Standards and Performance
Protect your home, business, and peace of mind
with the ASCO Series 165
Automatic Transfer Switch.
Why should you choose an ASCO
Automatic Power Transfer Switch?
Customer service, rock-solid dependability, and the industry's highest performance have made ASCO the first choice in emergency power for more than 110 years. Our power transfer switches are used in more emergency power backup systems worldwide than any other. ASCO is the name behind most of the technological advances in transfer switch design, and we have more patents than all other manufacturers combined. ASCO transfer switches are the first choice for installations of every kind, from homes and small businesses to the largest financial data-centers and hospitals in the world.
What you should know about UL1008... and your safety.
The Series 165... and every ASCO Transfer Switch meets or exceeds the stringent requirements of UL1008, the only UL transfer switch standard. It even says so right on the front panel. If you don't see the UL Automatic Transfer Switch label ... you're not getting the best protection money can buy.
Performance sets the Series 165 apart.
The Series 165 Automatic Transfer Switch incorporates the latest technology developed by ASCO for dependable operation in any environment.
  • When utility power fails for just 3 seconds or more, the Series 165 Automatic Transfer Switch signals the generator to start.
  • In less than 30 seconds your electrical power is restored.
  • Once the Series 165 Automatic Transfer Switch senses utility power has reached an acceptable voltage level for a period of time, it automatically reconnects your power.
  • It then smoothly shuts the generator down after a 1-minute cool-down period to extend generator life.
  • The Series 165 Automatic Transfer Switch automatically performs a test to simulate utility power failure every 14 days.
  • The user-friendly control panel also allows you to manually run a test at the push of a button.
  • LED indicators let you know the availability of both power sources and transfer switch positions.
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Florham Park, NJ 07932