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Manual 3Ph 250A

We offer 250 amp three phase manual transfer switches from Asco and Thomson. All models are electrically operated. Asco models include a microprocessor controller, and some are rated 260A as marked. Open Transition (break-before-make) is standard, but see Notes in the chart below for other available options.

Transfer
Switch
VAC Suggested
Applications
Notes
Asco 300SE
NUS
Up to
600
Commercial, Telecom,
Farm, Light Industrial
Service Entrance Rated
Delayed Transition option
Asco 300 NTS
(260A)
Up to
600
Commercial, Telecom,
Farm, Light Industrial
Delayed Transition option
Thomson
TS870SE
Up to
600
Commercial,
Industrial
Service Entrance Rated
Thomson
TS870
Up to
600
Commercial,
Industrial
Thomson
TS870SE-TCP
Up to
600
Commercial,
Industrial
Service Entrance Rated
Cam-lock Connections
Thomson
TS870-TCP
Up to
600
Commercial,
Industrial
Cam-lock Connections
Asco 4000
(260A)
Up to
600
Industrial, Telecom,
Commercial
Closed Transition option
Delayed Transition option
Asco 7000SE Up to
600
Mission Critical
Industrial, Telecom,
Commercial
Service Entrance Rated
Closed Transition option
Delayed Transition option
Bypass Isolation option
Asco 7000
(260A)
Up to
600
Mission Critical
Industrial, Telecom,
Commercial
Closed Transition option
Delayed Transition option
Bypass Isolation option

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