Wenzhou giant Electrical Appliance Co., Ltd.

0
over and under voltage
over and under voltage
under voltage and over voltage protection

3 phase 4 wire / 3 phase 3 wire system / Phase failure/phase unbalance / under and over voltage / phase monitoring relay

SM-OP4
Three phase , 3 phase 4 wire ,
380V ,420V ,optional

Functions :
1.over voltage :10%-20%
2.under voltage :2%-20%
3.phase failure
4.three-phase unbalance :2%-20%
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3 phase 4 wire / 3 phase 3 wire system / Phase failure/phase unbalance / under and over voltage / phase monitoring relay

Voltage protector

Specification : SM-OP4

Feature

Power consumption  

2VA

Input voltage  

110,220 ,440 ,460 VAC

380,400 or 415 VAC 

System frequency  

50/60HZ

Accuracy  

±0.5% of normal voltage


Display

7 segment red LED Letter 0.39"(9.90mm)

Range

Over voltage (OV)

Adjustabele from 10% to 20%(Requirement 10-25%)

Under voltage (UV)

Adjustabele from 2% to 20%(Requirement 2-25%)

Unbalance voltage(UB)

Adjustabele from 2% to 20%(Requirement 2-25%)

Differential(Hysteresis)

Preset at 1 %

Time 

Delay off

UV and UB adjustable 0-5 sec.

OV preset at 2 sec.

Delay on 

Adjustable 0-15 min

Relay output 

Output type 

 2-pole change over (DPDT)

Contact rating 

5A at 250 VAC

Operations 

Mechanical : 2*10^7

Electrical : 1*10^5 

Relay reset

Automatic

Environmental

Operating temperature

 -10℃ to +55℃

Storage temperature 

-10℃ to +70℃

Ambient humidity 

Max 85% RH

Enclosure

Mounting 

DIN rail 35mm

Housing 

ABS UL94V-0

Protection class 

IP20

Wire fixing 

Screw terminal block (3.5mm^2 self lifting )

Indicator 

LED 3mm

Dimension in mm 

60*79.50*109.90

Weight 

303g