ABB ATS021 1SDA065523R1 Automatic Transfer Switch

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1. Product Overview

The ABB ATS021 1SDA065523R1 Automatic Transfer Switch (ATS) is a low-voltage automatic transfer switch designed to automatically switch to a backup power source in case of a main power failure, ensuring uninterrupted supply to critical loads. It is suitable for industrial, commercial, and public facilities and supports fast, reliable power switching along with manual operation capability.

2. Technical Specifications (Typical)

• Model: ATS021 1SDA065523R1

• Type: Automatic Transfer Switch (ATS)

• Rated Current: 25 A

• Poles: 3P (three-pole)

• Rated Operational Voltage: AC 400 V

• Frequency: 50/60 Hz

• Operation Type: Automatic + Manual

• Mechanical Life: ≥10,000 operations

• Transfer Time: Typical 2–5 seconds

• Mounting: Panel or DIN rail installation

• Protection Class: IP20

• Communication Interface: Optional Modbus for remote monitoring (depending on configuration)

• Operating Temperature: -25 °C to +60 °C

• Optional Interfaces: Auxiliary contacts, remote signaling interface

3. Advantages & Features

• Automatic/manual switching: Automatically switches to backup power during main power failure, with manual override available.

• Fast transfer: Short transfer time ensures critical loads remain powered.

• High reliability: Industrial-grade design suitable for long-term stable operation in demanding environments.

• Modular design: Supports auxiliary contacts and remote monitoring for system integration.

• Easy operation: Clear panel indicators facilitate installation, commissioning, and maintenance.

4. Typical Applications

• Critical industrial production line power switching

• Backup power management in commercial buildings and offices

• Uninterrupted power supply for data centers and server rooms

• Critical load protection in medical facilities

• Public utilities such as airports, subways, and telecom base stations

• Power reliability assurance in automated systems

5. Installation & Operation Notes

1. Rated current matching: Select ATS rated current above the load current.

2. Proper power wiring: Ensure correct connection of main, backup, and load circuits.

3. Environmental conditions: Avoid humidity, dust, and corrosive gases; maintain good ventilation.

4. Periodic maintenance: Check ATS operation, wiring, and contact wear regularly.

5. Remote monitoring interface: Ensure communication interfaces are reliably connected if used.