SageBrush
REJECT Fascism
No disconnect needed. The 150V volts to ground means each 'hot' wire in turn measured against ground. For your 240V circuit it will be 120V on eaxh legSome are saying that putting in a breaker smaller than 60A avoids this requirement, but what about the 150 volts-to-ground stipulation? Seems that any 240V permanently wired equipment would need the disconnect, regardless of amperage.