Ground fault protection per 240.13

[Isaiah]

Has anyone installed a ground fault protective device on a 480V, 1000A Main Fused Disconnect switch?


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[infinity]

Field installed? We typically had them factory installed by the manufacturer.

 

[don_resqcapt19]

Why does 240.13 even exist? It stops short of covering all of cases where this protection is required. 210.13 for branch circuits, 215.10 for feeders, and 230.95 for services.

 

[texie]

Has anyone installed a ground fault protective device on a 480V, 1000A Main Fused Disconnect switch?


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You would have to use a bolted pressure/stored energy switch AKA a Pringle switch. All the majors make them and the GFPE would have to be factory installed. Used to be pretty common when large breakers were not as common as now. Seen them as large as 4000 amp.

 

[scrubbin]

Eaton Pringle switch info:

https://www.eaton.com/content/dam/eaton/products/low-voltage-power-distribution-controls-systems/swiching-devices/resources/pringle-productaid-pa008002en.pdf

 

[Isaiah]

Why does 240.13 even exist? It stops short of covering all of cases where this protection is required. 210.13 for branch circuits, 215.10 for feeders, and 230.95 for services.

Good point Don


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[Isaiah]

Field installed? We typically had them factory installed by the manufacturer.

We have time to have it field installed


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