated for 600 volts and 100 amps, enabling reliable power delivery to service panels in wet or dry locations. The 2-2-2-4 SER design provides two hot conductors, a neutral, and a ground conductor, suitable for standard service installations. Its aluminum construction offers flexibility for running feeders to mobile homes, garages, or detached structures while maintaining resistance to environmental exposure.
Wirenco 2-2-2-4 SER Aluminum Service Entrance Cable (25FT)

Compact length for shorter runs, this 25-foot option maintains the same 600V / 100A rating and suitability for wet and dry locations. Ideal for smaller installations or where panel-to-meter runs are limited, while preserving the essential SER configuration and weather resistance required for outdoor use.
Wirenco 2-2-2-4 SER Aluminum Service Entrance Cable (75FT)

The 75-foot variant provides flexibility for longer feeder routes to service panels or main disconnects. It carries a 600V rating and 100A capacity, with construction designed for outdoor exposure. This length balances convenience and performance for medium-to-large property installations or multi-structure feeders.
Relaxweex 2-2-2-4 Feeder Aluminum Service Entrance Cable (100 ft)

This direct burial option reduces conduit needs, offering moisture, corrosion, and sun resistance in a weather-ready sheath. Rated for 600V and 100A, it supports main feeders for mobile homes, studios, or detached houses. The high-temperature tolerance enhances reliability in harsh environments, making it suitable for outdoor installations with long runs.
FairySandy 50′ 1-1-1-3 SER Aluminum Cable (50 ft)

This 1-1-1-3 configuration includes three 1 AWG conductors plus a 3 AWG ground, designed for 600V and up to 100A service. The direct burial-friendly insulation and gray PVC jacket provide robust outdoor protection. This option is well-suited for large residential setups or mobile home connections where burial is preferred.
Relaxweex 2-2-2-4 Feeder Aluminum Service Entrance Cable (75 ft)

This 75-foot direct burial option balances length and practicality while maintaining 600V and 100A ratings. Its weather-resistant sheath and moisture resistance support durable outdoor feeders to service panels or main distribution points in mobile homes and detached structures.
Buying Guide: Key Considerations for 100 Amp Entrance Cables
- Conductor configuration: SER versus SEU matters for whether the cable is intended for service entrance or direct-burial feeders. SER cables include a neutral conductor and ground, suitable for above-ground runs; SEU cables are designed for direct burial without conduit.
- Voltage and current ratings: All listed options are rated for 600V and 100A, which aligns with common 100-amp service requirements for homes, mobile homes, and outdoor feeders.
- Burial method: Direct burial cables reduce conduit needs but require weather-resistant insulation and burial-safe jackets. If burial isn’t planned, choose above-ground SER designs with appropriate protection.
- Environmental exposure: Wet, dry, sunlight, and temperature tolerance impact service life. Look for cables rated for outdoor exposure and high-temperature operation (up to 90°C/194°F).
- Length flexibility: Select lengths that minimize splicing and maximize routing convenience. Shorter runs reduce voltage drop in some installations, while longer runs offer installation flexibility.
- Installation considerations: Verify local electrical codes, permit requirements, and whether direct burial or conduit is mandated by your jurisdiction and project scope.
- Grounding and bonding: Ensure the chosen cable includes a suitable ground conductor and follows panel bonding requirements for safe operation.
- Durability and warranty: Aluminum conductors offer a balance of cost and flexibility; check manufacturer warranties and field-verified performance for outdoor feeders.