TESCO's Meter Socket Jumper Covers offer a safe and easy method of bypassing a meter socket. The Jumper Cover can be used with either ringless or ring-style meters, and is designed to take the place of the electric meter. All TESCO Meter Socket Jumper Covers are manufactured in the USA. Features: - UV stabilized plastic - UL 94-5VA flame rating - UL 414 approved - Fiberglass reinforced polycarbonate - Sturdy handle for easy removal Specifications: - 320 Amp capacity (class A meter sockets) - 4-blade designed for 1S, 2S or 12S meter forms (Catalog No. 277-4) - 6-blade designed for 14S, 15S or 16S meter forms (Catalog No. 277-6)