Is this a NEC Service Switch?

[SteveWag]

This is USA and NFPA as well as other US codes are in force.
I have just returned from a generator and transfer switch start-up. The transfer switch is rated a “Suitable for Use as a Service Entrance” and the AHJ has signed off (although at the time of inspection the transfer switch was not receiving control power). The procedure for disconnecting utility power is: move a front mounted control switch from AUTO to SERVICE OPEN; wait for the gen-set to start (in this case 4 min); the gen-set will power the utility breaker to open; manually stop the gen-set. The building is now powered down. The other option is to open the transfer cabinet and manually operate the breaker. This is a 480 volt 800 amp system and will require near max PPE.
I can see how this meets the intent of 230.76 and/or 230.77.
The gen-set in not life/safety and the four min is to allow an air handling door to open.
Too insure utility disconnect OPEN, the PLC must function, the gen-set must come up to speed and voltage and the breaker motor must operate.
I can’t believe this meets code.
Steve

 

[waross]

Does the transfer switch use circuit breakers? Will the breaker trip open in the event of a fault or overload?

Bill
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"Why not the best?"
Jimmy Carter

 

[SteveWag]

The Utility switch is a thermal-magnetic overcurrent device, so the Service current protection seems OK. My question is that this does not seem to satisfy the intent of 230.76 and/or 230-77. Or even the spirit of 230.71 (B), mentioning “six operations of the hand”. In this case, a dead battery will prevent operation of the Service disconnect.
Steve