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ASCO Transfer Switch

Model #

071139

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ASCO 400-Amp Automatic Transfer Switch Series 300SE Group G Controller SE Rated NEMA 3R | 071139

  • ASCO 400 Amp Series 300SE Transfer Switch
  • Service Entrance Rated
  • 120/240 Volts Single Phase
  • NEMA 3R Aluminum Enclosure
  • Series 300 Group G Microprocessor Controller
  • UL 1008 Listed
  • Briggs & Stratton 3-Year Limited Warranty

ASCO Transfer Switch 071139 Details and Specifications

400 Amp ASCO Transfer Switch Series 300SE

400-Amp ATS     ASCO 300 Series     120/240 Volts Single Phase    Service Rated    NEMA 3R

With Group G Controller

The ASCO Series 300 Automatic Transfer Switch has the most compact design of generator transfer switches in the industry. 400-Amp transfer switch restores critical loads after a loss of power from the main source. A Group G controller provides dependable operation in any environment with a user-friendly interface. Intuitive symbols make operation easy while LED indicators display transfer switch status. Adjust operating parameters and feature settings without opening the door.

Rugged construction and proven performance for years of reliability. Handles extraordinary demands when switching stalled motors or high inrush loads.

Rated for use as a Service Entrance Disconnect.

Series 300 Group G Controller

  • See image in gallery
  • Touch pad programming
  • 128x64 graphical display
  • Intuitive symbols for easy operation
  • LED indicators display transfer switch status
  • Active timer display
  • On-board diagnostics
  • Password protection
  • Voltage & frequency sensing
  • Status & control functions
  • Predictive outage feature

ASCO 400-Amp Series 300SE Transfer Switch

The 400-Amp transfer switch rated for use as a service entrance disconnect is completely front accessible. Access the Group G controller from the front of the switch without opening the door to change settings and access features. 

  • UL 1008 Listed
  • Interlocked single solenoid design prevents simultaneous source connections
  • Won't transfer to a dead source 

See the ASCO brochure for more features.

Briggs & Stratton 3-Year Limited Warranty

Product Specifications

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ASCO Transfer Switch

Model #

071139

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