• Nominal voltage 120/240 V 60 Hz, single phase
• Listed to UL1008 Transfer Switch Equipment and CSA Certified to CSA 22.2 No. 178-1978 Automatic Transfer Switches
• Meets National Electrical Code (NEC) and National Fire Protection Association (NFPA) requirements.
• True double-throw contacts (no intentional off position), with inherent mechanical interlocking to prevent connection of generator and utility source.
• Convenient terminals to connect neutral and ground conductors from service and load feeders.
   

• 3-second time delay to override momentary utility source
• 15-second transfer to emergency time delay to allow engine generator to stabilize after starting
• 15-second time delay after transfer to the standby source to ignore momentary voltage dips on the generator during initial loading
• 5-minute time delay on retransfer to allow utility source to stabilize prior to transferring the load back to utility
• 1-minute unloading running time delay for engine generator cool-down before shutdown

Diagnostic Indicators: The 165 Automatic Transfer Switch has a unique built-in automatic digital diagnostic monitoring system, which provides status on potential system problems such as: generator failed to start; generator over frequency; transfer switch did not transfer; and more. It's one more way you can count on ASCO to provide continuous power protection ...anytime