EKF
Three-phase voltage and current relay with display MRVA 63A EKF MRVA-3-63A-v2
SKU: MRVA-3-63A-v2
ETIM: EC001438
5,871 ₽
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**Voltage and current relay** for continuous monitoring of electrical network parameters and protection of equipment from voltage fluctuations, overloads and current surges. The devices are used in single-phase and three-phase networks to prevent failure of household and industrial appliances, ensuring timely disconnection of the load when parameters deviate from the specified limits.
* Network type: single-phase, three-phase
* Switched current: up to 63 A
* Voltage adjustment range: 180–270 V
* Response time: from 0.1 to 10 seconds
* Protection degree: IP20
* Indication: LED or LCD display (depending on the model)
**Advantages:**
* Automatic protection prevents equipment damage during voltage and current surges
* Ability to adjust trip thresholds for specific conditions
* Status indication allows visual monitoring of network parameters
* Modular housing and convenient connection
**Voltage and current relay** for continuous monitoring of electrical network parameters and protection of equipment from voltage fluctuations, overloads and current surges. The devices are used in single-phase and three-phase networks to prevent failure of household and industrial appliances, ensuring timely disconnection of the load when parameters deviate from the specified limits.
* Network type: single-phase, three-phase
* Switched current: up to 63 A
* Voltage adjustment range: 180–270 V
* Response time: from 0.1 to 10 seconds
* Protection degree: IP20
* Indication: LED or LCD display (depending on the model)
**Advantages:**
* Automatic protection prevents equipment damage during voltage and current surges
* Ability to adjust trip thresholds for specific conditions
* Status indication allows visual monitoring of network parameters
* Modular housing and convenient connection
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
85 mm
Height
85 mm
Depth
67 mm
Voltage measurement range 1 at
210 V
Voltage measurement range 1 from
80...210 V
Voltage measuring range 2 to
280 V
Voltage measuring range 2 from
220...280 V
Number of normally closed (NC) contacts
0
Number of normally open (NO) contacts
3
Number of switching contacts
0
Maximum permissible delay time
600 s
Maximum permissible trip delay time without holding
600 s
Minimum adjustable delay time
0.02 s
Minimum adjustable response delay time without time lag
5 s
Rated control supply voltage Us AC at 50 Hz up to
450 V
Rated control supply voltage Us AC at 50 Hz from
50...450 V
Rated control circuit AC supply voltage Us at 60 Hz from
50...450 V
Rated switching current
63 A
Tripping threshold voltage to
280 V
Response threshold voltage from
80...280 V
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 mm
0
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