Schneider WATSN100/4A: Type: Molded Case Circuit Breaker (MCCB) with earth leakage protection Rated Current (In): 100A Poles: 4P (Four-Phase: Three-Phase + Neutral) Voltage Rating: Nominal Voltage: 400V AC (Three-Phase with Neutral) Rated Voltage Range: 380V to 415V AC Breaking Capacity (Icu): Icu (Ultimate Breaking Capacity): 25 kA (at 400V AC) Protection Features: Overload Protection: Thermal overload protection to prevent damage from prolonged overload conditions. Adjustable thermal trip setting from 0.7 to 1.1 times the rated current (In). Short-circuit Protection: Magnetic short-circuit protection to rapidly disconnect the circuit in case of a short-circuit fault. Fixed trip setting for quick response to high fault currents. Residual Current Protection (RCCB Function): Earth leakage protection with adjustable sensitivity (30mA, 100mA, etc.) for preventing electric shock hazards. Offers protection against leakage currents to earth, improving safety in the system. Earth Fault Protection: Can be configured for earth fault protection in addition to overload and short-circuit protection. Adjustable Trip Settings: Overload and short-circuit trip settings can be adjusted for specific applications, ensuring optimal protection for different loads. Certifications: IEC 60947-2 certified (for MCCBs) IEC 61008 certified (for RCCB functionality) CE certified for compliance with European standards UL listed for use in North America Mounting: DIN Rail Mounted for easy installation in electrical panels, motor control centers (MCCs), and distribution boards. Auxiliary Features: Optional auxiliary contacts for status monitoring and control Optional shunt trip and undervoltage release for additional remote control and protection. Applications: Motor Protection: Protects motors from overload, short-circuit, and earth leakage in industrial, commercial, and residential environments. General Electrical Protection: Ideal for distribution systems and protection of electrical circuits against faults and leakage in residential, commercial, and industrial installations. Solar Power Systems: Provides reliable protection for DC and AC circuits in photovoltaic systems (for protecting equipment from leakage currents and electrical faults). Control Panels and Distribution Boards: Suitable for use in electrical control panels and distribution boards where a high level of protection is required for sensitive equipment.