Miniature circuit breaker 230/400 V 10 kA, 1-pole, C, 80 A, D=70 mm

## Product Overview The Miniature Circuit Breaker (MCB) 230/400 V, 10 kA, 1-pole, type C, rated 80 A, with a depth of 70 mm, is engineered for overcurrent protection in low-voltage distribution systems. ### Electrical Ratings and Protection Parameters - **Rated Voltage and Current:** Designed for operation at nominal voltages up to 400 V AC, the device sustains continuous currents at 80 A without derating. - **Short-Circuit Breaking Capacity:** Rated to interrupt fault currents up to 10 kA at both 230 V and 400 V per EN 60898 compliance, ensuring discrimination under fault conditions. - **Insulation and Impulse Withstand Voltage:** Provides rated insulation voltage (Ui) of 440 V, suitable for typical industrial environments; impulse withstand voltage parameters are unlisted, necessitating caution in transient-prone installations. ### Mechanical and Installation Features - **Pole Configuration and Dimensions:** Single-pole configuration with a total width of 1.5 modular units and a built-in depth of 70 mm facilitates integration into compact panel layouts without flush-mount capability. - **Degree of Protection and Pollution Resistance:** IP20 rating restricts ingress of solid objects exceeding 12 mm, requiring installation in controlled environments; pollution degree 3 classification implies suitability for industrial conditions with conductive pollution. ### Conductivity and Environmental Conditions - **Conductor Compatibility:** Terminal design accommodates solid and stranded conductors ranging from 25 to 50 mm², enabling flexible wiring configurations for substantial current-carrying requirements. - **Ambient and Operational Constraints:** Operating ambient temperature and frequency specifications are undefined, demanding adherence to standardized environmental norms for circuit breaker reliability. ### Additional Technical Aspects - **Neutral Conductor Switching:** Absence of neutral pole switching limits application in systems requiring simultaneous disconnection of neutral lines. - **Overvoltage Category:** Classified under category III, confirming resilience against voltage transients typical in fixed installations downstream of the main distribution. - **Auxiliary and Expandability Options:** Provision exists for ancillary equipment integration, enabling customization for monitoring or control functions within electrical distribution systems. This MCB constitutes a performance-driven solution for circuit protection, optimized for industrial electrical distribution with emphasis on rated short-circuit capacity and mechanical compactness.