Safety Switches and Disconnects - CEU
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The three main types of air conditioning disconnects are fused, non-fused and ______.
This device is used in applications where users need local circuit protection, for example next to a conveyor belt. 
This type of disconnect is used for: Residential service entrance, Outdoor shut-off for residential air conditioning unit, Temporary service at a construction site, Outbuilding sub-feed.
A double throw safety switch is used to manually switch from one load circuit to another.
A switch with no fuses is referred to as a ____________ safety switch.
A safety switch can be open style without an enclosure.
A switching device is an electrical device that provides a safe means to open and close a circuit.
_________ rotary disconnects are most often sold to original equipment manufacturer (OEM) customers, who then install the switches into their own control panels.
This enclosure type is intended for indoor or outdoor use, where corrosion resistance is required and is constructed of stainless steel, polymeric, or fiberglass. 
The National Electrical Code (NEC) requires that all hot tub and spa pumps be protected by a ground fault interrupter and a disconnect switch mounted within ____ feet of the hot tub or spa.