ATC-300+ Automatic Transfer Switch Controller

Eaton ATC-300+ Automatic Transfer Switch Controller | Advanced Power Monitoring & Transfer Control

The Eaton ATC-300+ is a microprocessor-based automatic transfer switch (ATS) controller designed to manage the automatic transfer of electrical loads between normal and emergency power sources with high reliability and operational precision. As part of Eaton's advanced ATS product line, the ATC-300+ offers real-time monitoring, programmable control functions, and enhanced diagnostics for critical power systems in healthcare, data centers, commercial buildings, and industrial facilities.

Engineered for integration with Eaton and third-party transfer switches, the ATC-300+ provides seamless operation across a wide range of voltages and configurations. It continuously monitors voltage and frequency parameters on both the normal and emergency sources and initiates transfer based on user-defined thresholds, ensuring consistent uptime and power quality.

Equipped with an intuitive, menu-driven interface, the controller features a multi-line backlit LCD display, user-programmable logic, event logging, test functions, and communication capabilities via Modbus® RTU protocol. It supports both in-phase and delayed transition switching and meets stringent UL 1008 standards for safety and reliability.

🔧 Key Features & Specifications:

• Manufacturer: Eaton
• Model: ATC-300+
• Application: Automatic Transfer Switch (ATS) Control
• Display: High-visibility LCD with real-time source status and event information
• Monitoring: Continuous voltage & frequency monitoring of both normal and emergency sources
• Transfer Modes: In-phase transfer, delayed transition, and manual control
• Event Logging: Stores up to 100 events with time and date stamps
• Programmability: User-defined setpoints and adjustable control parameters
• Communication: Modbus RTU via RS-485 serial interface
• Testing Functions: Load/no-load transfer test, timer bypass, source simulation
• Alarms/Indicators: LED indicators for source availability, switch position, alarms
• Compatibility: Works with Eaton and most third-party transfer switches
• Standards Compliance: UL 1008 Listed
• Power Supply Range: 85–264 VAC / 90–300 VDC
• Operating Temperature: –20°C to +70°C (–4°F to +158°F)
• Condition: New, unused

The Eaton ATC-300+ offers advanced control and visibility for mission-critical power systems. With its robust design, flexible programming, and real-time communication features, it delivers the intelligence and reliability needed to maintain continuous operations across a wide range of facility types.

Eaton ATC-300+ Manual