Purpose
Three phase monitor serves to protect the three-phase electric motors supplied from three-phase mains, against phase collapse in at least one phase or against phase-to-phase voltage asymmetry or against damage of contacts threatening to damage the motor.
Technical data
| supply | 3×400/230V+N |
| contact | 1C/O |
| current load | <10A |
| signalling of supply | 2 × LED |
| activation voltage asymmetry | 40÷55V~ |
| activation voltage | 175÷190V~ |
| histeresis | 5V~ |
| switch-OFF delay | 3÷5sec |
| power consumption | 1,6W |
| working temperature | -25÷50°C |
| connection | screw terminals 2,5mm² |
| dimensions | 3 modules (52,5mm) |
| fixing | on rail TH-35 |
Three-phase monitors with checking state of contactor contacts
- Product Code: CZF-332