Lovato transfer switch controller withn graphic display 110-440vac / 12-24-48vdc
Lovato ATL800 automatic transfer switch controller for management of two three-phase power sources and one tie-breaker with built-in RS485 communication and programmable logic.
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Why Choose the Lovato ATL800 Automatic Transfer Switch Controller?
The Lovato ATL800 is a high-performance automatic transfer switch (ATS) controller designed for intelligent management of dual three-phase power sources and one tie-breaker in advanced industrial and commercial power systems. As part of the professional Lovato ATL series, the ATL800 provides sophisticated automatic transfer functionality, integrated communication and programmable logic control for critical power continuity applications.
Designed for power engineers, switchboard manufacturers and generator control specialists, the ATL800 combines advanced monitoring functions with exceptional system flexibility. Its large backlit graphic LCD display, built-in PLC logic and expandable architecture make it ideal for complex standby power installations requiring reliable source transfer, load management and remote supervision.
With support for two three-phase power sources and one tie-breaker, 110–240 V AC and 12–24–48 V DC power supply compatibility and built-in RS485 communication, the Lovato ATL800 is ideal for industrial standby systems, generator synchronisation and critical infrastructure applications requiring dependable automatic power management.
Key Advantages
Advanced automatic transfer switch controller for complex power systems.
Management of 2 power sources and 1 tie-breaker.
Three-phase voltage monitoring with True RMS measurement.
Integrated RS485 communication and built-in PLC logic.
Expandable using EXP series modules.
Large graphic LCD display for system diagnostics and monitoring.
Key Features
Lovato ATL series ATS controller.
Management of 2 controlled power sources.
1 tie-breaker management capability.
110–240 V AC and 12–24–48 V DC supply compatibility.
Integrated RS485 communication interface.
Backlit 128 × 80 pixel LCD graphic display.
8 programmable digital inputs.
7 programmable relay outputs.
Technical Specifications
Manufacturer: Lovato Electric
Series: ATL Series
Model: ATL800
Product type: Automatic transfer switch controller
Communication: Built-in RS485 with optional expansion 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
Weight: approx. 1000 g
Advanced Automatic Transfer Control for Critical Infrastructure
Automatic transfer switch controllers continuously supervise incoming electrical supplies and automatically transfer loads between primary and backup power sources whenever abnormal voltage or frequency conditions are detected. This ensures uninterrupted operation of critical systems while minimising operational downtime and protecting sensitive equipment.
The Lovato ATL800 is engineered for advanced power management systems involving generators, utility supplies and tie-breaker configurations. Its integrated PLC logic, communication capabilities and programmable control functions make it suitable for sophisticated industrial automation and power continuity applications.
Typical Applications
Industrial mains-to-generator transfer systems.
Critical infrastructure standby power installations.
Data centre and telecommunications backup systems.
Commercial and industrial switchboards.
Utility and power distribution automation systems.
Advanced generator synchronisation and transfer applications.
Technical Specifications
Voltage
240 V
Phase
Three Phase
IP Rating
IP40
Series
ATL Series
Product type
Automatic transfer switch controller
Controlled power sources
2
Number of tie-breakers managed
1
Voltage input type
Three-phase
Rated AC supply voltage
110–240 V AC
Rated DC supply voltage
12–24–48 V DC
Operating AC voltage range
90–264 V AC
Operating DC voltage range
7.5–57.6 V DC
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 × 80 pixel
Digital inputs
8
Relay outputs
7
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
Weight
approx. 1000 g
HS Code
85389091
Frequently Asked Questions
What is the Lovato ATL800 used for?
The ATL800 is used to automatically monitor and transfer electrical loads between two three-phase power sources while also managing one tie-breaker in industrial and commercial standby power systems.
How many power sources can the ATL800 manage?
The controller is designed to manage two independent power sources and one tie-breaker.
Does the ATL800 include communication features?
Yes, the ATL800 includes built-in RS485 communication and supports optional expansion modules for additional connectivity.
Can the ATL800 operate using AC or DC supply voltage?
Yes, the controller supports both 110–240 V AC and 12–24–48 V DC supply voltages.
Where is the ATL800 typically installed?
The ATL800 is commonly installed in industrial switchboards, ATS panels, generator control systems and critical power infrastructure installations.
Trusted by Power System Engineers Worldwide
Lovato ATL series automatic transfer switch controllers are trusted worldwide by electrical engineers and switchboard manufacturers for reliable automatic source transfer, advanced monitoring and intelligent standby power management.
Voltage
240 V
Phase
Three Phase
IP Rating
IP40
Series
ATL Series
Product type
Automatic transfer switch controller
Controlled power sources
2
Number of tie-breakers managed
1
Voltage input type
Three-phase
Rated AC supply voltage
110–240 V AC
Rated DC supply voltage
12–24–48 V DC
Operating AC voltage range
90–264 V AC
Operating DC voltage range
7.5–57.6 V DC
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 × 80 pixel
Digital inputs
8
Relay outputs
7
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
Weight
approx. 1000 g
HS Code
85389091
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
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Customers supported
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...