Phase I loss sensor 1P 10A contact 1 module CZF-310 F&F
- Phase I loss sensor 1P 10A contact 1 module CZF-310 F&F
CZF-310 phase loss sensor
CZF-310
Phase loss sensor is designed to protect an electric motor supplied from a three-phase network in cases of voltage loss in at least one phase or voltage asymmetry between phases, threatening destruction of the motor.
Operation
Voltage loss in at least one phase or voltage asymmetry between phases above the tripping threshold will switch off the motor. The shutdown will be performed with a 4 s delay, 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, the relay contact is disconnected and it is impossible to start the motor.
Technical data:
Supply voltage | 3 × 400 V + N |
Cooperation with generators | NO |
Control of phase loss / asymmetry | YES |
Phase sequence control | NO |
Contactor contacts control | NO |
Executive element | relay |
Maximum load current | 10 A |
Contact configuration | 1 × NO/NC |
Contact separation | YES |
Tripping voltage asymmetry | 55 V |
Voltage hysteresis | 5 V |
Cut-off delay | 4 s |
Power monitoring | 3 × green LED |
Connection | screw terminals 2.5 mm? |
Tightening torque | 0.4 Nm |
Power consumption | 0,56 W |
Operating temperature | -25÷40°C |
Dimensions | 1 module (18 mm) |
Mounting | on a 35 mm rail |
Protection class | IP20 |
CZF-310 F&F