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SACE PR121/P-LSIG

The ABB SACE PR121/P-LSIG is a modular circuit breaker from ABB's SACE series designed for low-voltage distribution and motor protection applications. It offers advanced protection features including overload protection, short-circuit protection, and thermal protection, ensuring the safety and reliability of electrical installations. This model is particularly used for protecting motors, motor control systems, and other electrical components in industrial applications, offering adjustable settings for a variety of fault conditions.

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Parameters: Model Number: ABB SACE PR121/P-LSIG Rated Voltage: 400 V AC (Three-phase) Rated Current: 320 A to 800 A (adjustable) Frequency: 50/60 Hz Breaking Capacity (Icu): 50 kA at 400 V Protection Type: Long-Time Protection (L): Adjustable settings from 0.7 to 1.0 times the rated current to protect against prolonged overcurrents. Short-Time Protection (S): Adjustable from 3 to 10 times rated current with a time delay to prevent nuisance tripping while providing protection against short circuits. Instantaneous Protection (I): Instantaneous tripping for high fault conditions (short circuits), ensuring fast isolation of the fault. Ground Fault Protection (G): Adjustable ground fault protection to detect and isolate earth leakage currents to avoid damage to the system and prevent electric shocks. Overload Protection: Thermal overload protection for the motor or other connected load, ensuring that the equipment is not damaged by prolonged overcurrent conditions. Communication: Modbus RTU (optional) for integration with PLC/SCADA systems. Mounting Type: DIN rail mount or panel mount. Degree of Protection: IP20 (suitable for indoor use, additional protection can be added for harsh environments). Weight: Approx. 12.5 kg (depending on the specific configuration). Dimensions (H x W x D): Approx. 450 x 250 x 200 mm (subject to configuration).