This Acti 9 iRCP is a Phase control relay. The voltage measurement range is 0.15VAC to 10VAC. It monitors phases and the presence of voltage on the 3 phases of a 3 phase circuit power supply. It indicates also any phase loss or inversion. It supplies 1 fail-safe change-over contact. The parameter setting is done on the front panel by direct scale by using a screwdriver. It could be used for example to control the power supply of a 3-phase motor. The precision of the display is +/- 10% of the full scale. The time delay on tripping is 0.3s. The Uc supply voltage is 400VAC +/- 15%. The operating frequency is 50Hz or 60Hz. The output by changeover contact current is 8A under 250VAC with cos phi equal to 1. On the front face green led indicates the voltage presence. The red led indicates a fault. The consumption is 3VA. The dissipated power is 2W. The width in 9mm pitches is 4. The degree of protection is IP20. The dimensions are (W) 36mm x (H) 88,1mm x (D) 65mm. The operating temperature is -5°C to + 55°C. The storage temperature is -40°C to + 80°C.