Tecmate Optimate O40 SAE dash/ bulkhead/ panel connection The Tecmate Optimate O-40 SAE is a weatherproof SAE contact intended for dashboard/ bulkhead/ panel mounting. After mounting, you have an SAE input/contact to which you can connect a cable with an SAE plug. The Optimate O40 is the longer (longer cable behind the mounting panel) version of the Optimate O40S. Mounting The mounting of this accessory is explained on its packaging. Required is at least an 18 mm hole in the dasboard/panel or bulkhead. The panel thickness must be at least 1 mm. Details Cable length (behind the bulkhead/panel): 100 cm Maximum power of the cable: 5A Workable temperature from: -40 degrees Celsius