The F&F CKF-BR-TRMS DIN-rail relay monitors the voltage of each phase in three-phase networks. It protects against phase loss, voltage asymmetry and incorrect phase sequence: when it detects voltage loss or asymmetry above the set limit, it switches off the motor after a 4 s delay, while an incorrect phase sequence prevents the motor from starting. Despite the True RMS indication on the model, it does not use True RMS technology.
- Supply voltage: 3 × 400 V + N
- Maximum load current: 10 A
- Contact configuration: 1 × NO/NC
- Voltage asymmetry trip setting: 40–80 V
- Voltage hysteresis: 5 V
- Switch-off delay: 4 s
- Power supply status indication: 2 LEDs
- 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 DIN rail
- Protection rating: IP20
- Voltage
- 400 V
- Nominal Voltage
- 10 A
- with Energy Consumption Meter
- No
- with Timer
- No
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.