Purchase now: Schneider Electric ATS48C66Y Altistart 48
Purchase now: Atlantech Drives provides you the Schneider Electric ATS48C66Y, a high-power Soft Starter from the industry-leading Altistart 48 family. Designed to control three-phase asynchronous motors ranging from **230 V to 690 V AC**, this unit is rated for a massive **660 Amperes** (standard connection). Unlike simple voltage-ramping starters, the ATS48 features Schneider’s patented **Torque Control System (TCS)**, which linearizes the motor torque during acceleration and deceleration, eliminating water hammer in pumps and mechanical stress in conveyor belts.
Technical Specifications and Heavy Duty Performance
The ATS48C66Y is engineered for the most demanding industrial applications. It includes an integrated bypass contactor control logic (though the bypass contactor itself is external for this frame size) to eliminate heat dissipation during steady-state running. It offers comprehensive motor protection, including thermal overload (I²t), phase failure, and underload monitoring (dry run protection for pumps).
- Part Number: ATS48C66Y.
- Model: Altistart 48.
- Rated Current: 660 A (Standard) / 1114 A (Inside Delta).
- Motor Voltage: 230…690 V AC.
- Control Voltage: 110…230 V AC.
- Power Range: Up to 630 kW (at 690V).
- Technology: TCS (Torque Control System).
- Communication: Modbus Serial (Integrated).
- Application: Pumps, Fans, Compressors.
Expert Installation Advice: «Inside Delta» Connection
Did you know you can nearly double the capacity of this starter? Expert Tip: The ATS48 supports «Inside Delta» (6-wire) connection. By placing the soft starter windings inside the motor’s delta loop, the current seen by the starter is reduced by a factor of 1.73 (sqrt 3). This allows the ATS48C66Y to drive a motor rated up to **1114 Amps**. However, ensure your motor has all 6 leads accessible and that isolation contactors are sized correctly for this configuration.
Frequently Asked Questions (FAQs)
Q: Does it prevent water hammer?
A: Yes, the «Pump Stop» profile is specifically designed to decelerate centrifugal pumps linearly, completely eliminating the pressure surge (water hammer) that destroys valves.
Q: What happens if the thyristors overheat?
A: The unit has internal PTC sensors on the heatsink. If the cooling fan fails or the cabinet gets too hot, it will trip to protect power components.
Do you need more references from this brand? Explore our full catalog of Schneider Electric here.
