bushing ? 12 mm - ? Front panel sealing : IP67 according to IEC 60529 ? Shock resistance : 50 g - 11 ms according to IEC 68-2-27 ? Salt spray : IEC 512-6, test 11f ? Operating temperature : -40°C to +85°C ? Storage temperature : -40°C to +85°C ? Max. current/voltage rating with resistive load : 3A 28VDC ? Initial contact resistance : 100 mΩ max. ? Insulation resistance : 1 GΩ min. at 500VDC ? Dielectric strength : 500 Vrms between terminals ? Electrical life at full load : 25.000 cycles