ARTronic STS 16 ~ 600 Amper Static Transfer Switches
2 Pole, 3 Pole, 4 Pole Static Transfer Switch It allows 2 different UPSs to be used for backups for the same loads or source backup for cross-connected UPSs.
ARTronic ART-STS 19" Static Transfer Switches
Two power supplies can be connected. If the primary power supply fails, the load continues to feed smoothly by entering the second power supply into the circuit.