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external interface
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Automatic Transfer Switch
400 amp, 120/240V, 1-phase
generator exerciser

 

When you require a complete basic automatic transfer transfer switch, we have the solution.  The Ronk Vigilant series is designed to UL 1008 and has all the necessary delay timers, voltage sensing, frequency sensing, and generator programmable exerciser clock.  Assembled in USA  .

DESCRIPTION

The Ronk Vigilant® Automatic Transfer Switch automatically transfers critical loads in the event of a power outage. All units come standard as NEMA 3R, UL listed 1008. The Vigilant® consists of a simple, rugged design while maintaining the flexibility required to meet the needs of residential, agricultural and commercial applications..

FEATURES

Compare with the competition...

Ronk Vigilant® Series... the competition...
* galvanized steel enclosure - better corrosion resistance * painted steel
* voltage and frequency sensing on both sources * no frequency sensing on utility source
* voltage, frequency and time delay settings field adjustable * some settings fixed at factory
* interface on outside of enclosure includes exerciser,
   no need to open door
* must open door to program exerciser
   and perform other functions
* standard 2 year warranty * 1 year warranty standard, extra cost
   for 2 or 5 years if available
* normally ships quick from stock * 4 week lead time or longer

 

Specifications

Switch Current Rating 400 amps, 2 pole
Voltage Rating 120/240V, 1 phase, 60Hz standard (50Hz optional)
Temperature Ratings 45C (113F) 100% current, derate at higher temperatures, do not exceed 70C (158F)
Control Voltage Rating 9-30 Vdc (25 mA load at 12Vdc)
Control Features (see note 1)

Setting adjustments made using DIP switches and potentiometers on controller circuit board.  Details contained in Installation & User Manual.

KEY:
P.U. = pickup
D.O. = dropout
Function Adjustable Range Factory Setting
start time delay (TDES) 3-32 sec 13 sec
transfer time delay (TDNE) 11-64 sec 21 sec
retransfer time delay (TDEN) 9-256 sec 256 sec
cool down delay (TDEC) 0-256 sec 256 sec
neutral delay (600A switch & above) 0-64 sec 10 sec
voltage sensing of utility 11-18% D.O. above/below
6-13% P.U. above/below
18%
13%
frequency sensing of utility 5-12% above/below 12%
voltage sensing of generator 11-18% D.O. above/below
6-13% P.U. above/below
18%
13%
frequency sensing of generator 5-12% above/below 12%
Exerciser Clock electronic design, field adjustable for 7 day exercising without load transfer
Battery Charger not included (order separately if required)
UL Withstand & Closing Ratings 10,000 Amps (consult factory for specific protective device requirements)
Nominal Dimensions (H x W x D) 48" x 30" x 13"
Weight 190 lbs.
Warranty 2 year factory warranty

NOTES:
1) The start time delay prevents nuisance generator starts during momentary utility power variations; transfer time delay allows generator set to stabilize before load is applied; retransfer delay prevents needless power interruption if return of utility power is momentary; stop delay allows gradual generator set cool down; undervoltage sensing of utility supply provides reliable starting of generator set during brownout conditions.
2) This switch is not service entrance rated.  This generally means that you need a service entrance rated disconnect between this switch and your utility meter.

 

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