Parameters: Model Number: ABB E1B800 R800 PR121/P-LSI WHR 3P Rated Voltage: 400 V AC (Three-phase) Rated Current: 800 A (adjustable) Frequency: 50/60 Hz Protection Type: Long-Time Protection (L): Adjustable from 0.7 to 1.0 times rated current for overload protection, preventing damage from sustained overcurrents. Short-Time Protection (S): Adjustable from 3 to 10 times rated current with a time delay to provide protection against short-circuit conditions. Instantaneous Protection (I): Offers instantaneous disconnection for severe short-circuit conditions, protecting the system from high fault currents. Ground Fault Protection (G): Ground fault protection (LSI) detects leakage currents and isolates the faulty section, preventing hazards and ensuring safety. Thermal Overload Protection: Monitors the system’s temperature to protect equipment from overheating during prolonged overload conditions. Wide High Resistance (WHR): Designed for motor-driven systems, this feature helps protect against high inrush currents and fluctuating load conditions, which are typical in motors during startup or load changes. Breaking Capacity (Icu): 65 kA at 400 V, ensuring that high fault currents are safely interrupted without damaging the system. Mounting Type: DIN rail or panel mount for easy installation into motor control centers (MCCs), distribution panels, and electrical control systems. Degree of Protection: IP20 (suitable for indoor applications; external protection kits can be added for harsh environments). Weight: Approx. 30–40 kg (depending on configuration). Dimensions (H x W x D): Approx. 600 x 400 x 250 mm (subject to configuration). Control Voltage: 24 V DC (external supply required for control and communication features). Communication Protocols: Modbus RTU, Profibus, and Ethernet for remote monitoring, diagnostics, and integration with PLC or SCADA systems. Auxiliary Contacts (Optional): Available for integration into control systems for signaling faults and providing system status updates.