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发布日期:2021年11月27日
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Buying a Manual Transfer Switch

Q: What options should I consider when buying a manual transfer switch?

A: You should consider the following options:

Type

Amperage/Watts/Voltage/Phase

What amperage and watts are available from your generator? What utility amperage do you have? Does your generator support 120V only or 120/240V? Is your electrical system single or three phase?

Branch Circuits

How many branch circuits do you want to power from your generator? What amperage do those circuits need to be?

Power Inlet

How are you going to connect your generator to your transfer switch? Do you want a power inlet built into the transfer switch? Do you want a power inlet box separate from the transfer switch? Be sure the NEMA configuration of your power inlet corresponds with the NEMA configuration on your generator receptacle (L5-20, L14-20, L5-30, L14-30, etc.)

Watt Meters

Do you want watt meters on your transfer switch?

Cabinet Type

Will the transfer switch be inside or outside? Outside cabinets should be NEMA 3R. NEMA 4 and 12 are also available for some commercial and industrial transfer switches.

Return to FAQ

Return to Manual Transfer Switches


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