Transfer Switches
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 brands, GUARDIAN includes an automatic transfer switch as standard equipment with all air-cooled 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 17 kW
- A two pole, 200-amp Service Disconnect load-shedding transfer switch is standard equipment on the GUARDIAN 20 kW model.
These transfer switches are also available for liquid-cooled models or as an alternative to be purchased separately.
PowerManager® LTS
The PowerManager LTS is designed to allow the most efficient use of the generator by monitoring and managing the backed up essential and non-essential circuits. If the generator approaches overload condition, the non-essential circuits are cycled off, allowing essential circuits to remain powered. It features a built-in, 16-circuit priority load center, a main contactor that protects the essential circuits and a secondary contactor that protects non-essential circuits. The service entrance-rated, NEMA 3R outdoor/indoor-rated enclosure has a side-opening hinged cover and conforms to 2008 National Electrical Code sizing standards.
|
No. of Poles
|
2
|
2
|
|
Current Rating (amps)
|
100
|
200
|
|
60 Hz Phase
|
Single
|
Single
|
|
Voltage Rating (VAC)
|
250
|
250
|
|
Utility Voltage Monitor (fixed)
|
|
|
|
Pickup
|
75%
|
75%
|
|
Dropout
|
65%
|
65%
|
|
|
Return to Utility
|
15 seconds
|
15 seconds
|
|
Exerciser 15 min. weekly *
|
Standard
|
Standard
|
|
UL 1008 Listed
|
Standard
|
Standard
|
|
Dimensions (H" x W" x D")
|
20 x 14.875 x 7.25
|
20 x 14.875 x 7.25
|
|
Enclosure Type
|
NEMA 3R Outdoor Rated
|
NEMA 3R Outdoor Rated
|
|
Unit Wt. (lbs.)
|
35
|
35
|
|
|