ASCO Series 185 Automatic Transfer Switches are suitable for operation with portable or permanently mounted standby generator.
Whether you’re home or not, an ASCO Series 185 Automatic Transfer Switch and your generator will maintain power to your business or home.The Series 185 Automatic Transfer Switch incorporates the latest technology developed by ASCO for dependable operation in any environment.
When utility power fails for just 1 to 3 seconds or more, the Series 185 Automatic Transfer Switch signals the generator to start.
In less than 30 seconds your electrical power is restored.
Once the Series 185 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 2 to 5 minute cool-down period to extend generator life.
The Series 185 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.
Product Features
Nominal voltage 120/240 V - 2 pole - 3 wire AC systems - 60 Hz - single phase.
Listed to UL 1008 for total system loads (motors and all other electrical loads).
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.
Available in Type 1 (indoor) and Type 3R (outdoor) enclosures.
Available from stock.
Time Delays
1 to 3-second time delay to override momentary utility source disruptions.
10-second time delay before load transfer to emergency source, to allow generator warm-up and stabilization.
0 to 4-second time delay while on standby source to ignore momentary generator voltage dips during initial loading.
5-minute time delay on retransfer to ensure stability of utility power prior to transferring the load back to utility.
Adjustable 2 or 5 minute unloaded running time delay allows generator to cool-down prior to shutdown.
Diagnostic Indicators
The 185 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.
Dimensions
NEMA 1
24H x 14.25W x 8.25D
NEMA 3R
24H x 16W x 10D
Shipping Weight
44 Lbs NEMA 1 / 49 Lbs NEMA 3R
Warranty
18 Months Limited Warranty - See www.ascopower.com for details
