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SACE PR122/P-LSI

The ABB SACE PR122/P-LSI is an automatic circuit breaker that offers advanced features such as long-time protection (LSI), short-time protection (STI), and instantaneous protection (I) for low-voltage electrical networks. The device is designed to provide selective protection for circuits, helping to isolate faulty sections of the system, thus ensuring the continuity of operation for healthy parts of the installation.

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Parameters: Model Number: ABB SACE PR122/P-LSI Rated Voltage: 400 V AC (Three-phase) Rated Current: 800 A, adjustable from 320 A to 800 A Frequency: 50/60 Hz Breaking Capacity (Icu): 50 kA at 400 V Protection Type: Long-Time Protection (LSI): Adjustable time delay to protect against prolonged overcurrents. Short-Time Protection (STI): Adjustable short-circuit protection with a time delay to avoid nuisance trips while ensuring protection against short circuits. Instantaneous Protection (I): Instantaneous tripping for severe short-circuit conditions, ensuring fast isolation of faults. Settings Range: Long-Time Protection (L): Adjustable from 0.7 to 1.0 times the rated current. Short-Time Protection (S): Adjustable between 3 to 10 times the rated current, with an adjustable delay. Instantaneous Protection (I): Instantaneous tripping for faults above the short-circuit threshold. Overload Protection: Provides reliable protection against motor overloads, preventing long-duration overcurrent conditions from damaging the equipment. Trip Unit: Digital microprocessor-based trip unit for accurate protection and control. Degree of Protection: IP20 (for indoor use) Mounting Type: DIN rail mount or panel mount Communication Options: Modbus RTU for remote monitoring and integration with PLC or SCADA systems Weight: Approx. 11 kg (depending on configuration) Dimensions (H x W x D): Approx. 450 x 250 x 200 mm (varies by configuration)