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%
380V ,420V ,optional
Functions :
1.over voltage :10%-20%
2.under voltage :2%-20%
3.phase failure
4.three-phase unbalance :2%-20%
Quantity
3 phase 4 wire / 3 phase 3 wire system / Phase failure/phase unbalance / under and over voltage / phase monitoring relay
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 |
| 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 |

