EKF
Three-Phase Voltage and Current Monitoring Relay with Display MRVA-3 63A EKF MRVA-3-63A
SKU: MRVA-3-63A
ETIM: EC001438
4,079 ₽
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Analogues by specifications
EKF PROxima voltage and current relay is a microprocessor device designed for continuous voltage monitoring in single-phase and three-phase (MRVA-3) AC networks, to protect electrical installations from voltage surges. The relay monitors the network voltage within a set range and, if the voltage goes outside the range, disconnects the equipment from the power supply with a specified time delay. Setting the voltage range and response time is done using rotary regulators (RV-5A, RV-32F) or using buttons (MRV, MRVA, MRVs) located on the front surface of the relay.
1-phase
Yes
3-phase
Yes
1-phase hysteresis monitoring possible
Yes
1-phase undervoltage monitoring possible
Yes
3-phase hysteresis monitoring possible
Yes
3-phase undervoltage monitoring possible
Yes
Height
90 мм
Height
90 мм
Depth
60 мм
Voltage measurement range 1 at
210 В
Voltage measurement range 1 from
120...210 В
Voltage measuring range 2 to
300 В
Voltage measuring range 2 from
220...300 В
Number of normally closed (NC) contacts
0
Number of normally open (NO) contacts
3
Number of switching contacts
0
Maximum permissible delay time
600 с
Maximum permissible trip delay time without holding
600 с
Minimum adjustable delay time
0.02 с
Minimum adjustable response delay time without time lag
5 с
Rated control supply voltage Us AC at 50 Hz up to
400 В
Rated control supply voltage Us AC at 50 Hz from
80...400 В
Rated control circuit AC supply voltage Us at 60 Hz from
80...400 В
Rated control supply voltage Us DC up to
0 В
Rated control supply voltage Us DC from
0 В
Rated switching current
63 А
Tripping threshold voltage to
300 В
Response threshold voltage from
120...300 В
Switch-on current type
AC (alternating)
Monitored voltage current type
AC (alternating)
With removable terminals, clamps
No
Includes DC voltage monitoring functions - hysteresis
No
Includes DC voltage monitoring functions - overvoltage
No
Includes DC voltage monitoring functions - undervoltage
No
Connection type
Screw connection
Width
90 мм
0
★★★★★
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