ASCO Power Technologies ATS600A Automatic Transfer Switch

ASCO Power Technologies ATS600A Automatic Transfer Switch is a 600 A service-entrance rated automatic transfer switch designed for 3-phase, 4-wire 120/208 V (208Y/120V) electrical systems. It is offered in a NEMA 3R enclosure suitable for outdoor or harsh-environment installations and is part of ASCO's Series 300 family, with catalog variants such as J03AUSB30600CGXM representing a 600 A, 3-phase, 4-wire, 208 V arrangement at 60 Hz. The unit supports a 600 A rating and is intended for service-entrance applications, delivering automatic transfer of load between primary utility supply and an alternative source while maintaining power to critical equipment. Optional accessories include the 11BE exerciser and the 44G strip heater to aid maintenance and prevent freezing in outdoor installations. Typical applications include data centers, hospitals, laboratories, and other facilities where uninterrupted power for essential systems is required.