A switch or device that cuts power to a piece of equipment so it can be serviced safely.
A device that opens an electrical circuit so that equipment can be safely de-energized for maintenance or emergencies. The NEC requires disconnects within sight of equipment they serve, such as HVAC units, motors, and appliances. Disconnects can be fusible or non-fusible and may include lockout/tagout provisions.
Each rooftop HVAC unit was provided with a lockable fusible disconnect mounted within sight of the unit.
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