The type electrical fire monitoring detector can realize real-time monitoring and collection of the residual current and temperature value of the controlled circuit, and will send out an audible and visual fault alarm signal when the fault alarm data of the detection circuit is collected; it can also be networked with the electrical fire monitoring host, and the monitoring host can Judging the state of the on-site detectors, the host computer analyzes and processes to indicate the fault alarm type of a certain circuit, and sends out an audible and visual fault alarm signal.


1. Rated working voltage: AC220V (AC85V-260V)
2. Residual current alarm range: 50-1000mA
3. Temperature alarm range: 25-125℃
4. Protection action time: ≤0.5s

5. Alarm sound: 70db
6. Alarm output: switch type, contact capacity AC250V /3A
7. Communication method and distance: two-bus communication protocol/≤1500m
8. Protection level: IP 30
9. Executive standard: GB14287.2-2014
10. Environmental conditions for use: Ambient temperature: 0℃～＋60℃
Relative humidity: 10%～90%

1.Terminal diagram



2.Application Diagram



Note: The three-phase four-wire must pass through the transformer from the same direction

Type S Installation and Dimensions




1.Terminal diagram



2.Application Diagram

product name	product model	basic function			remarks
Electric fire monitoring and control device	CHTK888D		Function: digital display, detection of residual current,  temperature, fire input, communication, alarm, tripping, etc. A is leakage; T is temperature; K is buckle	Al/T4	90mm*55mm*44mm