

What is the function of the SMG-WL1SR Smart Gateway?
It acts as a communication bridge between CHINT smart miniature circuit breakers and external systems, providing data transmission, protocol conversion, and remote control via Wi-Fi, 4G, or RS485.
How is the SMG-WL1SR installed?
The gateway features a compact modular design that mounts directly on a TH35-7.5 DIN rail, aligning with standard breaker installations for easy integration into control cabinets.
What communication methods does it support?
It supports Wi-Fi, 4G, and RS485 communication and uses Modbus-RTU and MQTT protocols for compatibility with CHINT cloud platforms and third-party monitoring systems.
How is the SMG-WL1SR configured?
Configuration is simplified through Bluetooth pairing with the WeChat Mini Program, enabling fast parameter setup and mode conversion without requiring specialized tools.
What environments can the SMG-WL1SR operate in?
It’s rated for −25°C to +70°C, ensuring reliable performance in both industrial and commercial power monitoring systems up to 2000m altitude.