Specifications General Product Type: Residual Current Circuit Breaker (RCCB) Model: iST 40R Configuration: 3P+N (three-pole + neutral) Rated Current (In): Varies based on model, typically 40A or above Mounting: DIN rail Application: Overload, short-circuit, and residual current protection for three-phase electrical circuits with neutral conductor Electrical Ratings Rated Operational Voltage (Ue): 400V AC (three-phase) Rated Insulation Voltage (Ui): 690V AC Rated Impulse Withstand Voltage (Uimp): 8kV Short-Circuit Withstand Capacity (Icu): 40kA (at 400V AC) Rated Frequency: 50/60Hz Protection & Trip Characteristics Residual Current Protection: Provides protection against earth leakage currents to prevent electric shock and other hazards Overload Protection: Thermal mechanism trips the breaker when the current exceeds the rated value over time Short-Circuit Protection: Magnetic trip mechanism ensures instantaneous tripping during short-circuit conditions to prevent damage Adjustable Settings: Some models may offer adjustments for overload protection and short-circuit protection settings. Mechanical & Environmental Degree of Protection: IP20 (front face) Housing: Modular design for easy installation in distribution panels Cable Connections: Screw terminals for secure connections Mechanical Durability: Rated for 10,000 operating cycles Operating Temperature Range: -5°C to +40°C Humidity Range: Suitable for indoor environments Pollution Degree: Suitable for use in industrial and commercial settings Accessories & Options Shunt Release: Available for remote tripping Auxiliary Contacts: For status monitoring and remote indication Undervoltage Release: For additional protection against undervoltage conditions