>I do not think that is correct.
>
>My SB-220 does not use the neutral. It uses
>hot-ground-hot in the power cord. The "third" wire
>is connected to the chassis, and goes to the AC line's
>ground, not the neutral. The schematic supplied with
>mine clearly defines the third wire as "ground" and
>does not refer to "neutral" at all. Nothing on the
>primary side of the wiring is connected to the
>chassis.
>
>The 120VAC fan is driven from one of the primary
>windings of the power transformer when it is wired for
>220VAC - essentially a center-tap. The "third" wire
>is not used for carrying any current, except fault
>current.
>
>If you ran the neutral wire into an SB-220, I am not
>even sure where you would connect it.
>
** I connect the Neutral on the SB-220's 240v 3-wire line cord to the
chassis. Normally, no current flows in this wire, but the
Neutral-chassis connection does serve to prevent much voltage from
appearing on the chassis during a fault.
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