Service Equipment Ground-Fault Protection N-sky/iStock/Thinkstock

Service Equipment Ground-Fault Protection

In some cases, you are not going to want this protection.

If the service is a solidly grounded wye of more than 150V to ground but not more than 1,000V phase to phase, each service disconnect of 1,000A or more must have ground-fault protection [230.95]. This does not mean you can’t provide such protection for service disconnects rated under 1,000A; it’s just not required by Code that you do so.

Don’t try to “save money” if you can get by without such protection and still meet Code. Evaluate the system from an

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