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Generators - Residential Control and Transfer Switch

Residential Generators:


Guardian Air-Cooled Standby Generators (7, 10, 13 and 16 kW)

GuardianŽ home standby generators automatically supply electricity to pre-selected circuits during a utility power outage. Our pre-packaged, pre-wired systems make installation fast, easy and so affordable, you'll wonder why you didn't buy one sooner! And with Guardian, the kilowatt ratings we list are the kilowatt ratings you get. Unlike our competitors who only cover a percentage of the standby loads, Guardian covers the entire load, for the full duration of the power outage. View different models and specifications



GuardianŽ Elite - 16-18 kW Air-Cooled Standby Generators

Guardian Elite models 16kW and 18kW are the quietest and most powerful air-cooled models of their size on the market today. You can protect selected circuits or all circuits, depending on your requirements. With OHVIŽ industrial engines these Elites are quiet, long lasting and maintain themselves with up to 2 years between oil changes. View different models and specifications





GuardianŽ Elite 20 – 45 kW Liquid-Cooled Standby Generators

Just because your home requires more power doesn't mean you have to pay a whole lot more. Generac Power Systems has taken all of the leading-edge technologies from our industrial product line and applied them to our GUARDIAN Elite liquid-cooled products. Models range from 20-45 kW and cost thousands of dollars less than competitors' units. They also feature automotive style, liquid-cooled engines and our exclusive Whisper-Test™ feature. You won't find more affordable products with this kind of power.
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Guardian QuietSource™ 18 – 45 kW Liquid-Cooled Standby Generators


GUARDIAN QuietSource generators are ideal for applications that require ultra-quiet operation and exceptional fuel economy. With larger and more powerful liquid-cooled engines that run at 1800 RPM under full load and our exclusive Whisper-Test feature, QuietSource generators are the quietest in the industry. In addition, these larger engines achieve greater power output with less effort, resulting in significantly reduced fuel consumption both during exercise and under full load. View different models and specifications


Ultra SourceŽ 15,000 and 17,500 Watt Portable Generators

GUARDIAN's Ultra SourceŽ portable generators are the most powerful portable generators on the market and offer the best value in the business. They supplement our complete line of residential and commercial automatic standby generators and are ideal for power on the job site or as an emergency source of electricity at home or in commercial applications such as gas stations.
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Oliver Communications Group, Inc.
Telecommunications Design & Installation
2457 Old York Road
Bordentown, NJ 08505
TEL (609)-324-1750
FAX (609)-324-1760


Transfer Switch
The transfer switch monitors utility power and signals the generator to start when utility power is interrupted. When utility power returns, the transfer switch returns the electrical load from the generator back to the utility. This ensures your most important electrical loads are powered, within seconds, even when you’re away. Unlike other pre-packaged systems, GUARDIAN includes an automatic transfer switch as standard equipment with all models.

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 standby generator does everything for you... automatically.
  • A two pole, 100-amp automatic transfer switch with integrated load center is standard equipment on all air-cooled models up to 16 kW
  • A two pole, 200-amp Service Disconnect transfer switch is standard equipment on the Guardian Elite 18 kW model.
These transfer switches are also available for liquid-cooled models or as an alternative to be purchased separately.

No. of Poles 2
Current Rating
Voltage Rating
Return to Utility Approx. 13 seconds
Exercised 7
minutes weekly
UL Listed Yes
Enclosure Type NEMA 1
(Indoor rated only)
(H" x W" x D")
26.5 x 12.5 x 7
Utility Voltage Monitor (fixed)
- Pick-up 70%
- Drop out 60%