Automatic phase switch PEF-305 16A/230V Nova

Theautomatic phase sensor serves as a fuse for the installation and mechanical device supplied with current voltage. It operates in the event of the loss of one of the phases or a decrease in the parameters on which the device connected to it operates. The input of the switch is supplied with three-phase voltage (3 × 230 V+N). And this is the only thing you need to do to take care of the safety of the installation. After that, the product already searches for the problem and solves it itself.

Operation of the switch:

• Three-phase voltage (3 × 230 V+N) is directed to the input of the switch.
• To the output of the switch is directed single-phase voltage (230 V AC), that is, the phase voltage of one of the phases.
• The electronic circuit of the switch controls the voltage values of the supplied phases so that the output voltage is not less than 195 V.
• The phase with the correct parameters is directed to the switch output.
• The illumination of the corresponding green LED, indicates that the phase is connected to the switch output.
• Phase L1 is the priority phase, i.e. if its parameters are correct, this phase will always be switched on to the output.
• In the event of a voltage drop in phase L1 below 190 V or its disappearance (the green L1 LED goes out), the electronics will switch phase L2 to the output (if its parameters are correct).
• In case of simultaneous absence of correct voltages in phases L1 and L2 (green LEDs L3 and L2 go out), phase L3 will be switched to the output.
• In the event of the return of the correct supply voltage in phase L1 (above 195 V), the system will switch on this phase to the output.

Technical data:

• Rated phase voltage - 3 x 230 V AC + N V
• Enclosure protection degree - IP20
• Rated output voltage - 230 V AC
• Voltage hysteresis - 10 V AC
• Priority phase - L1
• Maximum output load capacity - 16 A for devices in AC1 class
• Relative voltage measurement error, %, less than - 1
• Switching threshold L1,L2,L3, V AC, less than - 180
• Rated power consumption - 1.7 W /3.8 VA - for three phases
• Overall dimensions - 90x35x66mm
• Terminals of the device allow connection of wires with a cross-section of - 0.2 to 2.5 mm²
• Mounting - on a standard 35 mm DIN rail