Description: Model: WTS250/4DL250A Type: Motor Protection Switch / Circuit Breaker Poles: 4P (Four-pole, for three-phase systems with neutral) Rated Current: 250 A Rated Voltage: 400 V AC Application: The WTS250/4DL250A is ideal for protecting three-phase motors and other high-power equipment in industrial, commercial, and residential installations. It offers protection for motor-driven systems, ensuring that overload, short-circuit, and phase failure conditions are detected, and disconnection occurs to prevent damage to electrical components. This switch can be integrated into distribution panels, motor starters, and control panels. Mounting: DIN rail mounted Standards Compliance: IEC 60947-2, UL 489, CE marking Parameters: Rated Current (In): 250 A Number of Poles: 4P (Three-phase + neutral protection) Rated Voltage (Ue): 400 V AC Suitable for three-phase systems with a neutral conductor. Rated Breaking Capacity (Icu): 50 kA (at 400 V AC) – Can safely interrupt fault currents up to 50,000 A. Tripping Characteristics: Adjustable thermal-magnetic protection Overload Protection: Adjustable from 1.0 to 1.25 times rated current to protect against prolonged overcurrent conditions. Short-circuit Protection: Instantaneous trip to protect against short-circuit conditions. Phase Loss Protection: Detects and disconnects if there is a phase failure or unbalance. Frequency Range: 50/60 Hz Temperature Range: -5°C to +40°C Mounting Method: DIN rail mounted for easy integration into distribution boards and control panels Connection Type: Screw terminals for secure and reliable wiring Mechanical Durability: 10,000 operations Electrical Durability: 10,000 operations Rated Insulation Voltage (Ui): 690 V Rated Impulse Withstand Voltage (Uimp): 8 kV