EKR8-7 Single Phase Voltage Monitoring Protection Relay Adjustable Over or Under Voltage

Voltage protection relay uses a high-speed and low power processor as its core. When the power supply line has over-voltage, under-voltage, or phase failure, phase reverse, the relay will cut off the circuit quickly and safely to avoid accidents caused by abnormal voltage being sent to the terminal appliance.

Porduct Overview

Single Phase Voltage Monitoring Relays are designed for protection of single-phase load against un-allowable voltage variations in the mains. They have a wide range of adjustments, including power on time delay for protection of refrigerating, compressor and air-conditioning equipment.

1. Cut off the line when Over & Under Voltage occurs, and automatically reset and connect the line after

returning to normal without manual operation.

2. When the line appears transient or transient Over& Under Voltage, the protector does not malfunction.

Technical parameters

Technical Data

Technical Data
	EKR8-7011	EKR8-7211	EKR8-7311
Monitoring Type	Single Phase
Output Characteristics	SPDT
Over Voltage	15%	0~20%	0~20%
Under Voltage	15%	0~20%	0~20%
Time Delay	3S	3S	0.1-10S
Working Voltage	AC110V or 220V
Frequency	50/60Hz
Response Time of Relay	0.5S
Contact Rating	AC-15:3A/250VAC
Ambient Temperature	-10°C~+55°C
Voltage Error	⼟2% Max
Temperature Error	⼠2% Max

Dimensions

Dimension

Wring Diagram

Product selection form

EKR8-7011110	Voltage Protection Relay 0 knob SPDT single phase 110VAC
EKR8-7011220	Voltage Protection Relay 0 knob SPDT single phase 220VAC
EKR8-7011380	Voltage Protection Relay 0 knob SPDT single phase 380VAC
EKR8-7011400	Voltage Protection Relay 0 knob SPDT single phase 400VAC
EKR8-7011415	Voltage Protection Relay 0 knob SPDT single phase 415VAC
EKR8-7011440	Voltage Protection Relay 0 knob SPDT single phase 440VAC
EKR8-7211110	Voltage Protection Relay 2 knob SPDT single phase 110VAC
EKR8-7211220	Voltage Protection Relay 2 knob SPDT single phase 220VAC
EKR8-7211380	Voltage Protection Relay 2 knob SPDT single phase 380VAC
EKR8-7211400	Voltage Protection Relay 2 knob SPDT single phase 400VAC
EKR8-7211415	Voltage Protection Relay 2 knob SPDT single phase 415VAC
EKR8-7211440	Voltage Protection Relay 2 knob SPDT single phase 440VAC
EKR8-7311110	Voltage Protection Relay 3 knob SPDT single phase 110VAC
EKR8-7311220	Voltage Protection Relay 3 knob SPDT single phase 220VAC
EKR8-7311380	Voltage Protection Relay 3 knob SPDT single phase 380VAC
EKR8-7311400	Voltage Protection Relay 3 knob SPDT single phase 400VAC
EKR8-7311415	Voltage Protection Relay 3 knob SPDT single phase 415VAC
EKR8-7311440	Voltage Protection Relay 3 knob SPDT single phase 440VAC

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