Lovato transfer switch controller for 3 power sources 110-440vac / 12-24-48vdc

Why Choose the Lovato ATL900 Automatic Transfer Switch Controller?

The Lovato ATL900 is a premium automatic transfer switch (ATS) controller engineered for advanced management of multiple three-phase power sources in critical industrial and commercial power systems. As part of the high-performance Lovato ATL series, the ATL900 delivers intelligent automatic source transfer, load management and integrated PLC functionality for sophisticated standby power and energy continuity applications.

Designed for electrical engineers, generator specialists and switchboard manufacturers, the ATL900 combines extensive monitoring capability with flexible expansion options and advanced communication functionality. Its large graphic LCD display, built-in RS485 communication and programmable logic architecture make it ideal for complex power distribution systems requiring dependable automation and high operational reliability.

With support for three controlled power sources, two tie-breakers, integrated current monitoring and expandable communication modules, the Lovato ATL900 is suitable for industrial power management systems, generator synchronisation applications and critical infrastructure installations where uninterrupted power continuity is essential.

Key Advantages

• Advanced automatic transfer switch controller for complex power systems.
• Management of 3 power sources and 2 tie-breakers.
• Three-phase plus neutral monitoring with True RMS measurement.
• Integrated PLC logic for programmable automation control.
• Built-in RS485 communication and NFC configuration capability.
• Expandable using EXP series communication and I/O modules.

Key Features

• Lovato ATL series ATS controller.
• Management of 3 controlled power sources.
• 2 tie-breaker management capability.
• Three-phase plus neutral voltage and current monitoring.
• 110–240 V AC and 12–24–48 V DC supply compatibility.
• Integrated RS485 communication interface.
• 12 programmable digital inputs.
• 10 programmable relay outputs and 1 static output.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: ATL Series
• Model: ATL900
• Product type: Automatic transfer switch controller
• Controlled power sources: 3
• Number of tie-breakers managed: 2
• Voltage input type: Three-phase + neutral
• Rated AC supply voltage: 100–240 V AC
• Rated DC supply voltage: 12–24–48 V DC
• Operating AC voltage range: 90–264 V AC
• Voltage measurement range: 50–720 V AC L-L
• Frequency range: 45–66 Hz
• Measurement method: True RMS (TRMS)
• Display: Backlit LCD graphic display 128 × 112 pixel
• Digital inputs: 12
• Relay outputs: 10
• Static outputs: 1
• Communication: Built-in RS485 with optional EXP communication modules
• Expandability: 3 slots for EXP series modules
• Mounting type: Flush panel mounting
• Protection rating: IP40 front / IP20 terminals
• Dimensions (W × H × D): 240 × 180 × 43.9 mm
• Operating temperature: -30°C to +70°C
• Weight: approx. 1090 g

Advanced Automatic Transfer Control for Mission-Critical Power Systems

Automatic transfer switch controllers continuously supervise electrical power sources and automatically transfer loads between utility supplies, generators and backup systems whenever voltage or frequency conditions move outside predefined limits. This ensures operational continuity while protecting sensitive electrical infrastructure and minimising downtime.

The Lovato ATL900 is specifically designed for sophisticated power management applications involving multiple incoming sources and tie-breakers. Its integrated PLC logic, communication expandability and advanced monitoring functions allow engineers to implement intelligent standby power strategies across industrial facilities and critical infrastructure environments.

Typical Applications

• Industrial multi-source standby power systems.
• Generator synchronisation and transfer applications.
• Critical infrastructure and utility power management.
• Data centres and telecommunications facilities.
• Large commercial and industrial switchboards.
• Advanced automatic transfer switch installations.

Trusted by Power System Engineers Worldwide

Lovato ATL series automatic transfer switch controllers are trusted worldwide for advanced source transfer management, intelligent monitoring and reliable operation in critical industrial and infrastructure power systems.