The basic function of this device uses single-chip control, a new multi-functional system based on the current medium voltage switchgear technology development and design, and intelligent simulation of dynamic indicator. It combines an analog circuit diagram, circuit breaker status combined points, Used tests and work position indicator, grounding switch position, the spring energy state, high-pressure live instruction and atresia, temperature and humidity control, six-channel temperature and over-voltage protection count LCD , RS485 communication functions into one, the product is an integrated layout supporting equipment in the switch cabinet, will simplify the design of the switchgear panel structure, landscaping switchgear panel layout, improve safety performance indicator and switch states. Scope This means for households within 3 ~ 35KV switchgear for the center cabinet, cabinet trolley, fixed cabinets, RMU and other switchgear. Technical Specifications Ambient temperature: -20 ℃ ~ 65 ℃ Relative humidity: ≤95% RH Dielectric Strength: ≥AC2000V insulation: ≥100MΩ anti-electromagnetic interference function: meet the standard requirements IEC255-22 working power: AC / DC220V