We offer quality 4000 Amp three phase automatic transfer switches from Asco and Thomson. Open, Closed, or Delayed Transition. Optional Service Entrance Rated and Bypass Isolation models. All transfer switches include a microprocessor controller. Open Transition (break-before-make) is standard, but see Notes in the chart below for other available options.
Transfer Switch |
VAC |
Typical Applications |
Notes |
Asco 4000 |
Up to 600 |
Industrial Commercial, Telecom |
Delayed Transition option Closed Transition option |
Thomson TS880SE |
Up to 600 |
Mission Critical Industrial Commercial, Telecom |
Service Entry Rated Closed Transition option Dual Source option Bypass Isolation option |
Thomson TS880 |
Up to 600 |
Mission Critical Industrial Commercial, Telecom |
Closed Transition option Dual Source option Bypass Isolation option |
Asco 7000SE |
Up to 600 |
Mission Critical Industrial Commercial, Telecom |
Service Entry Rated Delayed Transition option Closed Transition option Bypass Isolation option |
Asco 7000 |
Up to 600 |
Mission Critical Industrial Commercial, Telecom |
Delayed Transition option Closed Transition option Bypass Isolation option |