MINIATURE POSITIVE ACTION SWITCHES Series--8855, 8856 FEATURES MIL-S-8834 Miniature Positive Action Switches Lever Lock/Solder Lug Terminals SPECIFICATIONS * Sealed bushing * Dry circuit (logic level loads) to power switching levels * 1, and 2 pole circuitry * Non-teasible mechanism for all but center "ON" circuits * High electrical/mechanical reliability * Two styles of lever lock actuators * Locking actuator for safety * Wiping action contacts * Positive make and break action * Solder lug termination SELECTION T ABLE CURRENT RATINGS * Bushing seal or bonded seal per MIL-S-8834 * MS approved and QPL'd to MIL-S-8834 * Temperature range: -67F to +160F (-55C to +71C) * Life: 20,000 operations at rated load 40,000 operations mechanical life * Solder lug terminal .050 [1,27] dia. hole No. of Catalog Poles Number Type of Operation 28 and 50VDC 115VAC 60Hz and 400Hz (Amperes per pole) (Amperes per pole) Resistive Inductive Resistive Inductive Load Load Load Load 28VDC 50VDC 28VDC 50VDC 60Hz 400Hz 60Hz 400Hz 1 8855 Maintained and 5 1 1 - 2 3 1 2 Momentary 2 8856 Maintained and 5 1 1 - 2 3 1 2 Momentary Minimum Rating: 25 A at 5 millivolts. Momentary contact. Indicates direction against which lever is locked. See page 77 for special circuit diagrams. Dielectric per MIL-S-8834 except limited to 1250 volts. Delayed action of the switch toggle lever may cause circuit to close or open before snap action mechanism trips. Furnished with Bonded Seal Feature. (Meets with 15' head of water level.) Not military MS approved. * STANDARD CAP STYLE 8855 MUSHROOM CAP STYLE 8856 8855 8856 CIRCUIT WITH LEVER IN... Up Position * * * * * * Center Position Down Position (Keyway) Standard Cap Style Lever Lock Bushing Style MS Part Number Catalo g Number A B B C C D E E F G H J K K L MS21026-A211 -B211 -B241 -C221 -C231 MS21026-D211 -E221 -E231 -F271 -G311 MS21026-H271 -J241 -K281 -K311 -L311 8855K4 K5 K19 K13 K7 8855K10 K14 K8 K15 K16 8855K17 K9 K18 K20 K12 A B B C C D E E F G H J K K L A B C D F H K G K L MS21027-A211 -B211 -B241 -C221 -C231 MS21027-D211 -E221 -E231 -F371 -G311 MS21027-H371 -J241 -K381 -K311 -L311 MS21027-A331 -B331 -C331 -D331 -F341 MS21027-H341 -K321 -G351 -K351 -L351 8856K4 K5 K19 K13 K7 8856K10 K14 K8 K27 K16 8856K29 K9 K28 K20 K12 8856K21 K30 K31 K32 K22 8856K34 K24 K35 K23 K36 ONE ONEPOLE POLE ON OFF ON ON OFF ON ON OFF NONE ON NONE OFF ON NONE ON ON OFF ON NONE OFF ON ON NONE ON ON OFF ON ON OFF ON ON OFF ON ON OFF NONE NONE OFF ON ON OFF ON ON OFF ON TWO POLETWO POLE ON OFF ON ON OFF ON ON OFF NONE ON NONE OFF ON NONE ON ON OFF ON NONE OFF ON ON NONE ON ON OFF ON ON OFF ON ON OFF ON ON OFF NONE NONE OFF ON ON OFF ON ON OFF ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON NONE ON ON ON ON ON ON ON ON ON ON ON * * * * * * * * * * * * * * * * * * Reference bushing styles on Page 65. Mushroom Cap Style MS Part Number Catalo g Number MS Part Number Catalo g Number BONDED SEAL Feature Not Available In Single Pole Switches 8856K4X K5X K19X K13X K7X 8856K10X K14X K8X K27X K16X 8856K29X K9X K28X K20X K12X 8856K21X K30X K31X K32X K22X 8856K34X K24X K35X K23X K36X Catalo g Number BONDED SEAL MS21436-A211 -B211 -B241 -C221 -C231 MS21436-D211 -E221 -E231 -F271 -G311 MS21436-H271 -J241 -K281 -K311 -L311 8855K74 K75 K719 K713 K77 8855K710 K714 K78 K715 K716 8855K717 K79 K718 K720 K712 MS21437-A211 -B211 -B241 -C221 -C231 MS21437-D211 -E221 -E231 -F371 -G311 MS21437-H371 -J241 -K381 -K311 -L311 MS21437-A331 -B331 -C331 -D331 -F341 MS21437-H341 -K321 -G351 -K351 -L351 8856K74 K75 K719 K713 K77 8856K710 K714 K78 K727 K716 8856K729 K79 K728 K720 K712 8856K721 K730 K731 K732 K722 8856K734 K724 K735 K723 K736 BONDED SEAL MS21027-A711 -B711 -B741 -C721 -C731 MS21027-D711 -E721 -E731 -F871 -G811 MS21027-H871 -J741 -K881 -K811 -L811 MS21027-A831 -B831 -C831 -D831 -F841 MS21027-H841 K821 G851 -K851 -L851 MS Part Number Feature Not Available In Single Pole Switches BONDED SEAL MS21437-A711 -B711 -B741 -C721 -C731 MS21437-D711 -E721 -E731 -F871 -G811 MS21437-H871 -J741 -K881 -K811 -L811 MS21437-A831 -B831 -C831 -D331 -F841 MS21437-H841 -K821 -G851 -K851 -L851 8856K74X K75X K719X K713X K77X 8856K710X K714X K78X K727X K716X 8856K729X K79X K728X K720X K712X 8856K721X K730X K731X K732X K722X 8856K734X K724X K735X K723X K736X MINIATURE POSITIVE ACTION SWITCHES Series--8855, 8856 MIL-S-8834 Miniature Positive Action Switches Lever Lock/Solder Lug Terminals MOUNTING DIMENSIONS--ONE POLE / 8855 Standard Cap Style Terminal Identification Mushroom Cap Style Terminal Identification Mushroom Cap Style MOUNTING DIMENSIONS--TWO POLE / 8856 STANDARD 0.00 = inches [0,0] = mm Mounting dimensions for reference only. Non-functional terminals not supplied. Standard Cap Style MINIATURE POSITIVE ACTION SWITCHES Series--8855, 8856 OPTIONS/ACCESSORIES * Special mounting hardware * Special marking * Mounting hardware furnished assembled * Special locking configurations * Panel seal, Part Number 32-341 * Special circuits * Special locking cap style * Custom wire harnesses * EMI/RFI capability on two pole OPTIONS/ACCESSORIES * Special mounting hardware * Special marking * Mounting hardware furnished assembled * Special locking configurations * Panel seal, Part Number 32-341 * Special circuits * Special locking cap style * Custom wire harnesses * EMI/RFI capability on two pole * Gold plated contacts MIL-S-8834 Miniature Positive Action Switches Lever Lock/Solder Lug Terminals LEVER LOCK - BUSHING STYLES PANEL CUTOUT DIMENSIONS