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Are Double Throw Safety(or manual transfer) Switches suitable for use as service entrance equipment?

Product design features
Product Line:
Safety Switches
Electrical Interlock Kits

Many of the Double Throw Safety Switches are Suitable for use as Service Entrance Equipment with a field or factory installed Solid Neutral assembly or Service/Equipment Ground kit. 
1) Some Double Throw Safety Switches do NOT have Solid Neutrals that can be used in the switch and some can ONLY be factory installed, but when factory installed they will loose the UL Listing.
Refer to the current On-Line Digest Plus Selector to determine the specific catalog numbers.     On-Line digest link
2) For General Duty Safety Switches, see FA99901.  
3) For Heavy Duty Safety Switches, see FA91974
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