Potencia Crítica

The Zenith GTX Series of automatic transfer switches (ATS) are built for light industrial and commercial critical applications requiring the dependability and ease of operation found in a power contactor switch. The GTX transfer switches are designed for standby applications, and incorporate a double-throw, mechanically interlocked contactor mechanism.

The GTX transfer switches are equipped with an optional MX70 Microprocessor Control Panel.

• Undervoltage sensing (90% pickup/80% dropout) of the utility source
• Voltage and frequency sensing of the generator source (90% voltage/95% frequency pickup)
• Time Delay Engine Start – 3 seconds (P)
• Time Delay Engine Warmup – Transfer to Generator – 3 seconds (W)
• Time Delay Utility Stabilization/Retransfer to Utility – 10 minutes (T)
• Time Delay Engine Cool Down – 5 minutes (U)
• Indicating LEDs for power availability, switch position and load energized
• Pushbuttons for test, engine start (manual), generator exerciser, timer bypass and program cancel
• Wiring interconnection plug designed to prevent mis-operation errors
• Special status annunciation of in-phase transfer and timer operation
• Smart diagnosis program and in phase monitor
• Selectable 7, 14, 21 or 28 day (factory set 28 days) generator exerciser timer
• Diagnostic LED indications in logical one-line configuration. All time delays can be adjusted using MX70 software.The GTX Power Panel includes:
• Double throw and mechanically held
• Arc quenching grids, enclosed arc chamber and wide contact air gap
• Fast contact transfer speed less than 100ms

The unit is available in open type (non-enclosure), NEMA 1 (IP20) or NEMA 3R (IP24) enclosures.

Additional options include:

• A3/A4 Auxiliary contacts (1 each) closed in Source 1 and Source 2 positions