The 99.02.0.024.98 is a Green LED + Varistor Module for 6 to 24VAC/DC coil. The reverse voltage peaks of the relay coil are limited by the Varistor to approximately 2.5 times the nominal voltage of the supply. When using DC coils it is essential that positive is connected to terminal A1. The relay release time increases insignificantly. Applications Industrial, LED Lighting