1-phase Current Monitoring Relay, 2-20A, 2×SPDT, AC/DC24V-240V

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$70.92

The 1-phase current monitoring relay has 2×SPDT. It uses a remote current sensor to convert high current into low current for suitable measurement and protection equipment and can be connected to an external current sensor to extend the monitoring current range and penetrate the secondary current. The monitoring relay can provide an ultra-wide pressure range of AC/DC24V-240V to satisfy multiple scene requirements. Uses flame-retardant materials for added safety.

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SKU: ATO-MR-GRI806

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Overview

The single-phase current monitoring relay equipped with LED lights, quickly understands the working status of the equipment. It can be used through overdrive/flow monitor mode, which is equipped to handle a wide input voltage range, accepting AC/DC 12-240V inputs. The current monitoring relay has fast operation speed, high accuracy, good maneuverability, and a current range of 2-20A, which have led to its widespread use in power systems, such as rail switches, heating cables, and consumption of one-phase motors, indicating current flow.

Feature

Through center design, no need to disconnect the current circuit, throughcenter installation is convenient to use.
Cover/Under current monitoring mode can be set by knob.
With AC and DC universal testing specifications optional.
An isolation current transformer is adopted, and external current transformers can be connected to expand the monitoring current range.
2 C/O output.
Universal supply AC/DC 24-240 V.
Relay status is indicated by LED.
1-MODULE, DIN rail mounting.

Model and Connotation

1 phase current monitoring relay model and connotation

Technical Parameters

Model	ATO-GRI8-06A	ATO-GRI8-06B
Function	AC measurement	AC/DC measurement
Supply Terminals	A1-A2
Rated Supply Voltage	AC/DC 24-240V
Rated Supply Frequency	50/60Hz,0
Burden	Max 25VA
Supply Voltage Tolerance	-15%;+10%
Current Range	2A-20A
Current Frequency	AC 50Hz	AC 50Hz , DC
Setting Method	Potentiometer
Supply Indication	Green LED
Setting Accuracy	10%
Hysteresis	5%
Output	2×SPDT
Current Rating	8A/AC1
Switching Voltage	250VAC/24VDc
Min. breaking Capacity DC	500mW
Output Indication	Red LED
Mechanical Life	1×10⁷
Electrical Life (AC1)	1×10⁵
Operating Temperature	-20°℃ ~+55°℃
Storage Temperature	-35℃~+75°℃
Mounting/ DlN Rail	Din rail EN/ IEC 60715
Protection Degree	IP20
Operating Position	Any
Overvoltage Cathegory	III.
Pollution Degree	2
Max. cable Size (mm²)	1×2.5mm or 2×1.5mm 0.4·Nm
Dimensions	90mm×36mm×64mm
Weight	90g
Standards	EN 60255-1

Functions Diagram

1 phase current monitoring relay functions

Tr: Power-up delay.
Tt: Tripping delay.

Wiring Diagram

Monitored Current ≤ 20A

1 phase current monitoring relay wiring2

Monitored Current > 20A, Through CT Transformation

1 phase current monitoring relay wiring3

Panel Diagram

1 phase current monitoring relay panel

Dimensions (mm)

1 phase current monitoring relay dimensionsa

1 phase current monitoring relay dimensionsb

Tips: The working principle of a single-phase current monitoring relay

The working principle of a 1-phase current monitoring relay and the principles of electromagnetics and electromagnetic sensing. When an electric current occurs in this line, a constant electromagnetic wave is generated, producing an electric current. This sensitive electric current influences the magnetic field in the sphere and then influences the state of the contact point. Through the parameters of the rational design, precise control of the current control device can be realized. For example, by changing the number of circles, material, length, etc.

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