There are next types of transfer switches to consider:
* Manually operated Meter connected switches designed to allow for a low cost and simple and inexpensive installation for generators supplying 7500watts or less.
* Manually operated Pre-select panels providing 6 to 10 pre-selected circuits that can be utilized during any generator supplied power situation.
* Manually operated Service rated (e.g. 100A, 200A, or 400A) NEMA-1(indoor rated) or NEMA-3R (outdoor rated) UL rated panels for either single or 3-phase applications.
* Automatic operated Service rated panels.
If you are using a small portable generator system and have light power requirements for lights, refrigerator, microwave, etc., the use of the Meter
connecting transfer switches can be very cost effective and simple to use and install. You will need to check with your utility company to make sure they allow the use of this type of transfer switch and the approved installation procedure. ADG can supply this type of residential transfer switch should you require one. The use of a manually operated Pre-select type of panel is also suitable for use with smaller generators. Many of the type of transfer switch will only allow 120v applications. Check specifications to make sure this type of panel will meet your power requirements. ADG can supply this type of transfer switch in both single-phase and 3-phase models.