CP-500 F&F voltage relay
- CP-500 F&F voltage relay
CP-500 F&F voltage relay
Product description
The CP-500 sensor is designed to protect electric motors supplied from a 3×500 V three-phase network in cases of voltage loss in at least one phase, symmetrical voltage drop in three phases or voltage asymmetry between phases, threatening to destroy the motor, and to protect the direction of motor rotation in case of phase change in front of the sensor.
Protection functions
* against phase loss
* against phase voltage drop below 240 V
* against phase sequence reversal
* against phase asymmetry
* against symmetrical voltage rise above 580 V
* against symmetrical voltage drop below 420 V
Operation
At normal network voltages, the contacts are closed. The occurrence of any anomaly for a period longer than the set time, triggers the protection - opening the contacts of the sensor. Closure of the contacts will occur automatically with a time delay, after the return of correct network parameters.
Technical data:
| Type | three-phase |
| Supply voltage | 3 × 500 V |
| Executive element | 2 × relay |
| Maximum load current | 2 × 8 A |
| Contact configuration | 2 × NO/NC |
| Contact separation | YES |
| Tripping voltage asymmetry | 40÷80 V |
| Power supply monitoring | 4 × LED |
| Return voltage hysteresis | 5 V |
| Voltage thresholds / operation time - upper | 580 V / 0.5 s |
| Voltage thresholds / operating time - lower | 420 V / 5 s |
| Tripping time at asymmetry - adjustable | 1÷10 s |
| Return time adjustable | 1÷15 s |
| Connection of contacts 1 and 2 | screw terminals 2.5 mm² |
| Connection of L1, L2, L3 | 4.0 mm² screw terminals |
| Tightening torque | 0.5 Nm |
| Power consumption | 0,7 W |
| Operating temperature | -25 ÷ 50 °C |
| Dimensions | 4 modules (70 mm) |
| Mounting | on a 35 mm rail |
| Protection class | IP20 |