Technical Specifications General Product Type: Soft Starter for asynchronous motors Series: Altistart 48 Model: ATS48C21Q Device Short Name: ATS48 Utilisation Category: AC‑53A Application: Heavy-duty industry, pump and fan drives Control Type: Torque-controlled soft start/stop with 6 thyristors (three-phase) Electrical Ratings Rated Operational Current (Ie): 210 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 (supply line): up to 110 kW @ 400 V Severe application: up to 90 kW @ 400 V Delta connection (optional): up to 180 kW standard / 140 kW severe Protection & Control Features Torque Control System (TCS) for smooth acceleration and deceleration Phase failure and thermal protection PTC thermistor input support for motor thermal monitoring Multiple discrete inputs for control signals Configurable discrete outputs (relays/logic) Analog output: 0–20 mA or 4–20 mA Communication Interface: RS485 Modbus; optional network modules for industrial protocols Physical & Environment Protection Degree: IP00 (internal) Dimensions (approx.): 320 mm (W) × 380 mm (H) × 265 mm (D) Weight: ~18 kg Operating Temperature: −10 °C to +40 °C (with 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 ATS48C21Q Series Altistart 48 Rated Current 210 A Supply Voltage 230–415 V AC, 50/60 Hz Motor Power (typical) Up to 110 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 kg Standards IEC/EN 60947‑4‑2