DESCRIPTION

3-1618398-7 is a high-voltage vacuum relay from the K81C series designed for switching applications requiring high voltage isolation and reliability. The relay features a single-pole double-throw (SPDT) contact arrangement with Form C configuration, rated for 10 kV DC or 60 Hz peak operating voltage and capable of withstanding 11 kV DC or 60 Hz peak test voltage. It is available in multiple coil voltage options (12 V, 26.5 V, or 115 V nominal) with corresponding pickup and dropout voltage specifications, and includes two high-voltage terminals and coil terminals for integration into high-voltage switching systems. This relay is commonly used in power distribution, test equipment, and industrial applications where reliable high-voltage switching with vacuum insulation is essential.