Macromatic unfortunately has to announce that all our 17.5mm products, both time delay relays & voltage monitor relays, are no longer available. For reasons beyond our control, our partner who was supplying these products to Macromatic lost their UL Listing and decided not to make the investment to re-list their products. Macromatic made the strategic decision that we could not sell these products without the UL Listed Mark. We apologize for this inconvenience but there was nothing we could do. For more information, please contact Macromatic at 800-238-7474.