20 Amp and 30 Amp Twist Locking Extensions

Twist locking wiring device extensions made from SOOW cable are used for heavy-duty industrial and commercial equipment, where protection against accidental disconnection is required.

Your choice of straight blade twist locking 20 amp or 30 amp connectors and lengths from 5′ – 100′.

Continental U.S. orders over $600 ship FREE! No promo code needed. Free shipping automatically applied during check out.


Length of Cable

5', 10', 25', 50', 75', 100'


L14-20 Locking, L14-30 Locking, L21-20 Locking, L21-30 Locking, L5-20 Locking, L5-30 Locking, L6-20 Locking, L6-30 Locking


Product Description

Features of 20A and 30A twist locking power cable extensions:

  • Produced with SOOW cord

  • Factory-tested

  • Straight blade locking devices available in L5-20, L6-20, L14-20, L21-20, L21-30, L5-30, L6-30, L14-30, and L21-30 NEMA configurations

  • 20A and 30A assemblies

  • Heavy-duty UL and CSA cable

  • Excellent oil, water, abrasion, and UV resistance

Data Sheet

Gencable data sheet with specs on NEMA device extensions including SOOW cable

Download 20 and 30 amp locking extensions data sheet