Phase sequence and phase loss sensor contact 1Z 10A hermetic housing connection cable CKF F&F
- Phase sequence and phase loss sensor contact 1Z 10A hermetic housing connection cable CKF F&F
CKF phase sequence and phase loss sensor
CKF
The phase sequence and phase loss sensor is designed to protect electric motors supplied from a three-phase network in cases of voltage loss in at least one phase or voltage asymmetry between phases, threatening to destroy the motor, as well as to protect the direction of motor rotation in case of phase change in front of the sensor.
Operation
A voltage loss in at least one phase of any phase or voltage asymmetry between phases above the trip threshold will cause the motor to shut down. The shutdown will occur with a delay of 4 s, which prevents accidental disconnection of the motor during a momentary voltage drop. Reconnection will occur automatically when the voltage rises by 5 V above the trip voltage (i.e., by the voltage hysteresis value). With the above anomalies, it is impossible to start the motor. In the event of a change in the sequence of phases in front of the sensor causing an undesirable change in the direction of rotation of the motor, the sensor will not allow the motor to start. Reconnection is possible after the return of the correct phase order.
Technical data:
Supply voltage | 3 × 400 V + N |
Cooperation with generators | NO |
Control of phase loss / asymmetry | YES |
Phase sequence control | YES |
Contactor contact monitoring | NO |
Executive element | relay |
Maximum load current | 10 A |
Contact configuration | 1 × NO |
Contact separation | YES |
Tripping voltage asymmetry | 45 V |
Voltage hysteresis | 5 V |
Cut-off delay | 4 s |
Power control | 2 × LED |
Connection | OMY 4×1 mm?; 2×0.75 mm?, l: 0.5 m |
Power consumption | 1,6 W |
Operating temperature | -25÷40°C |
Dimensions | 51×67×26 mm (± 1 mm) |
Mounting | surface mounted |
Protection class | IP20 |
F&F CKF