The Schneider Electric ATS48C25Q is a heavy‑duty industrial soft starter designed for three‑phase asynchronous motors. It provides controlled soft start and soft stop functions with advanced torque control to reduce mechanical and electrical stress during motor startup and stopping. This helps extend the service life of motor and driven equipment, improve process reliability, and reduce energy consumption. The unit integrates motor protection functions and can communicate with automation systems through optional communication modules. It is suitable for applications such as pumps, fans, compressors, conveyors, and other industrial machinery requiring smooth motor control and protection.
Technical Specifications
General
Product Type: Soft Starter for asynchronous motors
Series: Altistart 48
Model: ATS48C25Q
Device Short Name: ATS48
Utilisation Category: AC‑53A
Application: Heavy-duty industry and pump drives
Control Type: Torque-controlled soft start/stop with 6 thyristors (three-phase)
Electrical Ratings
Rated Operational Current (Ie): 250 A
Supply Voltage (Ue): 230–415 V AC three-phase
Supply Frequency: 50/60 Hz
Control Supply Voltage: 220–415 V AC
Motor Power Ratings (Typical)
Standard application: up to 132 kW @ 400 V (supply line)
Severe application: up to 110 kW @ 400 V
Delta connection (optional): up to 220 kW standard / 160 kW severe
Protection & Control Features
Torque Control System (TCS) for controlled acceleration and deceleration
Phase failure and thermal protection for motor and starter
PTC thermistor input support for motor thermal feedback
Multiple discrete logic inputs
Configurable discrete relay/logic outputs
Analog output: 0–20 mA or 4–20 mA
Communication Interface: RS485 with Modbus; optional network modules
Physical & Environment
Protection Degree: IP00
Dimensions (approx.): 320 mm (W) × 380 mm (H) × 265 mm (D)
Weight: ~18.2 kg
Operating Temperature: −10 °C to +40 °C (derating above 40 °C)
Standards & Certification
Complies with IEC/EN 60947‑4‑2
Certified CE, UL, CSA, DNV, CCC, and other applicable standards
Summary of Key Parameters
Parameter Specification
Model ATS48C25Q
Series Altistart 48
Rated Current 250 A
Supply Voltage 230–415 V AC, 50/60 Hz
Motor Power (typical) Up to 132 kW (standard application @ 400 V)
Control Type Torque controlled soft start / stop
Protection Type Phase failure, thermal, motor protection
Communication RS485 Modbus (optional network modules)
Dimensions ~320 × 380 × 265 mm
Weight ~18.2 kg
Standards IEC/EN 60947‑4‑2