Discover Altivar Soft Starter ATS48
Discover Altivar Soft Starter ATS48
About Altivar Soft Starter ATS48

The Altivar Soft Starter ATS48 unit is a controller with 6 thyristors used for torque-controlled soft starting and stopping of three-phase squirrel cage asynchronous motors, for power ratings between 4 and 900 kW.It offers soft starting and deceleration functions along with machine and motor protection functions, as well as functions for communicating with control systems.
Special uses

Criterias that can influence selection of the ATS48 rating:• Starter wired to the motor delta terminals• Starter bypassed by a contactor• Motors in parallel• Slip-ring motors• Dahlander motor and 2-speed motor• Very long cable• Starters in parallel on the same line supply
Energy Savings with Motor Management Solution
Motors are critical assets, and also big consumers of electrical energy use on average 60% of the electrical energy in industrial businesses. A robust, tested, and validated architectural approach to your motor management unleashes more safety and performance for your motors, enabling advanced asset management and energy efficiency.
With an extensive offer portfolio, competencies and know-how, Schneider Electric can help you build a sustainable motor integration solution across the electrical system and the industrial processes.
Benefits of Altivar Soft Starter ATS48
Benefits of Altivar Soft Starter ATS48
Cost-effective solution
Reduce mechanical stress and improve machine availability.
Easy integration
Designed to be integrated into enclosures and control systems.
High performance
Torque Control System (TCS) to control starting and deceleration.
Integrated protection functions
Built in thermal protection for the motor, as well as protection against underloads and overcurrents in a steady state.
Features
Features
- Starting and stopping of the machine by the Altistart 48 torque control system (TCS patent: Torque Control System)
- Thermal protection of the motor
- Protection of the machine: underload and overload with adjustable threshold and times, locked rotor, rotation direction control
- Factory set for immediate start-up
- Simplified customization of settings using built in display or the PowerSuite software
- Through connection
- Control of starter bypass contactor to prevent heat dissipation
- Dual configuration (2 motors)
- Numerous configurable inputs/outputs
- Cascaded starting and deceleration of a number of motors
- Modbus Integrated, FIPIO, PROFIBUS DP, DeviceNet, Ethernet
Altistart 48 delivers:
- High performance with its Torque Control System (TCS) for controlled starting and deceleration
- Easy integration in enclosures and control systems
- Continual improvement of your machine operation by reducing mechanical or hydraulic stress and limiting energy loss and temperature rise, plus more
Taming energy
Altistart 48 offers you the benefits of its patented Torque Control System (TCS). Ready for immediate start-up, with simplified wiring and extended communication functions, it can be integrated at the heart of your applications in complete simplicity.
- Pumps
- Fans and high inertia machines
- Compressors
- Conveyors
Applications
Applications
Water and Wastewater
Learn moreFood and Beverage
Learn moreMining, Minerals and Metals
Learn moreEnergies and Chemicals
Learn more
How-to videos
How-to videos
Configuring basic parameters on Altistart ATS48
Tutorial for setting the initial parameters for first-time start-up of the Altistart ATS48 Soft Starter via the SET menu and DRC menu.
How to connect and configure ATS48 with SoMove
How to connect and configure ATS48 with SoMove.
How to start and stop several cascaded motors with an ATS48
This video explains how to set up the cascade function on ATS48.
How to manage torque control on Soft Starter ATS48
This video explains how to manage the torque of your motor and the different ways to stop your motor on ATS48.
Additional resources
Additional resources



