Centers closed electrically 5 / 3 1 / 8 "centers closed, dual control electric
Centri chiusi comando elettrico separate 5 / 3 1 / 8 "centers closed, dual-control electric power separate
Dual control electric Dual control electric
Dual control electric seperate Dual control electric separate
Electric control 3/2 1/8" electrically separate power supply, spring return
Electric control power-operated power-operated, spring return