Generator power cord
WEN 25 ft 30 Amp L14-30 Generator Power Cord
A 25-foot, 10-gauge, 4-wire twist-lock cord from the generator's L14-30 outlet to an inlet box or transfer switch — long enough to park the generator the 20 feet from the house CPSC asks for, which a 10-foot kit cord is not.
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Best for
Connecting an L14-30 generator to a house inlet from 20 feet or more away
Specifications
| Conductors | 10/4 — 10 AWG, 4 wires |
|---|---|
| Jacket | SJTW — vinyl thermoplastic, outdoor-rated |
| Length | 25 ft (PC3040: 40 ft, same construction) |
| Rating | 30 A, 250 V |
| Ends | NEMA L14-30P plug to L14-30R connector, locking |
| Warranty | 2 years |
Specifications as published by WEN. Confirm against the current spec sheet before buying — manufacturers revise models without renaming them.
What's good
- 25 ft clears the 20-foot CO distance with slack for routing; the 40 ft PC3040 leaves room to park around a corner or downwind
- 10 AWG drops about 1.9 V (under 1%) at a full 30 A on a 240 V load over 25 ft — about 1.2% at 40 ft
- Twist-lock ends at both connections can't be tugged loose
- WEN says it fits any L14-30R generator outlet, not just WEN's
What's not
- WEN's product page states no UL, ETL or CSA listing for the cord
- Vinyl SJTW, not rubber — WEN says it stays flexible in the cold, but a rubber cord is tougher if it lives outside all winter
- Only for generator-to-inlet use: the inlet must feed a transfer switch or interlock — never adapt a cord to backfeed through a wall outlet
Our verdict
The cord is the part of a transfer-switch install that gets under-bought. A 10-foot cord means a generator 10 feet from the wall — half the distance CPSC asks for. Measure from the inlet to a spot at least 20 feet out, downwind and away from windows and doors, and buy the length that reaches it: 25 ft for most houses, the 40 ft PC3040 for a deep yard or a corner. Either length of 10-gauge copper carries a 30 A generator's full output.
Compare with the alternatives
- Kidde COBD10 Carbon Monoxide Alarm — every level of the home and outside sleeping areas, before generator season
- Kidde 30CUD10-V Smoke + CO Alarm — hallways outside bedrooms, where a smoke alarm and a co alarm are both needed
- Southwire 12/3 SJTW 50 ft Outdoor Extension Cord (2588SW0002) — running a fridge, freezer or space heater from a portable generator at a safe distance
- Reliance Controls Pro/Tran 10-Circuit Transfer Switch Kit (31410CRK / 310CRK) — portable generators up to 7,500 running watts with an l14-30 outlet
- Reliance Controls PB30 Power Inlet Box (30 A, L14-30) — interlock-kit and transfer-switch installs fed by a portable generator's l14-30 outlet
- STA-BIL Storage Fuel Stabilizer, 16 oz (22207) — gasoline generators and stored fuel cans that sit for months between outages
- Southwire Surge Guard Generator Neutral-Ground Bonding Plug (44400) — a floating-neutral generator run on cords, when an rv surge protector reports open ground or an ev charger refuses to start