Parameters:
Model Number: ABB E1N800 R400/630/800 3/4P
Rated Voltage: AC 690 V (for three-phase systems)
Rated Current: 400A, 630A, 800A (adjustable depending on the configuration)
Rated Frequency: 50/60 Hz
Number of Poles: 3P (three-pole) or 4P (four-pole)
Protection Type:
Long-Time Protection (L): Adjustable from 0.7 to 1.0 times rated current, offering protection against overload by monitoring prolonged overcurrent conditions.
Short-Time Protection (S): Adjustable from 3 to 10 times rated current, with a time delay, providing protection from short-circuit faults while allowing motor startup.
Instantaneous Protection (I): Provides instantaneous disconnection in case of severe short-circuit conditions, ensuring immediate protection from high fault currents.
Ground Fault Protection (G): Ground fault protection (LSI) detects leakage currents, providing early warning and isolating the faulty section to prevent electrical hazards.
Thermal Overload Protection: Continuously monitors the system's temperature, offering protection against sustained overload conditions that could cause overheating.
Breaking Capacity (Icu): 50 kA at 400V, ensuring that the breaker can safely interrupt high fault currents without damage to the system.
Mounting Type: DIN rail mountable or panel mountable for easy integration into motor control centers (MCCs), distribution panels, and electrical control systems.
Protection Class: IP20 (for indoor use; additional external kits are available for more demanding environments).
Weight: Approx. 10–20 kg, depending on the rated current and configuration.
Dimensions (H x W x D): Approx. 300 x 200 x 180 mm (varies depending on rated current configuration).
Control Voltage: 24 V DC (or 48 V DC depending on configuration) for remote control and monitoring features.
Communication Protocols: Supports Modbus RTU, Profibus, and Ethernet communication for remote diagnostics and integration with PLC or SCADA systems.
Auxiliary Contacts (Optional): Available for fault signaling, system status updates, and integration with automation control systems.
The ABB E1N800 R400/630/800 3/4P is a motor protection circuit breaker (MPCB) designed for low-voltage protection in industrial electrical systems. This model belongs to the E1N series of circuit breakers, offering comprehensive overload, short-circuit, and ground fault protection for motor-driven systems, transformers, generators, and other critical electrical equipment. The E1N800 is available in a range of current ratings (from 400A to 800A) and can be used in three-pole (3P) or four-pole (4P) configurations, making it suitable for a variety of industrial applications.