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400 A & 600 A Vigilant® Automatic Transfer Switches Single- & three-phase; 208 V, 240 V, & 480 V; NEMA 3R standard

cUL - U.S. Listed

200 A Automatic Transfer Switches

For more automatic transfer switch amperage sizes and model options, contact Ronk.

Features and Benefits

  • Galvanized Corrosion Protection – Standard on all Vigilant enclosures; this duplex coated, galvanized G90 grade steel meets American Society for testing and Materials (ASTM) standard A653, with a service life of more than twice that of regular steel.
  • Exterior Accessibility – The easy-to-use, 7-day exerciser clock gives full control over day and time. The exerciser clock and indicator lamps are both accessible from outside the transfer switch – no need to open the door.
  • Logic Control Board – Located in the center of every Vigilant automatic transfer switch. It provides transfer switch control function with simplicity, flexibility and durability. Features include:
    • Powered from genset battery for isolation against line transients
    • Integrated voltage and frequency sensing
    • Adjustable transfer delays using on-board potentiometers
  • 2-Year Warranty

400 A & 600 A Product Nomenclature and Available Stock Models

Model Amps Voltage Phase Enclosure Poles/Wires cUL Listed
VTS04001240SX 400 A 120 Vac/240 Vac  Single (1⌀) NEMA 3R 2-pole/3-wire Yes
VTS06001240SX 600 A 120 Vac/240 Vac  Single NEMA 3R 2-pole/3-wire Yes
VTS04003208SX 400 A 120 Vac/208 Vac  Three (3⌀) NEMA 3R 3-pole/4-wire Yes
VTS06003208SX 600 A 120 Vac/208 Vac  Three NEMA 3R 3-pole/4-wire Yes
VTS04003480SX 400 A 277 Vac/480 Vac  Three NEMA 3R 3-pole/4-wire Yes
VTS06003480SX 600 A 277 Vac/480 Vac  Three NEMA 3R 3-pole/4-wire Yes

Product Nomenclature