Product model: CHTK888DDS
Rated operating current IN (A): 16A~1600A
Rated working voltage UE (V): AC220V
Residual current warning and alarm value: 20mA~1000mA can be set arbitrarily
Three-phase current warning and alarm value: no
Temperature warning and alarm value: 20°C~150°C can be set arbitrarily
Number of leakage circuits: 1~16 circuits
Number of temperature loops: 1~8 loops
Alarm protection: protection or no protection can be set
Protection action: ≤0.5S
Alarm output: dry contact capacity AC220V/5A
Trip output: dry contact capacity AC220V/5A
Trip channel: 1~8 channels
Display mode: digital digital display
Fire linkage: DC24V
Communication method: CNA bus (≤10KM)
Alarm sound: ≤70dB
Ambient temperature: -20℃~+40℃
Altitude: no more than 3000M
Executive standard: GB142872-2005
GB14287.3-2005


The 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 judge The state of the on-site detector, the host computer analyzes and processes to indicate the type of a circuit fault alarm, and sends out an audible and visual fault alarm signal.

The main technical parameters
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 [different product specifications, the function of the terminal may be reduced]

2.Application Diagram


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

1.Terminal diagram [different product specifications, the function of the terminal may be reduced]


 2.Application Diagram


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

product name	product model	basic function			remarks
Combined fire monitor	CHTK888DDS		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	155mm*l10mm*65mm
				A4/T4
				A8/T4
				A4/T4/K4
				A8/T4/K8
	CHTK888DDY		Function: LCD display, detect residual current, temperature fire input, communication alarm, tripping, etc. A is leakage; T is temperature; k is buckle	Al/T4	179mm*l 00mm*77mm
				A4/T4
				A8/T4
				A16/T4
				A4/T4/K4
				A8/T4/K8
				Al6/T4/Kl