domestic and industrial automation

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Phase control relays CZF-332

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Phase control relays CZF-332

Reference: CZF-332, EAN13: 5908312593218

Product description

With separated contact.
Three phase monitor serves to protect the three-phase electric motors supplied from three-phase mains, against phase collapse in at least one phase or against phase-to-phase voltage asymmetry or against damage of contacts threatening to damage the motor.

Functioning
Phase collapse in at least one or voltage unbalance between phase above set value causes switching-OFF the motor. The motor switching-OFF occurs with sec delay, which prevents any accidental motor disconnecting at temporary voltage drop. The re-connection will occur automatically at voltage increase of 5V above activation voltage (i.e. of value of voltage hysteresis). At occurrence of these disturbances, it is not possible to set a motor in motion. Shining of red diode LED along with simultaneous disconnecting the apparatus permanently, indicates contactor contacts damage. Reactivation of the apparatus is possible (after contact repair), after disconnecting from supply all three phases (fuses) and then, after switching-ON anew.

Power supply voltage	3 × 400 V + N
Cooperation with power generators	NO
Phase failure / asymmetry monitoring	YES
Phase sequence control	NO
Contactor contact monitoring	YES
The executive element	relay
Maximum load current	10 A
Contact configuration	1 × NO/NC
Separation of the contact	YES
Voltage asymmetry	40÷80 V
Voltage hysteresis	5 V
Switch off delay	4 s
Power control	2 × LED
Terminal	pluggable terminal blocks 4,0 mm²
Tightening torque	0,5 Nm
Power consumption	1,6 W
Working temperature	-25÷40°C
Dimensions	3 modules (52,5 mm)
Assembly	on rail 35 mm
Ingress Protection Marking	IP20
TrueRMS	NIE