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Multifunctional phase control relay RKF-24 EKF is a microcontroller-based device. The relay is used in automation systems and is designed for high-precision power quality monitoring of a three-phase network. 230/400 V AC The relay monitors the following parameters:
• phase absence;
• voltage drop;
• voltage rise;
• voltage asymmetry with a response time delay;
• phase sequence.
• neutral monitoring.
The relay allows adjusting both the fault delay time and the turn-on time in the range from 0.1 to 10 seconds.
1-phase
No
3-phase
Yes
1-phase hysteresis monitoring possible
No
1-phase undervoltage monitoring possible
No
3-phase hysteresis monitoring possible
Yes
3-phase undervoltage monitoring possible
Yes
Height
90 мм
Height
90 мм
Depth
65 мм
Voltage measurement range 1 at
215 В
Voltage measurement range 1 from
155...215 В
Voltage measuring range 2 to
285 В
Voltage measuring range 2 from
225...285 В
Voltage measuring range to
345 В
Voltage measuring range from
89...345 В
Number of normally closed (NC) contacts
0
Number of normally open (NO) contacts
0
Number of switching contacts
2
Maximum permissible delay time
10 с
Maximum permissible trip delay time without holding
10 с
Minimum adjustable delay time
0.1 с
Minimum adjustable response delay time without time lag
0.1 с
Rated control supply voltage Us AC at 50 Hz up to
400 В
Rated control supply voltage Us AC at 50 Hz from
70...400 В
Rated control circuit AC supply voltage Us at 60 Hz from
70...400 В
Tripping threshold voltage to
285 В
Response threshold voltage from
155...285 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
Phase sequence monitoring function
Yes
Phase asymmetry detection function
Yes
Phase failure detection function
Yes
Overvoltage detection function
Yes
Undervoltage detection function
Yes
Width
35 мм
0
★★★★★
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