This FAQ has been written for NEAL (North East Africa and Levant) region. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.
The ASCO 917 is an obsolete product and was superseded by the ASCO 918. Aside from the obvious difference in color, the 918 offers an improved performance.
Due to the high inrush associated with HID and halide lighting, closing the contacts requires more force to prevent the contacts from “bouncing”. Contactor “Bounce” results when several coil cycles are required to achieve full closure at peak inrush and the subsequent arcing causes the contacts to wear out more quickly. The 918 includes a driver circuit board that ensures that the coil voltage is applied at the peak of the cycle, preventing the contact “bounce”.
Due to this design improvement, the 918 nameplate shows a change in Ballast rating from 20A to 30A.
Released for: Schneider Electric Egypt and North East Africa
