The ASCO Three-Source Priority Systems are similar to the ASCO three-source systems except they protect two critical loads rather than one critical load. Upon the loss of the utility power source, the system provides all necessary controls to start both alternative power sources.
The ASCO Automatic Transfer Switchboard contains two ASCO 2000 ampere automatic transfer bypass-isolation switches, with circuit breakers on the normal and load side of each switch. An ammeter and voltmeter are also located on the load side of each switch.
The ASCO 185P Standby Transfer Load Center is a
completely integrated package suitable for Residential applications. The
185P incorporates the Series 185 Automatic Transfer Switch
with microprocessor controller.
The ASCO Series 386 Non-Automatic Power Transfer Switch
is generally used in applications where operating personnel are
available and the load is not an emergency type requiring automatic
transfer of power.
The ASCO Series 300 was designed to automatically
transfer critical loads in the event of a power outage. It is also
designed to handle total system loads including motors and other high
inrush and inductive loads.
ASCO Power Transfer Switches are the standard of
the industry. High speed transfer of loads between alternate sources of
power, regardless of ampacity size, is achieved by a reliable, field
proven solenoid operating mechanism.
ASCO protects medium voltage loads by offering maintainable and highly
proven power transfer switches. The switches can be configured with
protective relays and other options to meet specific project