Purpose
Three phase monitors serve 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, threatening to damage the motor.
Technical data
| supply | 3×400/230V+N |
| contact | 2C/O |
| current load | 2×(<8A) |
| signalling of supply | 3×LED in each phase circuit |
| activation voltage asymmetry | 40÷55V~ |
| activation voltage | 175÷190V |
| histeresis | 5V~ |
| switching-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 |
Phase control relays and adjustable actuation threshhold voltage asymmetry
- Product Code: CZF-331