Unlike other pre-packaged systems, Generac includes an automatic transfer switch (standard equipment with all models). This device will ensure your vital electrical loads are powered, even when you are not there.

This transfer switch is the difference between a truly automatic generator set and just another generator. No toggles to flip, no knobs to turn, no extension cords to run when you lose utility power. You will have the comfort and peace-of-mind knowing that your Guardian emergency power system does everything for you... automatically.

A two pole, 100-amp UL-listed automatic switch is standard equipment on models 04721 and 04723.

A two pole, 200-amp UL-listed automatic switch is standard equipment on model 04725.

A two pole, 200-amp Service Disconnect transfer switch is standard equipment on model 04992.

STANDARD TRANSFER SWITCH
Model Number	04678	04635
No. of Poles	2	2
Current Rating (amps)	100	200
60 Hz Phase	Single	Single
Voltage Rating (VAC)	250	250
Utility Voltage Monitor (fixed) Pick-up Dropout	80% 60%	80% 60%
Return to Utility	15 seconds	15 seconds
Exerciser 15 min. weekly *	Standard	Standard
UL 1008 Listed	Standard	Standard
Dimensions (H"xW"xD")	20x15x7	20x15x7
Enclosure Type	NEMA 3R Outdoor Rated	NEMA 3R Outdoor Rated
Unit Wt. (lbs.)	35	35

* When used with liquid-cooled models. If used with air-cooled models exercise duration will be 12 minutes.

Download Transfer Switch Specifications