TS 840 TRANSFER SWITCH
PM057 REV 8 10/01/25 6 Thomson Technology
"Standard" enclosures are all transfer switch enclosures Thomson Technology offers
in NEMA 1, NEMA 2, NEMA 3R and NEMA 4X for the above listed product. If a
customer requests a custom enclosure it would not be covered under the generic
certificate; if certification were a requirement Consult factory before ordering.
The Automatic Transfer Switches are qualified to the highest known level in North
America; based on site class D. Specifically this is a spectral acceleration of 342%.
The transfer switch must be installed per the anchoring details provided for seismic
qualification. The equipment can be mounted in alternate means and still qualify if a
qualified Civil Engineer designs the alternate method of anchoring.
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