This AC WORKS brand 1.5‑foot protective adapter [L1420CB520] features a NEMA L14‑20P 20 Amp, 125/250 Volt locking plug connected to a NEMA 5‑15/20R 15/20 Amp, 125 Volt household T‑blade connector. A built‑in 20 Amp circuit breaker provides added protection by tripping power when the connected equipment draws more than 20 Amps.Constructed with STW 10/3 heavy‑duty copper wire and a 600 Volt anti‑cold weather jacket, this adapter stays flexible in extreme temperatures and withstands rugged generator, construction, and industrial environments. Backed by a 5‑year limited warranty, this adapter delivers a durable and reliable protective‑power solution.