MILITARY - ENVIRONMENTALLY SEALED SWITCHES Series - 8500, 8501, 8502 FEATURES MIL-S-3950 Toggle Switches SPECIFICATIONS * Environmentally sealed * 1, 2 and 4 pole circuitry * 2 & 3 position with maintained and momentary action * Molded-in terminal inserts and terminal numbers CURRENT RATINGS * Environmentally sealed per MIL-S-3950 * MS approved and QPL'd per MIL-S-3950 * Thermoset molding materials meet flame retardant requirements * Bushing: 15/32" - 32 thread * Temperature Range: -85F to +160F (-65C to +71C) * Life: 20,000 operations at rated load 40,000 operations mechanical life No. of Poles Catalog Number Type of Operation 28VDC Lamp Resistive Inductive Load Load Load 1 8500 Maintained 5 20 15 Momentary 4 15 10 2 8501 Maintained 7 20 15 Momentary 5 18 10 4 8502 Maintained 5 20 12 Momentary 4 18 10 Minimum Rating: "Intermediate Current" per MIL-S-3950. Minimum Rating: "Intermediate Current" per MIL-S-3950 115 VAC 60 or 400Hz Lamp Resistive Inductive Load Load Load 3 15 10 2 15 7 4 15 15 2 11 8 4 15 15 2 11 8 STANDARD LEVER SELECTION TABLE 8501 8500 CIRCUIT WITH LEVER IN . . . Up Position Center Position ONE POLE * * * * OFF NONE NONE OFF OFF* NONE OFF OFF NONE NONE OFF ON ON ON ON ON ON ON ON ON OFF ON NONE NONE ON* ON* ON* OFF* ON* ON* NONE NONE ON ON* ON* ON ON* ON* MS24523-21 -22 -23 -24 -25 MS24523-26 -27 -28 -29 -30 MS24523-31 -32 -33 -- -- -- -- -- -- Catalog Number 8500K1 K9 K4 K6 K8 8500K5 K2 K7 K10 K11 8500K3 K12 K13 -- -- -- -- -- -- * Momentary contact. See page A71 for circuit diagrams. A20 FOUR POLE Down Position (Keyway) MS Part Number ON ON ON ON ON ON ON NONE ON OFF ON ON ON ON ON ON ON ON ON TWO POLE 8502 EATON CORPORATION Aerospace TF300-5 June, 2004 MS Part Number MS24524-21 -22 -23 -24 -25 MS24524-26 -27 -28 -29 -30 MS24524-31 -32 -33 MS27407-1 -2 -3 -4 -5 -6 Catalog Number 8501K1 K9 K4 K6 K8 8501K5 K2 K7 K10 K11 8501K3 K12 K13 8501K14 K15 K16 K17 K18 K19 MS Part Number MS24525-21 -22 -23 -24 -25 MS24525-26 -27 -28 -29 -30 MS24525-31 -32 -33 MS27406-1 -2 -3 -- -- -- Catalog Number 8502K1 K9 K4 K6 K8 8502K5 K2 K7 K10 K11 8502K3 K12 K13 8502K15 K16 K17 -- -- --