Wiring and Installation of the ASCO Series 185 automatic transfer switch (ATS) must be performed by a licensed electrician.

Refer to the ATS wiring diagram.

DANGER! ELECTROCUTION HAZARD: Turn off utility power and turn off the generator to prevent electrocution when wiring the transfer switch.

• Preferred Source/Utility Source - connect power cables to Terminals L1 & L5 of the ATS
• Alternate Source/Emergency Source - connect power cables to Terminals L2 & L6 of the ATS
• Load - connect power cables to Terminals L3 & L7 of the ATS

You can also download and view the wiring diagram on below link:

ASCO SERIES 185 Power Transfer Switches Product Wiring

If unsure, please contact Technical Support @ 1-800-800-2726 and press 3 or send an email to technicalsupport@ascopower.com

Published for:ASCO Power Technologies USA