LCD Display Voltage Relay Phase Failure Phase Sequence Protection Relay

Product Description

Operating Instructions for ZHRV2-S Digital voltage monitoring relay
Applications
Used in air conditioning units, elevator machine room, pumps, fans and other motor control applications, as protection of over-voltage. Under-voltage, phase failure, phase sequence and phase unbalance. When the power supply is abnormal, turn off power supply to protect the equipment.

Features:
Built-in microprocessors, true RMS voltage measurement, voltage measurement accuracy ≤1%.Measuring frequency 45Hz~64Hz,button setting, LCD display voltage and fault information, protection can be turned on or off. Check phase voltage value by button, with N-phase phase failure protection, DIN rail mounting.

Model Description
Function Setting Table

Parameters	Setting range	Step amount	Factory setting	Remarks
Over-voltage action value	OFF-381V~500V	1V	437V	M415
	OFF-221V~300V	1V	253V	M240
Over-voltage delay	0.1~20S	0.1s	2s
Under-voltage action value	260V~379V-OFF	1V	323V	M415
	150V~219V-OFF	1V	187V	M240
Under-voltage delay	0.1~20s	0.1s	2s
Unbalance rate	OFF-5%~20%	1%	8%
Asymmetry Delay time	0.1~20s	0.1s	2s
Phase sequence protection	ON-OFF		ON
Start/reset delay	0.3~30S	0.1s	0.3s
Automatic reset	ON-OFF		ON

Note: "ON" is protection available, "OFF" is protection unavailable.

Technical Parameters

Rated supply voltage	M415(3-phase 3-wire)AC200V~500V M240(3-phase 4-wire)AC125V~300V
Rated supply frequency	50Hz/60Hz
Voltage measurement error	≤1% (Entire setting range)
Delay error	±10%+0.1s
Measurement accuracy	1%, RMS
Phase failure and phase sequence	≤0.2s
Rated insulation voltage	415V
Contact configuration capacity(A)	10A
IP Class	IP20
Class of pollution	3
Electrical Life	105
Mechanical life	106
Altitude	≤2000m
Allowable relative humidity	≤50%(40ºC)(No condensation)
Use category	AC-15
Short circuit protector type	RT36-00 5A
Contact capacity	Ue/le:240V/1.5A,415V/0.95A
Output type	1C/O
DIN rail Standard	Width 35mm(IEC/EN60715)

Function diagram

Dimensions (mm)

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