Евроавтоматика F&F
Phase control relay for networks with isolated neutral CKF-345 (DIN-rail 35mm mounting; trip threshold adjustment; phase sequence control; 3x500V 2x8A 1x2P IP20) F&F EA04.004.001 Evroavtomatika F&F
SKU: EA04.004.001
ETIM: EC001441
4,790 ₽
Get back 47 ₽ in points
Analogues by specifications
"CKF" series phase control relay
DIN-rail mounting.
Designed to protect electric motors and electrical installations powered from a three-phase network in cases of: absence of at least one phase, voltage asymmetry, voltage drop below 420 V, voltage rise above 580 V, or violation of phase sequence.
Operating principle
If the voltage is within normal limits, the contacts of the control relay are closed and voltage is supplied to the motor control contactor, controlling its activation. In case of any of the above-mentioned emergency situations, the relay contacts open and the contactor is disconnected. Activation occurs automatically after the restoration of the mains supply voltage.
Features:
phase presence control;
asymmetry control between phases;
low voltage control;
upper voltage control;
phase sequence control;
supply voltage 3x500 V AC;
contact - 2NO/NC
Height
90 мм
Depth
65 мм
Number of switching contacts
2
Maximum permissible delay time
10 с
Maximum permissible trip delay time without holding
15 с
Minimum adjustable delay time
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Minimum adjustable response delay time without time lag
1 с
Phase sequence monitoring function
Yes
Phase asymmetry detection function
Yes
Phase failure detection function
Yes
Overvoltage detection function
Yes
Undervoltage detection function
Yes
Width
70 мм
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