Voltage relay CP-709 single-phase, Un=450V+N, I=16A, 1 module

Single-phase network monitoring & protection

The CP-709 voltage relay is a reliable device designed to monitor voltage in single-phase networks. It serves to protect connected receivers from the effects of dangerous voltage fluctuations, both too high and too low. Mounted on a 35mm rail, this relay is a key element of electrical installations, ensuring stable and safe power supply.

Functionality and application

This device is ideal for anywhere where protection of sensitive electronic devices against damage caused by unstable voltage is required. Thanks to the adjustable setpoint value in the range of 150-260V AC, the relay's operation can be precisely adapted to the specific needs of the installation. This is particularly important when protecting RTV, household appliances, home automation systems or industrial machines. The CP-709 relay reacts to both overvoltage and undervoltage, providing comprehensive protection.

Characteristics and construction

Compact dimensions (width 17mm – 1 module) allow for easy mounting of the relay in a switchboard even in limited spaces. It uses screw connection for ensuring a secure and durable connection of wires. No need for an external power supply simplifies installation and reduces operating costs. It has one changeover contact, which allows you to control the receiver circuit depending on the current voltage in the network. Adjustable time delay on power failure (1-10 seconds) minimizes the risk of unnecessary shutdowns caused by temporary disturbances. Hysteresis function ensures stable operation and prevents frequent relay switching with voltage fluctuations near the setpoint.