no. of poles catalog number type of operation 1 8500 maintained 5 20 15 3 15 10 momentary 4 15 10 2 15 7 2 8501 maintained 7 20 15 4 15 15 momentary 5 18 10 2 11 8 4 8502 maintained 5 20 12 4 15 15 momentary 4 18 10 2 11 8 minimum rating: "intermediate current" per mil-s-3950. 28vdc 115 vac 60 or 400hz lamp load resistive load inductive load lamp load resistive load inductive load a20 eaton corporation aerospace tf300-5 june, 2004 s t a n d a r d l e v e r s e l e c t i o n t a b l e 8500 8501 8502 up position center position down position (keyway) on on on on on on * on none on off on * on on on on * on on on * on 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 * 8500k1 k9 k4 k6 k8 8500k5 k2 k7 k10 k11 8500k3 k12 k13 ms24523-21 -22 -23 -24 -25 ms24523-26 -27 -28 -29 -30 ms24523-31 -32 -33 ms24524-21 -22 -23 -24 -25 ms24524-26 -27 -28 -29 -30 ms24524-31 -32 -33 ms27407-1 -2 -3 -4 -5 -6 8501k1 k9 k4 k6 k8 8501k5 k2 k7 k10 k11 8501k3 k12 k13 8501k14 k15 k16 k17 k18 k19 ms24525-21 -22 -23 -24 -25 ms24525-26 -27 -28 -29 -30 ms24525-31 -32 -33 ms27406-1 -2 -3 8502k1 k9 k4 k6 k8 8502k5 k2 k7 k10 k11 8502k3 k12 k13 8502k15 k16 k17 catalog number ms part number ms part number catalog number catalog number ms part number * momentary contact. see page a71 for circuit diagrams. military - environmentally sealed switches series - 8500, 8501, 8502 mil-s-3950 toggle switches f e a t u r e s ? environmentally sealed ? 1, 2 and 4 pole circuitry ? 2 & 3 position with maintained and momentary action ? molded-in terminal inserts and terminal numbers s p e c i f i c a t i o n s ? 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 c u r r e n t r a t i n g s circuit with lever in . . . one pole two pole four pole minimum rating: intermediate current per mil-s-3950
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