Parameters:
Model Number: ABB SACE PR122/P-LI
Rated Voltage: AC 690 V (for three-phase systems, common in industrial setups)
Rated Current: 50 A to 2500 A (depending on model and configuration)
Frequency: 50/60 Hz
Protection Type:
Long-Time Protection (L): Adjustable settings, typically ranging from 0.7 to 1.0 times rated current, providing overload protection to safeguard against sustained overcurrent conditions.
Short-Time Protection (S): Adjustable from 3 to 10 times rated current with time delay, protecting against short-circuit faults while allowing for motor startup.
Instantaneous Protection (I): Provides instantaneous disconnection in case of severe short-circuit conditions, ensuring the system is protected from high fault currents immediately.
Ground Fault Protection (G): Ground fault protection detects any leakage current and isolates the faulty section, enhancing safety by preventing electrical shock and equipment damage.
Thermal Overload Protection: Ensures protection against overheating due to prolonged overload conditions by monitoring the temperature of the system.
Breaking Capacity (Icu): 50 kA at 400V, ensuring safe interruption of high fault currents without damaging the system.
Mounting Type: DIN rail or panel mountable for integration into motor control centers (MCCs), distribution panels, and electrical control systems.
Protection Class: IP20 (suitable for indoor environments; external protection kits available for more demanding environments).
Weight: Approx. 10–15 kg, depending on the rated current and configuration.
Dimensions (H x W x D): Approx. 300 x 200 x 150 mm (varies with configuration).
Control Voltage: Typically 24 V DC or 48 V DC, but depends on model and configuration.
Communication Protocols: Can be equipped with communication modules for integration with systems using Modbus RTU, Profibus, or Ethernet for remote monitoring, diagnostics, and control.
The ABB SACE PR122/P-LI is a high-performance circuit breaker from the SACE series, designed for industrial applications requiring reliable protection of low-voltage electrical circuits, including motors, transformers, and other critical equipment. This model is part of the PR series, offering advanced selective protection for electrical installations. The PR122/P-LI features enhanced overload, short-circuit, and ground fault protection to ensure the safe and efficient operation of electrical systems.