Part

FG-R05-3A

ESA8111-179

page

2/11

4/6/2020

1. Scope

This datasheet applies to the specification of Residual current sensor FG-R05-3A

2. Introduction

This sensor FG-R05-3A is a high-sensitivity DC/AC current sensor that can detect leakage current of DC and

AC. If DC fault occurs, PIN 4 will change state from low level to high impedance. If AC fault occurs, PIN5 will

change state form low level to high impedance.

This sensor has a test coil for testing the operation of the sensor, and by inputting a signal from the outside it

is possible to pass a test current to the test coil. It also outputs a digital signal informing that leakage current of

DC/AC has been detected.

Features

⚫

For IC-CPD to the standard IEC 62752:2016

⚫

UL2231(CCID20)

⚫

Open-loop, Flux-gate type current sensor

⚫

PCB mounting

⚫

Digital output of fault detection

3. Pin assignment

4. Marking

Pin No.

Symbol

Pin type

Functions

1

VDD

Power

Power supply, 5V

2

GND

Power

Ground

3

AOUT

Analog out.

Analog output.

This is for monitoring purposes and is not safety function!

Offset voltage is 2.25 V(Typ.).

Sensitivity is 40V/A(Typ.)

4

DC Alarm

Digital Out

Active high if DC current is in the range of 3 to 6mA.

Pull up to VDD with 1k-ohm resistor.

5

AC Alarm

Digital Out

Active high if AC current is in the range of 15 to 20mA.

Pull up to VDD with 1k-ohm resistor

IEC62752 & UL2231(CCID20)

6

TEST

Input

Test input. Internal pull-down with 100kohm.

When input positive pulse input(>120usec), test sequence is start.

Parameter

Specification

Typ.

Units

Dimension

38 x 31 x 13

mm

Inner diameter

φ12.6

mm

Mass

18

g

Marking

Part Number

Product Number

Pin1

Pin2

Pin3

Pin4

Pin5

Pin6

2D Code : Purpose for Internal manufacturing control * out of spec.