MILITARY - ENVIRONMENTALLY SEALED SWITCHES Series - 8500, 8501, 8502 MIL-DTL-3950 Toggle Switches FEATURES SPECIFICATIONS CURRENT RATINGS No. of Catalog Type of 115 VAC s EnY ironmentally sealed per MIL-DTL-3950 s EnY ironmentaOO y seaO ed Poles Number Operation 28VDC 60 or 400Hz s MS approY ed and L d per MIL-DTL-3950 s 1 2 and 4 po O e circuitry Lamp Resistive Inductive Lamp Resistive Inductive s 2 3 position Z itK maintained and s TK ermoset molding materials meet Load Load Load Load Load Load momentary action flame retardant requirements s MoO ded-in terminaO inserts and s % usK ing: 15 32 - 32 t K read 1 8500 Maintained 5 20 15 3 15 10 s Temperature Range: -85 F to 160 F terminal numbers -65 C to 71 C Momentary 4 15 10 2 15 7 s Life: 20 000 operations at rated load 2 8501 Maintained 7 20 15 4 15 15 40,000 operations mechanical life Momentary5 18 10 2 11 8 4 8502 Maintained 5 20 12 4 15 15 Momentary4 18 10 2 11 8 STANDARD LEVER SELECTION TABLE Minimum Rating: Intermediate Current per MIL-DTL-3950. 8500 8501 8502 CIRCUIT WITH LEVER IN . ONE POLE TWO POLE FOUR POLE Up Center Down Position Position Position (Keyway) MS Part MS Part Catalog Catalog MS Part Catalog Number Number Number Number Number Number ON OFF ON MS24523-21 8500K1 MS24524-21 8501K1 MS24525-21 8502K1 ON NONE OFF -22 K9 -22 K9 -22 K9 ON NONE ON -23 K4 -23 K4 -23 K4 ON OFF NONE -24 K6 -24 K6 -24 K6 ON NONE ON* MS24523-26 8500K5 MS24524-26 8501K5 MS24525-26 8502K5 * ON OFF ON* -27 K2 -27 K2 -27 K2 NONE OFF ON* -28 K7 -28 K7 -28 K7 ON NONE OFF* -29 K10 -29 K10 -29 K10 OFF NONE ON* -30 K11 -30 K11 -30 K11 ON OFF ON* MS24523-31 8500K3 MS24524-31 8501K3 MS24525-31 8502K3 * ON ON NONE -32 K12 -32 K12 -32 K12 ON ON NONE -33 K13 -33 K13 -33 K13 ON ON ON MS27407-1 8501K14 MS27406-1 8502K15 ON ON ON* -2 K15 -2 K16 * ON ON ON* -3 K16 -3 K17 ON ON ON -4 K17 ON ON ON* -5 K18 * ON ON ON* -6 K19 * Momentary contact. See page A71 for circuit diagrams. A20 43MILITARY - ENVIRONMENTALLY SEALED SWITCHES Series - 8500, 8501, 8502 MIL-DTL-3950 Toggle Switches MOUNTING DIMENSIONS - ONE POLE / 8500 .432 10,97 KEYWAY 33 .240 DIA. 6,10 16.5 15/32-32 UN-2A THREAD TO WITHIN .060 1,52 OF SHOULDER 6-32 TERMINAL SCREW WITH INTERNAL TOOTH LOCKWASHER (SEMS) .380 .380 9,65 9,65 1.270 MAX 32,26 Terminal Identification .432 MOUNTING DIMENSIONS - TWO POLE / 8501 10,97 KEYWAY .240 DIA. 33 6,10 16.5 15/32-32 UN-2A THREAD TO WITHIN .060 1,52 OF SHOULDER 6-32 TERMINALSCREW WITH INTERNAL TOOTH LOCKWASHER (SEMS) .380 .380 STANDARD 9,65 9,65 0.00 = inches 1.340 MAX 34,04 0,0 = mm Terminal Identification Mounting dimensions for reference only. Non-functional terminals not supplied. A21 .250 6,35 .130 .250 3,30 6,35 1 14 2 3 25 36 .130 .076 .380 3,30 1.18 .470 .690 .635 1,93 MAX MAX 9,65 16,13 29,9 11,94 17,53 .076 1.100 .470 .690 MAX 1,93 27,94 11,94 17,53 .910 MAX 1.370 23,11 MAX 34,80