— Critical Power Solutions Since 1948 —

Asco 300 Non-Auto Transfer Switch (3Ph 4-Pole 3000A)

Asco 300 Series
Non-Automatic (NTS) Transfer Switches

The ASCO Series 300 non-automatic transfer switch is electrically operated and manually initiated for transferring loads during a power outage. Rugged construction and proven performance assure the user of many years of reliability. Features include true double-throw operation, Group G microprocessor controller, compact design, choice of enclosure, and numerous available options. UL1008 Listed.

Choose below for Single or Three Phase Voltage and optional Service Entrance Rating to find the perfect transfer switch for your application.

Service Entrance Rated

These ASCO Series 300SE Service Entrance Transfer Switches combine manually initiated power switching with a utility circuit breaker as a disconnect device – ideal for service entrance applications. UL1008 Listed and meets all NEC requirements for service entrance use. Rugged construction and proven performance assure the user of many years of reliability.

Not Service Entrance

These ASCO Series 300 Transfer Switches offer manually initiated power switching without the service entrance equipment for applications that already have service entrance equipment or don’t require it. UL1008 Listed. Also designed to handle the extraordinary demands placed on the switch when starting or restarting installed motors and switching high inrush loads.