CKF-B PHASE SEQUENCE AND FAILURE SENSOR TH35

With a fixed voltage asymmetry trigger threshold. Contact 1 x NO.

Application

The phase sequence and failure sensor is designed to protect electric motors powered from a three-phase network in cases of voltage loss in at least one phase or voltage asymmetry between phases, which threaten to damage the motor, as well as to ensure the correct direction of motor rotation in the event of a phase change before the sensor.

Technical Data

• Supply voltage: 3 × 400 V + N
• Compatibility with generators: NO
• Phase failure / asymmetry control: YES
• Phase sequence control: YES
• Contactor contact control: NO
• Actuating element: relay
• Maximum load current: 10 A
• Contact configuration: 1 × NO
• Contact separation: YES
• Voltage asymmetry trigger: 55 V
• Voltage hysteresis: 5 V
• Switch-off delay: 4 s
• Power supply control: 2 × LED
• Connection: screw terminals 4.0 mm²
• Tightening torque: 0.5 Nm
• Power consumption: 1.6 W
• Operating temperature: -25 to 40°C
• Dimensions: 2 modules (35 mm)
• Mounting: on a 35 mm rail
• Protection degree: IP20