ASCO Series 185P Standby Transfer Load Center

ASCO Series 185P Standby Transfer Load Center | FrontView
ASCO Series 185P Standby Transfer Load Center | FrontView

Working hand in hand with your generator, ASCO’s Series 185 Automatic Transfer Switch silently provides dependable 24-hour protection from a power failure, and springs into action only when needed.


  • User-friendly control interface with intuitive symbols and visual indicators to inform operator oftransfer switch and power source status.
  • 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.
  • Nominal service voltage 240V 50/60Hz, single phase, 3 wire AC systems.


  • 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.
  • Available in NEMA Type 1 Indoor (steel) and Type 3R Outdoor (aluminum) enclosures, with hinged door designs.
  • Suitable for controlling standby generators with 2-wire automatic starting circuits.

Brochures and Data Sheets