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F-EFD100 Residual Current Monitor
The F-EFD100 Residual Current Monitor is designed as an independent smart detector, applied to the electrical fire monitoring system to achieve real-time monitoring, alarm and protection of residual current and temperature. Sound and light alarm and fire linkage can be carried out to eliminate the potential danger of electrical fire. It can also upload the data to the superior fire monitoring system through the RS485 network to comprehensive analysis and process the data. The product provides multi-channel signal monitoring, which can be combined with 3-channel residual current input and 1-channel temperature input to adapt to various field applications. The product is compact in size, easy to install, comprehensive in function and cost-effective, save a lot of investment and space for users.
The performance of F-EFD200 conforms to China national standards: GB14287.2-2014, electrical fire monitoring system part 2: residual electrical fire monitoring detector, and GB14287.3-2014, electrical fire monitoring system part 3: temperature measurement electrical fire monitoring detector.
This product has been widely used in power system, environmental monitoring, industrial automation, building automation, medium-low voltage power distribution automation and other areas.
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  Industrial-grade Design
Using high-performance industrial-grade wireless modules
Using high performance industrial grade 32-bit enhanced processor
Built-in real time clock (RTC)
ABS flame retardant housing
Wide power input (AC 187~242V)

Powerful Functions
Provide 3-way of leakage input, 1-way temperature input, 1-way CAN bus, 1-way RS485
Support for mass storage expansion
Interactive management: platform remote management

Stable & Reliable
WDT watchdog to ensure system stability
Input power supply with overcurrent protection and overvoltage protection

Standard Interface & Easy-to-Use
Using industrial interface, especially suitable for industrial field applications
Provide CAN bus and RS485 interface to communicate directly with the supporting monitor
Support serial software upgrade and remote maintenance

Follow the Standard
Electrostatic Discharge Immunity. It complies with the provisions of GB/T 17626.2-2006 (IEC 61000-4-2:2001), and the severity level is 3.

RF electromagnetic field radiation immunity. It meets the requirements of GB/T 17626.3-2016 (IEC 61000-4-3: 2006), and the severity level is 3.

Fast Transient Burst Immunity. It complies with the provisions of GB/T 17626.4-2008 (IEC 61000-4-4:2004), and the severity level is 3.

Surge Immunity. It meets the requirements of GB/T 17626.5-2008 (IEC 61000-4-5:2005), and the severity level is 3.

RF Conducted Immunity. It meets the requirements of GB/T 17626.6-2008 (IEC 61000-4-6:2006), and the severity level is 3.

Rupture Frequency Magnetic Field Immunity. It complies with the provisions of GB/T 17626.8-2006 (IEC 61000-4-8:2001), and the severity level is 4.

Voltage Sag, Short-term Interruption and Voltage Variation Immunity. Meets the requirements of GB/T 17626.11-2008 (IEC 61000-4-11:2004), Category 3 standards.

Product Features 
Real-time Monitoring
F-EFD100 combined electrical fire monitoring detector can simultaneously monitor 3-branch residual currents and 1-branch temperature and display the current value in real time.

Alarm Protection
F-EFD100 combined electrical fire monitoring detector will emit an acousto-optic signal alarm when the residual current value of the power circuit exceeds the limit, and upload it to the supporting monitoring equipment by wired or wireless communication.

Fault Reminder Function
When the equipment is running faulty, the system self-tests, and through the acousto-optic alarm prompts, enable operators to detect abnormal conditions of equipment operation in time to avoid unnecessary failures.

Communication Function
The detection detector comes with a variety of communication functions, and can be connected to the monitoring equipment host of our company to remote management, maintenance, control and system upgrade. 
Residual Current Monitor Typical Application



Standard and Band B1: 2100MHz
B3: 1800MHz
B5: 850MHz
B8: 900MHz
B20: 800MHz
Bandwidth 100bps~100Kbps
TX Power 23dBm±2dB(Max)
RX Sensitivity -129dBm
Standard and Band 433MHz
Communication Bandwidth 6 level adjustable(0.3、0.6、1.0、1.8、3.1、5.5Kbps)
Communication Distance Indoor/urban communication distance: 1km
Outdoor/line-of-sight communication distance: 3.5km
Transmit Power 20dBm(100mW)
RX Sensitivity -140dBm


Hardware System
CPU Industrial Grade 32-Bit Enhancement Processor


Interface Type
Communication RS385 1 RS485 interface, the serial parameters are as follows:
Data bits: 8 bits, stop bits: 1, 2 bits
Calibration: no parity, even parity, odd parity
Serial Port Rate:1200~38400bits/s
Serial speed: 1200~38400bits/s
Can Bus The device has 1 CAN bus interface, CAN bus communication is stable and reliable, and can communicate with other external devices to achieve various networking needs.
Human Interface LCD 128*128 LCD screen, rich display content
Indicator "Online" "Communication" "warning" "Alarm" "Mute" 
Buzzer Fault alarm, detecting abnormal alarm
Button  “confirm/reset” “add/mute” “decrease” “confirm” “return” “self-test” 6 buttons, simple and fast operating system
Application Interface Residual Current 3-branch residual current transformer, alarm value setting range: 40~1000mA
Temperature 1-branch temperature probe, measuring range: 0 °C ~ 150 °C, alarm value setting range 45 ~ 140 °C
Power Interface Adopt strong electric anti-tripping interface, over current protection ≥120% and overvoltage protection, recoverable
Note: There may be differences between different types of accessories and interfaces, which are subject to the actual product.


Power Input
Standard Power AC 220V 50Hz
Power Range AC187~242V


Average Consumption <0.8W
Maximum Dynamic Consumption <1.5W


Physical Characteristics
Housing ABS flame retardant material, housing and system are safely isolated, especially suitable for power field applications
Dimensions 98x98x83.57 mm (excluding antenna and mounting parts )
Weight About 535g (including mounting parts and packaging)


Environmental Limits
Operating Temperature -10~+40ºC 
Storage Temperature -30~+80ºC 
Relative Humidity 5%~95% (no condensation)


Appendix A

A.1 Structure
Shape and installation dimensions, sliding mounting brackets on both sides of the device for quick installation. See the figure below for specific dimensions. (Unit: mm)


A.2 wiring ports (15PIN pitch 3.81mm, 3PIN pitch 5.08mm) Upper row terminal specification: 15PIN pitch 3.81mm
Upper row ports specification: 15PIN pitch 3.81mm
Lower row ports specification: 3PIN pitch 5.08mm


CANL CANH GND Txd/A+ Rxd/B- Backup Leakage 3 COM Leakage 2 COM Leakage 1 COM NTC COM
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Upper Row

SIM N/- L/+
0 0 0 0 1 2 3
Lower Row


Figure 3   Interface Diagram

Interface Signal Definition
Number Interface Definition Description
4 Txd/A+ RS485:A+
5 Rxd/B- RS485:B-
6 Backup Reserved Port
8 Leakage 3 Residual Current Input 3
10 Leakage 2 Residual Current Input 2
11 COM
12 Leakage 1 Residual Current Input 1
13 COM
14 Temperature Temperature Sensor Input
15 COM


Environmental Limits
Number Interface Definition Description
0-0-0-0 SIM Card SIM Card Ports
1 PG Reserved Ports
2 M AC220V Input Null Line
3 L AC220V Input Live Line



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