Primary and secondary deep integration intelligent pole-mounted circuit breaker, with sealed pole built-in current sensor, dual voltage sensors on input and output sides, zero-sequence current and voltage sensors, built-in capacitive voltage divider energy storage electronic PT; circuit breaker inherent trip time ≤20ms, spring operating mechanism achieves rapid trip; circuit breaker whole unit IP67, thoroughly solving mechanism jamming issues caused by external environment; pole shell made of silicone rubber material, anti-aging, high hydrophobicity, impact resistant; external integrated silver-plated isolation switch with interlock to prevent misoperation; intelligent control system integrates advanced sensing technology and microprocessor, realizing real-time monitoring and precise control of electrical parameters such as current and voltage, supports remote communication functions, facilitating remote monitoring of device status by operation and maintenance personnel, timely response to fault warnings, greatly improving operation efficiency and system reliability. In addition, this circuit breaker also has excellent insulation performance and weather resistance, adapting to complex and variable outdoor environmental conditions, ensuring long-term stable operation, and is one of the indispensable key devices in modern smart grid construction.