schneider-electric
Schneider Electric Altistart 48 Advanced Softstarter
Model: ATS48D17Y
4-hour response · Pricing in SAR · Delivery across all KSA regions
ATS48D17Y — Schneider Electric Altistart 48 Advanced Softstarter
The Schneider Electric Altistart 48 is an advanced softstarter covering 3 A to 800 A for three-phase motors on 208–690 V supply, delivering superior starting performance and comprehensive motor protection that makes it the preferred choice for critical pump, fan, and compressor motor starting applications in demanding Saudi industrial environments. Unlike basic softstarters that simply ramp supply voltage, the ATS48 uses a torque-control algorithm that monitors motor slip and adjusts voltage in real time to maintain a constant user-set torque during acceleration — a fundamentally more accurate approach that delivers consistent starting performance independent of load variation, supply voltage fluctuation, or motor temperature.
The ATS48 includes a full integrated motor protection relay function set: electronic thermal protection with motor class selection and heat sink temperature monitoring, phase loss, phase sequence, phase imbalance, under-voltage, over-voltage, stall, jam, long start, thermistor input, and ground fault monitoring via optional neutral current CT — eliminating the need for a separate motor protection relay in most applications. The Modbus RTU communication port provides event logging with timestamps, starting current profiles, and motor thermal state history, providing maintenance teams with the data needed for condition-based maintenance scheduling. The ATS48's current range reaches 800 A, covering motors up to approximately 450 kW at 400 V.
In Saudi Arabia, the Altistart 48 KSA is the standard softstarter for critical motor starting applications at ARAMCO and SABIC facilities where motor protection relay replacement and documentation of starting events is required by operations and maintenance procedures. Large boiler feedwater pump motors, high-pressure water injection pump motors, and large induced draft fan motors are typical ATS48 applications in Saudi process plants. NWC large pump station projects specify the ATS48 for its integrated protection relay capability that reduces the panel component list and wiring complexity.
Razz Middle East provides ATS48 engineering support for critical motor starting projects, including torque-ramp profile optimisation, motor protection relay setting coordination, Modbus integration, and commissioning report documentation to ARAMCO and SABIC equipment standard requirements.
Technical Specifications
Full specifications for the ATS48D17Y
- Current Range
- 3–800 A
- Voltage
- 208–690 V AC
- Control Algorithm
- Real-time torque control
- Protection
- Thermal OL, phase loss/imbalance/sequence, UV, OV, stall, jam, long start, thermistor, ground fault
- Communication
- Modbus RTU RS485 built-in
- Event Log
- Timestamped starting profiles
- Ambient Temperature
- -25 to +60°C
- Current Range Top
- 800 A (approx. 450 kW @ 400 V)
Key Features & Benefits
- Real-time torque control algorithm monitors motor slip and adjusts voltage continuously during starting, delivering consistent acceleration profile independent of load variation, supply voltage fluctuation, or motor temperature changes.
- Integrated motor protection relay functions including electronic thermal OL, phase loss, phase sequence, phase imbalance, stall, jam, long start, and ground fault monitoring eliminates the need for a separate MPR in most applications.
- Timestamped event log and starting current profile recording provides maintenance teams with condition-based maintenance data, enabling proactive identification of deteriorating motor or driven equipment performance.
- Ground fault monitoring via optional neutral current CT detects incipient insulation breakdown before complete motor failure occurs, providing advance warning of motor failure in critical process applications.
- Modbus RTU communication provides remote access to motor thermal state, last fault code, event history, and real-time current — enabling integration into ARAMCO and SABIC plant DCS and maintenance management systems.
- Motor class selection from class 5 to class 30 optimises thermal overload protection for different motor and duty-cycle combinations, from light HVAC fan starts to heavy compressor starting applications.
- Heat sink temperature monitoring within the softstarter protection system prevents thyristor damage from excessive ambient temperature or blocked ventilation, with configurable over-temperature alarm and trip thresholds.
Industrial Applications in Saudi Arabia
- Boiler feedwater pump motor starting at industrial cogeneration and steam generation plants in Jubail and Yanbu industrial cities, where integrated protection relay documentation satisfies plant maintenance management system requirements.
- Large centrifugal chiller and refrigeration compressor motor starting at district cooling plants and commercial HVAC central plant in Riyadh and Jeddah, where torque control prevents pressure surge in the refrigerant circuit.
- High-pressure water injection pump motor starting at ARAMCO water injection facilities, where integrated protection relay functions replace a separate MPR and reduce panel assembly time for contractor-built MCCs.
- Large induced draft and forced draft fan motor starting at cement and lime kilns in Saudi Arabia, where controlled torque ramp prevents mechanical coupling failure between the fan and the high-inertia fan rotor.
- NWC large pump station motor starting for 185 kW to 400 kW submersible and vertical turbine pump motors, where the ATS48's integrated protection eliminates the need for separate MPR and thermal overload relay components.
- Mine ventilation main fan motor starting at Ma'aden's mineral processing facilities, where the timestamped starting current log provides evidence for ARAMCO-style maintenance record requirements.
- SABIC process plant large motor starting for agitator, mixer, and recycle compressor motors at Jubail chemical complexes, where Modbus integration feeds starting current data to the plant DCS historian.
Industrial Supplier in Saudi Arabia
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Frequently Asked Questions — ATS48D17Y
Common questions from buyers in Saudi Arabia and the GCC