Three-phase voltage relay CP-500, Un=3x500V without N Un=3x500V without N, mounting on TH-35 rail

Three-phase voltage relay – reliable protection for your installation

This three-phase voltage relay CP-500 is a key device for monitoring and protecting the electrical network. Designed to operate in 3x500V systems without a neutral wire, it provides comprehensive protection against various power disturbances. TH-35 rail mounting simplifies integration with existing infrastructure.

Functionality and application

The CP-500 relay is primarily intended for protecting electric motors powered by a three-phase network. It protects against the effects of voltage loss in one or more phases, voltage asymmetry, and excessively high or low voltage. This minimizes the risk of damage to connected devices and ensures continuity of operation. The device is suitable for industrial, commercial and domestic applications where power stability is critical.

Key features and benefits

• Versatile protection: Control of 3-phase overvoltage and 1- and 3-phase undervoltage provide comprehensive installation protection.
• Adjustable operating voltage: The ability to set the operating voltage range (420…580 V) allows you to adapt the relay to specific application requirements.
• Hysteresis function: For both 1- and 3-phase voltage, the hysteresis function prevents unnecessary switching on and off in the event of momentary voltage fluctuations.
• Two changeover contacts: Two independent changeover contacts increase configuration flexibility and allow connection of various control or signaling circuits.
• Compact dimensions: Dimensions 70 mm (width) x 90 mm (height) x 65 mm (depth) allow mounting in limited space.
• Screw connection: Ensures a solid and reliable electrical connection.
• Adjustable time delay: The ability to set the minimum time delay in case of power failure (1…10 s) helps avoid false alarms caused by short-term power outages.

The CP-500 relay is not only a protective element, but also an investment in the reliability and durability of your electrical installation. Its solid construction and precise operation guarantee long-term and trouble-free operation.