The EM721FA electrical fire monitoring detector monitors the residual current in the system or branch through an external residual current transformer, and can also monitor the cable temperature or the ambient temperature inside the box through an external temperature sensor. When the monitoring value is higher than the alarm set value, the device immediately generates an alarm signal and uploads it to the monitoring equipment through the fire protection bus. EM721FA adopts an embedded hardware design architecture, with low power consumption, high intelligence, high reliability, and a Chinese large screen human-machine interface, making operation and parameter query very convenient. During operation, real-time self inspection of internal core components can be performed to ensure reliable operation. An EM721FA electrical fire monitoring detector can simultaneously measure multiple residual currents and temperatures.

The EM721FA electrical fire monitoring detector is suitable for densely populated areas such as commercial complexes, high-end communities, schools, hotels, and industrial plants, especially for distribution cabinets or boxes with multiple feeders.