Cummins - TS1311 MK11 - Automatic Transfer Switch Control Assembly

The Cummins TS1311 MK11 Automatic Transfer Switch (ATS) Control Assembly (Part No. 0300-5986) is a microprocessor-based controller designed for line-to-neutral voltage sensing in utility-to-generator applications. It ensures seamless power transitions, enhancing reliability and operational efficiency in critical power systems. 

Key Features:

• Model: TS1311 MK11

• Part Number: 0300-5986

• Brand: Cummins

• Voltage Sensing: All phases on the normal source; single phase on the generator source

• Frequency Sensing: Generator source pickup at 90% of nominal frequency; dropout at 85%

• Operating Modes: Open transition with programmed transition (adjustable 0–10 seconds); exercise and test modes

• Time Delays:

  • Engine Start: Adjustable 0–10 seconds (default 3 seconds)

  • Transfer Normal to Emergency: Adjustable 0–300 seconds (default 5 seconds)

  • Retransfer Emergency to Normal: Adjustable 0–30 minutes (default 10 minutes)

  • Generator Stop: Adjustable 0–30 minutes (default 10 minutes)

• Integrated Exerciser Clock: Configurable for 7, 14, 21, or 28-day cycles with a fixed 20-minute exercise duration and a 12-hour offset

• Control Interface:

  • Front Panel: Pushbuttons for test, override, and set exercise functions

  • LED Indicators: Status lamps for source availability, source connected, exercise mode, and test mode

• Certifications: Compliant with NFPA 110, NFPA 70, NFPA 99, and NEMA 250 standards