Function relay

Instead of timer modules with just one function, these modules offer an inexpensive way to realise several common time functions such as switch-on delay, switch-on wiping, switch-off wiping or pulse monitoring. They reduce storage costs as only one module is required for all applications.

This function block has a freely definable flashing function. The output relay is energised in the ratio of the two set times until the supply voltage is interrupted. Operation can be selected between pulse start and pause start.

These function blocks can be used to realise undervoltage monitoring for AC voltage in 3-phase or 1-phase networks. They monitor the power supplies and protect motors and other loads against phase faults. Too low a voltage or a phase failure pose a major risk and can lead to system faults.

Star-delta switching is a frequently used function in the field of motor control technology. These timing relays were developed to realise this as simply as possible. Thanks to their adjustable changeover time, they can be used for a wide variety of motor types.

The voltage monitoring relays monitor three-phase networks with and without neutral conductors in the simplest possible way. They ensure the availability and reliability of a system or machine by precisely recording parameters, thereby providing lasting added value. Monitoring phase sequence, phase failure and asymmetry is a prerequisite for operating systems such as pumps and machines safely and preventing damage in a simple and efficient way.