Parameters: Model Number: ABB E3H2500 R2500 PR121/P-LI FHR 3P Rated Voltage: AC 690 V (for three-phase systems) Rated Current: 2500A (adjustable in different configurations) Frequency: 50/60 Hz Number of Poles: 3P (three-pole configuration) Protection Type: Long-Time Protection (L): Adjustable from 0.7 to 1.0 times rated current, providing overload protection to prevent damage from prolonged overcurrent. Short-Time Protection (S): Adjustable from 3 to 10 times rated current, with a time delay, protecting the system from short-circuit faults while allowing motor startup. Instantaneous Protection (I): Offers instantaneous disconnection during severe short-circuit conditions, ensuring protection from high fault currents. Ground Fault Protection (G): Ground fault protection (LSI) detects leakage currents, isolating the faulty section to enhance system safety. Thermal Overload Protection: Protects the system from overheating by continuously monitoring the temperature and responding to prolonged overloads. Breaking Capacity (Icu): 50 kA at 400V, providing safe interruption of high fault currents without damaging the system. Mounting Type: DIN rail mountable or panel mountable, making it easy to integrate into motor control centers (MCCs), distribution panels, and electrical control systems. Protection Class: IP20 (indoor use; additional protection kits available for more demanding environments). Weight: Approx. 30–40 kg, depending on rated current configuration. Dimensions (H x W x D): Approx. 500 x 400 x 250 mm (varies with rated current). Control Voltage: Typically 24 V DC or 48 V DC for remote control and monitoring. Communication Protocols: Supports Modbus RTU, Profibus, Ethernet, and other protocols for remote monitoring, diagnostics, and integration into PLC or SCADA systems. Auxiliary Contacts (Optional): Available for fault signaling, system status updates, and integration with control and automation systems.