The Vigilant® Series automatic transfer switch is designed to automatically transfer critical loads in the event of a power outage for residential, agricultural, commercial and light industrial applications. Units come standard as NEMA 3R, UL listed 1008. The simple, rugged and easy to install and operate design provides peace of mind that it works right when it’s needed most.
Amperage
Voltage
Phase
Enclosure
Poles/ Wires
400 A
120Vac/240Vac
Single-phase
NEMA 3R
2-pole/ 3-wire
400 A
120Vac/240Vac
Three-phase
NEMA 3R
3-pole/ 4-wire
400 A
277 Vac/480 Vac
Three-phase
NEMA 3R
3-pole/4-wire
(1) 600MCM-#4 or (2) 250MCM-1/0 (1-hole lug)
190 lbs.
Reliability and safety of electrical systems have never been more important. Ronk's American designed and assembled products are durable, efficient and last for decades.