MINIATURE POSITIVE ACTION SWITCHES Series--8855, 8856, 8866-69 FEATURES MIL-S-8834 Miniature Positive Action Switches Toggle and Lever Lock/ IWTS Terminals SPECIFICATIONS * Sealed bushing * Dry circuit (logic level loads) to power switching levels * 1 and 2 pole circuitr y * Non-teasible mechanism for all but center "ON" circuit * Small and large size bushings and actuators * Toggle and lever lock actuators * Wiping action contacts * Positive make and break action * Integrated wire termination system (IWTS) CURRENT RATINGS * Bushing seal or bonded seal per MIL-S-8834 * MS approved and QPL listed to MIL-S-8834 * Temperature range: -67F to +160F (-55C to +71C) * Life: 20,000 operations at rated load 40,000 operations mechanical life * Bushing thread sizes: Small Toggle: 1/4" - 40 thread Large Toggle and Lever Lock: 15/32"- 32 thread * Accepts MIL-C-39029/1-101 Pin 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 8866 and 5 8868 Momentary 2 8856 Maintained 8867 and 5 8869 Momentary Minimum Rating: 25 A at 5 millivolts. 1 1 - 2 3 1 2 1 1 - 2 3 1 2 SELECTION T ABLE 8868 Lar ge Lever CIRCUIT WITH LEVER IN... Up Position Center Position 8866 Small Lever 8869 Lar ge Lever ONE POLE 8867 Small Lever TWO POLE Down Position (Keyway) MS Part Number Catalog Number Large Lever Small Lever 8868K51 8866K51 K57 K57 K54 K54 K55 K55 8868K52 8866K52 K56 K56 K53 K53 K58 K58 - - - - - - MS Part Number Catalog Number Large Lever Small Lever 8869K51 8867K51 K57 K57 K54 K54 K55 K55 8869K52 8867K52 K56 K56 K53 K53 8869K58 8867K58 K59 K59 K510 K510 K511 K511 MS Part Number ON OFF ON MS21346-211 MS21347-211 MS2134-711 ON NONE OFF -221 -221 -721 ON NONE ON -231 -231 -731 ON OFF NONE -241 -241 -741 MS21346-271 MS21347-271 MS21347-771 ON OFF ON NONE OFF ON -281 -281 -781 ON OFF ON -311 -311 -811 MS21346-321 MS21347-321 MS21347-821 NONE ON ON ON ON ON - -331 -831 ON ON ON - -351 -851 ON ON ON - -341 -841 Momentary contact. 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.) * * * * * * * * * Catalog Number 8869K51X K57X K54X K55X 8869K52X K56X K53X 8869K58X K5 9X K510X K511X MINIATURE POSITIVE ACTION SWITCHES Series--8855, 8856, 8866-69 MIL-S-8834 Miniature Positive Action Switches Toggle and Lever Lock/ IWTS Terminals SELECTION T ABLE 8855 CIRCUIT WITH LEVER IN... Up Position ON ON ON ON ON ON ON ON ON ON ON ON NONE ON ON ON Center Position OFF OFF OFF NONE NONE OFF NONE NONE OFF OFF OFF OFF OFF OFF OFF ON 8856 ONE POLE Down Position (Keyway) ON ON NONE OFF ON ON OFF ON ON ON ON NONE ON ON ON ON * * * * * * Lever Lock Bushing Style A B B C C D E E F G H J K K L A MS Part Number MS21346-A211 -B211 -B241 -C221 -C231 MS21346-D211 -E221 -E231 -F271 -G311 MS21346-H271 -J241 -K281 -K311 -L311 TWO POLE Catalo g Number 8855K54 K55 K519 K513 K57 8855K510 K514 K58 K515 K516 8855K517 K59 K518 K520 K512 contact. * Momentary Indicates direction against which lever is locked. See page 77 for special circuit diagrams. OPTIONS/ACCESSORIES * Special mounting hardware * Special marking * Mounting hardware furnished assembled * Panel seal, Part Number 32-341 (15/32"- 32 bushing only) * Special circuits * Special bushing and lever finish * Special locking cap style on lever lock switches * EMI/RFI capability on two pole (15/32" - 32 bushing only) LEVER LOCK - BUSHING STYLES PANEL CUTOUT DIMENSIONS MS Part Number MS21347-A211 -B211 -B241 -C221 -C231 MS21347-D211 -E221 -E231 -E271 -G311 MS21347-H271 -J241 -K281 -K311 -L311 Catalo g Number 8856K54 K55 K519 K513 K57 8856K510 K514 K58 K515 K516 8856K517 K59 K518 K520 K512 8856K527 MINIATURE POSITIVE ACTION SWITCHES Series--8855, 8856, 8866-69 MIL-S-8834 Miniature Positive Action Switches Toggle and Lever Lock/ IWTS Terminals MOUNTING DIMENSIONS--ONE POLE / 8855, 8866, 8868 Small T oggle Large Toggle / Terminal Identification Lever Lock MOUNTING DIMENSIONS--TWO POLE / 8856, 8867, 8869 STANDARD 0.00 = inches [0,0] = mm Small T oggle Mounting dimensions for reference only. Large Toggle / Terminal Identification Lever Lock