Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
For a 100 amp service, the Wirenco 2-2-2-4 SER aluminum service entrance cable is the one to buy: it is rated for 100 amps and 600 volts, wet and dry locations, and arrives as a pre-assembled 25-foot four-wire cut. It is rated for 100 amps and 600 volts, it is built for both wet and dry locations, and it comes as a 25-foot cut with four wires already assembled — three conductors plus a bare neutral — so you can run it from the meter to the panel without hunting down separate conductors.
I’m Mohammad Maruf — the founder and writer behind KitchPrep. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
Service entrance cable sits at the safety-critical end of a panel upgrade, so what matters is ampacity match, conductor count, and jacket material for the location. This breakdown of the 100 amp service entrance cable covers the wire gauge, the wire count, and the real buyer experience.
How To Choose The Best 100 Amp Service Entrance Cable
Buying service entrance cable is not like buying an extension cord. The wire you run from the meter socket to the main panel becomes the backbone of your whole electrical service, and the wrong cable means a failed inspection or a hot connection. Three things decide whether a cable is right for your job: the ampacity rating, the conductor count and gauge, and whether the jacket is rated for where you are running it.
Match the ampacity to your service panel
Every service entrance cable carries a maximum current rating, and it needs to meet or exceed what your panel and main breaker are set up for. A 100 amp rated cable pairs with a 100 amp service, which is what you find in smaller homes, garages, and outbuildings. If your cable is underrated for the load, the conductors run hot — and heat is what degrades connections over time.
Read the conductor count and gauge
Service entrance cable names look like a code, and they are: 2-2-2-4 tells you the gauge of each conductor in order. Three conductors in that pattern carry the two hot legs and the neutral, and the fourth smaller number is a bare ground wire. Aluminum is common in this size because it is lighter and easier to work than copper at heavy gauges, but it needs antioxidant compound on the terminations and correct torque on the lugs.
Check the location rating before you dig or run
Cable rated for wet locations uses a jacket designed for moisture exposure — outdoor runs, conduit, and underground-adjacent work. Dry-location cable is meant for interior routing only, so pick the jacket to match where the run actually goes.
Quick Comparison
| Model | Best For | Max Current | Wires | Material | Amazon |
|---|---|---|---|---|---|
| Wirenco 2-2-2-4 SER Aluminum Service Entrance Cable (25FT Cut) | Meter-to-panel runs on a 100A service | 100 A | 4 | Aluminum | Amazon |
In‑Depth Reviews
1. Wirenco 2-2-2-4 SER Aluminum Service Entrance Cable (25FT Cut)
A 25-foot cut of pre-assembled 100-amp aluminum SER cable with four wires ready to strip and land.
What you are looking at is 25 feet of above-ground service entrance cable rated for 600 volts and 100 amps. The four-wire build — three insulated conductors plus one bare neutral — is already assembled inside the jacket, so you strip it once and land your terminations. That pre-assembled design is the reason electricians grab this style for a meter-to-panel run rather than pulling individual conductors, and it is why the quality of the build is what buyers consistently bring up rather than any single component.
At roughly 0.359 pounds per foot, the roll stays manageable and does not fight you on a ladder. The conductors are 2-gauge aluminum running 7 strands each, which is the standard construction for this ampacity in SER cable. Because it is rated for both wet and dry locations, it holds up if the run passes through an exterior wall or into conduit where moisture can reach the jacket.
The catch that shows up in the notes is timing rather than quality: this order tends to arrive a few days out, so if you are on a tight project schedule, build that slack into your plan. Also be aware that aluminum terminations need antioxidant compound and correct torque on the lugs — that is not a fault of the cable, but it is the failure point people get wrong when they treat an aluminum run like a copper one.
Where this cable earns its keep
- Rated for 600 volts and 100 amps, matching a 100 amp service panel
- Four wires total — 3 conductors and 1 bare neutral — pre-assembled
- 2-gauge aluminum, 7 strands per conductor, 0.359 pounds per foot
- Wet and dry location rated, so it works on exterior and interior runs
- Buyers report it as a simpler alternative to sourcing SER cable from an electrical wholesale house
Trade-offs worth knowing before you order
- Delivery runs a few days, so plan around the lead time
- Aluminum terminations require antioxidant compound and proper tightening torque
- Sold as a 25-foot cut — measure your run before you commit
Reach for this if: you are feeding a 100 amp panel or sub-panel and want a 25-foot, four-wire cut that skips a trip to a supply counter.
Look elsewhere if: you need copper conductors or a different length — this listing is a single aluminum 25-foot cut.
Understanding the Specs
Ampere Rating
This is the maximum current the cable is designed to carry, printed in amps. A rating of 100 amps means the conductors can handle a load that large, which is why it matches up with a 100 amp main breaker and the panels you find in small homes, garages, and outbuildings. If the cable rating is lower than your service rating, the conductors run hot and the connections wear out faster.
Wire Gauge and Conductor Count
In service cable naming like 2-2-2-4, each number is the gauge of one conductor, and the count tells you how many wires sit inside the jacket. Four wires means three conductors plus one bare neutral or ground, which is what a standard split-phase service needs. Lower gauge numbers mean thicker wire, and thicker wire is what lets the cable carry more current over the same run length.
FAQ
Will a 2-2-2-4 service entrance cable carry a full 100 amp service?
Is aluminum service entrance cable as good as copper for a 100 amp panel?
Can this cable be run outdoors or in a wet location?
What does the 2-2-2-4 numbering actually mean on the jacket?
How much does this 25 foot cut of service cable weigh?
Is 25 feet enough for a typical meter to panel run?
Does this cable work for a sub-panel or a separate outbuilding?
How should I strip and terminate aluminum service entrance cable?
Final Thoughts: The Verdict
For a 100 amp service upgrade, the strongest pick is the Wirenco 2-2-2-4 SER Aluminum Service Entrance Cable — it is rated for 100 amps and 600 volts, rated for wet and dry locations, and it arrives as a pre-assembled four-wire 25-foot cut. Buyers consistently praise the build quality of the cable and the value of getting all four wires in one 25-foot cut. If your plan calls for copper instead of aluminum, or if your run is longer than 25 feet, you will need a different listing for that job. Otherwise, order this one — just build in a few days of lead time before your project day.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of September 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
As an Amazon Associate, KitchPrep earns from qualifying purchases. This does not affect which products we feature.
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