ASCO 1AUSA2200F4M SERVICE ENTRANCE RATED AUTOMATIC TRANSFER SWITCH 200 AMP 2 POLE 120/240 VOLT, NEMA 3R ENCLOSURE

CONTROL AND DISPLAY PANEL 
User-friendly control interface with easy to understand symbols and visual indicators to inform operator of transfer switch and power source status. 
STANDARD FEATURES 
True double-throw contacts with inherent mechanical interlocking to prevent connection of generator and utility sources
Terminals for convenient connection of neutral and ground conductors
Textured light beige color aesthetically suitable for residential applications.
Listed to UL 1008 for optional standby systems, handling total system load including motors and all other electrical loads
CUL listed for canadian installations
Meets article 702, nfpa-70 national electric code (nec) requirements
Meets NEC article 230 requirements as Service Entrance Equipment 
VOLTAGE & FREQUENCY SENSING 
Adjustable single phase sensing on normal source. Normal source pickup voltage is adjustable to either 198 volts or 209 volts; drop-out is adjustable to four incremental settings, 154 volts, 176 volts, 187 volts, or 198 volts 
TIME DELAYS 
10 second time delay before load transfer to emergency source, to allow generator warm-up and stabilization.
Adjustable 0 or 4 second time delay while on standby source to ignore momentary generator voltage dips.
15 minute time delay before load retransfer back to utility source, to ensure stability of utility power.
Adjustable 2 or 5 minute unloaded running time delay allows generator to cool down prior to shutdown.
Weekly generator exerciser with or with out load transfer.