MVR 54N 400VAC, Voltage Monitoring Relay, 3 Phase 4 wire, 415VAC Over/Under Voltage Detection, 1 x CO SPDT 8 Amp Contact, Adjustable Timer Delay, Adjutsable Upper and Lower Voltage Limits
$14.99
Iskra Doo MVR 54N 400VAC Series Voltage Monitoring RelayMVR 54N Series serves to monitor voltage, phase failure and sequence in switchboards, protection of devices in 3-phase 4 wire mainsFeatures Upper and lower level of monitoring voltageAdjustable time delay eliminates short voltage peaks and failures in the…
Iskra Doo MVR 54N 400VAC Series Voltage Monitoring Relay
MVR 54N Series serves to monitor voltage, phase failure and sequence in switchboards, protection of devices in 3-phase 4 wire mains
Features
- Upper and lower level of monitoring voltage
- Adjustable time delay eliminates short voltage peaks and failures in the main
- Supply is done from monitored voltage
- Faulty state is indicated by red LED and by opening of output relay contact
- Output contact 1 x Changeover / SPDT 8 A /250 V AC1
- In case supply voltage falls below 60 %Un (U lower level) relay off immediately opens without delay
- MVR 54 – supply from all phases which means that relay is functional also in case when one phase is faulty
- Variant MVR 54N – supply L1-N, means that relay monitors also failure of neutral wire
- 1-MODULE, DIN rail mounting
Specification
|
Technical Data |
MVR 54 |
MVR 54N |
|
Supply and measuring |
L1, L2, L3 |
L1, L2, L3, N |
|
Supply terminals |
L1, L2, L3 |
L1, N |
|
Supply/measured voltage |
3 x 400 V / 50 Hz |
3 x 400 V / 230 V /50 Hz |
|
Level Umax |
105 – 125 % Un |
|
|
Level Umin |
75 – 95 % Un |
|
|
Burden |
max. 2 VA |
|
|
Hysteresis |
2 % |
|
|
Max. permanent overload |
AC 3 x 460 V |
AC 3 x 265 V |
|
Peak overload <1ms |
AC 3 x 500 V |
AC 3 x 288 V |
|
Time delay T1 |
max. 500 ms |
|
|
Time delay T2 |
adjustable 0.1-10 s |
|
|
Output |
|
|
|
Number of contacts |
1x changeover/ SPDT (AgNi / Silver Alloy) |
|
|
Current rating |
8 A / AC1 |
|
|
Breaking capacity |
2500 VA / AC1, 240 W / DC |
|
|
Inrush current |
10 A |
|
|
Switching voltage |
250 V AC1 / 24 V DC |
|
|
Min. breaking capacity DC |
500 mW |
|
|
Indication of state |
red LED |
|
|
Mechanical life |
1 x 107 |
|
|
Electrical life (AC1) |
1 x 105 |
|
|
Other information |
|
|
|
Operating temperature |
-20 … +55 °C |
|
|
Storage temperature |
-30 … +70 °C |
|
|
Electrical strength |
4 kV (supply – output) |
|
|
Operating position |
any |
|
|
Mounting |
DIN rail EN 60715 |
|
|
Protection degree |
IP 40 from front panel / IP 10 terminals |
|
|
Overvoltage cathegory |
III. |
|
|
Pollution degree |
2 |
|
|
Max. cable size (mm )2 |
solid wire max. 2×2.5 or 1×4 ; with sleeve max. 1×2.5 or 2×1.5 |
|
|
Dimensions |
90 x 17,6 x 64 mm |
|
|
Weight |
69 g |
67 g |
|
Standards |
EN 60255-6, EN 61010-1 |
Datasheet
- Product Datasheet
Application Notes
Relay in 3-phase main monitors size of phase voltage. It is possible to set two independent voltage levels and thus it is possible to set two independent voltage levels and monitor e.g. undervoltage and overvoltage independently. In normal state when voltage is within set levels, output relay is closed and red LED shines.
In case voltage exceeds or falls below the set levels, output relay opens and red LED shines ( LED indicates faulty state – flashes when timing). In case supply voltage falls below 60 % Un (UOFF lower level)relay immediately opens without delay and faulty state is indicated by red LED.In case timing is in progress and faulty state is indicated, timing is immediately stopped.
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