Safran Electrical & Power 8505K43 Safran Power 8505K43

The 8505K43 is a four-pole, lever-lock switch from the 8505 series, designed for environmentally sealed applications per MIL-DTL-3950. It features a locking actuator, thermoset molding, and a 15/32-32 UN-2A threaded bushing. The switch supports maintained or momentary contact, with a rated life of 20,000 operations at rated load and 40,000 operations mechanical. It operates within a temperature range of -65°C to +71°C and has flush screw terminals. Terminal numbering and circuit configuration correspond to the MS27409-1A designation for the ON-ON-ON-ON circuit with lever positions Up-Up-Up-Up. Mounting dimensions include a panel cutout of 0.480 inch diameter and a keyway requiring a 0.062 inch deep shoulder. The switch is approved and qualified per MIL-DTL-3950.