MK7VA Overvoltage and Undervoltage Protector

Product Details

General

Voltage and current display relay is a vmicroprocessor-based voltage monitoring device for sinale-phase AC networks to protect electrical equipment from surge voltage. The device analyzes the main voltage and displays its curent value on a digital indicator. Load is switched by electromagnetic relay. The user can set the current voltage value and delay time through the button.The value is stored in non-volatile memory. Aluminum wires and copper wires can be used for connection.

Application

Voltage and current display relay used in administrative, industrial and residential buildings and has the function of protecting single-phase lines:

• Undervoltage protection;

• Overvoltage protection;

• Working under voltmeter mode;

• Overcurrent proteciton.

General

Technical data	YC7VA		YC7V			YC7A
Rated Working Voltage	AC 220V
Operation voltage range	AC 80V-300V					AC 80V-300V
Rated frequency	50Hz/60Hz
Overvoltage(>U)setting range	130-300V
Undervoltage(<U)setting range	80-210V
Rated current	40/63A(subject to prodect label)					1~40/63A(subject to prodect label)
>U and <U trip delay	1-999S		Default 30S			0.5S(>Atrip delay)
Reset/start delay	1-999S		Default 5S			1~999S
Voltage measurement accuracy	2%(Not exceeding 2%of the overall range)					1%(Not exceeding 1%of the overall range)
Rated insulation voltage	400V
Output contact	1NO
Electrical Life	105
Mechanical Life	106
Protection degree	IP20
Pollution degree	3
Altitude	≤2000m
Operating temperature	-50℃~55℃
Humidity	≤50%at 40%(without condensation)
Storage temperature	-30℃~70℃

Current specification		15A		25A	32A		50A	63A
Rated operating current(In,A)		15		25	32		50	63
Maximum operating current Imax(A,within 10min)		25		30	40		60	80
Max.power of load(kW)		3.6		5.5	7		11	13.9

Set UP menu

Setting

NO.Option code		Option	max	min	Default Step		Unit	Description
P1	Pt	Power-on delay	999	1	5	1/10	S
P2	rt	Recoverydelay	999	1	30	1/10	S
P3	oU	Overvoltage	300	130	270	1/10	V	Close overvoltage if greater than 300
P4	oUr	Overvoltage recovery value	295	125	265	1/10	V	Skip this setting when overvoltage is turned off
P5	uU	Undervoltage	210	80	170	1/10	V	Close undervoltage if below 80
P6	uUr	Undervoltage recoveryvalue	215	85	175	1/10	V	Skip this setting when undervoltage is turned off
P7	Utt	Overvoltage action delay	10.0	0.1	0.5	0.1/1.0	S
P8	UAd	Voltage correction	+10%	-10%	0	0.5%	V	Long press settingis not recommended
P9	oC	Overcurrent	63.0	1.0	63.0	0.1/1.0	A	Close overcurrent if greater than 63.0
P10	Ctt	Overflow as delay	10.0	0.1	1.0	0.1/1.0	S
P11	CC	Continuous overcurrent counting	20	0	0	1	Times	0:Turn off counting
P12	CAd	Current correction	+10%	-10%	0	0.5%	A	Long press settingisnot recommended
P13	FAd	Frequency correction	+2.5%	-2.5%	0	0.1%	Hz	Modifyingthis value will affect the accuracy ofthe timer
P14	FPd	Rapid power failure protection	on	off	on		MS
P15	dS	Display mode	3	1	1	1		1:Standards
								2:Manualswitch
								3:Automatic switch
P16	Ar	Automatic reset	on	off	on			on:Self-recovery
P16	Ar	Automatic reset	on	off	on			off:Manual recovery
P17	Act	Action/knifemode	on	off	on			on:Protector working properly
P17	Act	Action/knifemode	on	off	on			off:knife mode
P18	EC	Energy saving mode	on	off	off			on:Open
P18	EC	Energy saving mode	on	off	off			off:Close
P19	Loc	Setuplockpassword	999	000	112	1/10		When this value is not 112,you can only view the parameter and cannot set it