The REAL-EL VR-101F voltage relay is designed to protect household appliances (refrigerators, washing machines, PCs, video and audio equipment, etc.) connected to it against inadmissible voltage fluctuations in the power supply network.

The REAL-EL VR-107P voltage relay is designed to protect household appliances (refrigerators, washing machines, PCs, video and audio equipment, etc.) connected to it against inadmissible supply voltage deflections and impulse noises in the power supply network.