The YCQ9Ms Series is a high-performance automatic transfer switch (ATS) designed for AC power systems operating at 50/60Hz, with a rated voltage of 400V and current capacity up to 800A. It enables seamless switching between two power sources based on system conditions or user-defined requirements. In the event of overvoltage, undervoltage, or phase loss, the switch automatically transfers to the backup source or activates a generator. Equipped with a built-in RS485 communication interface and MODBUS-RTU protocol, it supports real-time data upload, remote configuration, status monitoring, and telemetry control. Widely used in hospitals, shopping malls, banks, hotels, high-rise buildings, and fire protection systems, it ensures uninterrupted power supply in critical environments.
TECHNICAL DETAILS:
| Attribute | Specification |
| Series | YCQ9Ms |
| Type | Dual Power Automatic Transfer Switch |
| Rated Working Voltage | AC 400V |
| Rated Working Current | ≤800A |
| Frequency | 50/60Hz |
| Switching Logic | Automatic (based on voltage/fault status) |
| Communication Interface | RS485 |
| Protocol | MODBUS-RTU |
| Remote Functions | Monitoring, telemetry, control, adjustment |
| Operating Temperature | -5°C to +40°C |
| Installation Altitude | ≤2000m |
| Humidity at 40°C | ≤50% RH |
| Humidity at 20°C | ≤90% RH |
| Standard | IEC 60947-6-1 |
| Application | Hospitals, malls, banks, hotels, fire systems |
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