Down
Up Center P o s i t i o n Standard Cap Style Mushroom Cap Style
Position Position ( K e y w a y ) Lever Lock ①M S M S M S M S
B u s h i n g Part C a t a l og②P a rt③C a t a l og②P a r t C a t a l o g②P a rt③C a t a l og②
S t y l e N u m b e r N u m b e r N u m b e r N u m b e r N u m b e r N u m b e r N u m b e r N u m b e r
ONE POLE
ON
➜
OFF
➜
ON A MS21026-A211 8855K4 Feature MS21436-A211 8855K74 Feature
ON OFF
➜
ON B -B211 K5 Not Available -B211 K75 Not Available
ON OFF
➜
NONE B -B241 K19 In Single Pole -B241 K719 In Single Pole
ON NONE OFF C -C221 K13 Switches -C221 K713 Switches
ON NONE ON C -C231 K7 -C231 K77
ON OFF ON D MS21026-D211 8855K10 MS21436-D211 8855K710
ON
➜
NONE OFF E -E221 K14 -E221 K714
ON
➜
NONE ON E -E231 K8 -E231 K78
ON OFF
➜
ON
*
F -F271 K15 -F271 K715
ON OFF
➜
ON
*
G -G311 K16 -G311 K716
ON OFF ON
*
H MS21026-H271 8855K17 MS21436-H271 8855K717
ON
➜
OFF NONE J -J241 K9 -J241 K79
NONE OFF
➜
ON
*
K -K281 K18 -K281 K718
ON OFF
➜
ON
*
K -K311 K20 -K311 K720
ON OFF ON
*
L -L311 K12 -L311 K712
TWO POLE
ON
➜
OFF
➜
ON A MS21027-A211 8856K4 MS21027-A711 8856K4X MS21437-A211 8856K74 MS21437-A711 8856K74X
ON OFF
➜
ON B -B211 K5 -B711 K5X -B211 K75 -B711 K75X
ON OFF
➜
NONE B -B241 K19 -B741 K19X -B241 K719 -B741 K719X
ON NONE OFF C -C221 K13 -C721 K13X -C221 K713 -C721 K713X
ON NONE ON C -C231 K7 -C731 K7X -C231 K77 -C731 K77X
ON OFF ON D MS21027-D211 8856K10 MS21027-D711 8856K10X MS21437-D211 8856K710 MS21437-D711 8856K710X
ON
➜
NONE OFF E -E221 K14 -E721 K14X -E221 K714 -E721 K714X
ON
➜
NONE ON E -E231 K8 -E731 K8X -E231 K78 -E731 K78X
ON OFF
➜
ON
*
F -F371 K27 -F871 K27X -F371 K727 -F871 K727X
ON OFF
➜
ON
*
G -G311 K16 -G811 K16X -G311 K716 -G811 K716X
ON OFF ON
*
H MS21027-H371 8856K29 MS21027-H871 8856K29X MS21437-H371 8856K729 MS21437-H871 8856K729X
ON
➜
OFF NONE J -J241 K9 -J741 K9X -J241 K79 -J741 K79X
NONE OFF
➜
ON
*
K -K381 K28 -K881 K28X -K381 K728 -K881 K728X
ON OFF
➜
ON
*
K -K311 K20 -K811 K20X -K311 K720 -K811 K720X
ON OFF ON
*
L -L311 K12 -L811 K12X -L311 K712 -L811 K712X
ON
➜
ON
➜
ON A MS21027-A331 8856K21①MS21027-A831 8856K21X①MS21437-A331 8856K721①MS21437-A831 8856K721X①
ON ON
➜
ON B -B331 K30①-B831 K30X①-B331 K730①-B831 K730X①
ON ON ON C -C331 K31①-C831 K31X①-C331 K731①-C831 K731X①
ON ON ON D -D331 K32①-D831 K32X①-D331 K732①-D331 K732X①
ON ON
➜
ON
*
F -F341 K22①-F841 K22X①-F341 K722①-F841 K722X①
ON ON ON
*
H MS21027-H341 8856K34①MS21027-H841 8856K34X①MS21437-H341 8856K734①MS21437-H841 8856K734X①
NONE ON
➜
ON
*
K -K321 K24①K821 K24X①-K321 K724①-K821 K724X①
ON ON
➜
ON
*
G -G351 K35①G851 K35X①-G351 K735①-G851 K735X①
ON ON
➜
ON
*
K -K351 K23①-K851 K23X①-K351 K723①-K851 K723X①
ON ON ON
*
L -L351 K36①-L851 K36X①-L351 K736①-L851 K736X①
①
Reference bushing styles on Page 65.
Series—8855, 8856 MIL-S-8834 Miniature Positive Action Switches
Lever Lock/Solder Lug Terminals
MINIATURE POSITIVE ACTION SWITCHES
• 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
• Bushing seal or bonded seal per MIL-S-8834
• MS approved and QPL’d to MIL-S-8834
• Temperature range: -67°F to +160°F
(-55°C to +71°C)
• Life: 20,000 operations at rated load
40,000 operations mechanical life
• Solder lug terminal .050 [1,27] dia. hole
No. of C a t a l o g Type of 28 and 50VDC
1 1 5 VAC 60Hz and 400H z
P o l e s N u m b e r O p e r a t i o n (Amperes per pole) (Amperes per pole)
R e s i s t i v e I n d u c t i v e R e s i s t i v e I n d u c t i v e
L o a d L o a d L o a d L o a d
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 µA at 5 millivolts.
F E AT U R E S S P E C I F I C AT I O N S CURRENT RAT I N G S
S TANDARD CAP STYLE MUSHROOM CAP STYLE
SELECTION T A B L E
*
*
*
*
*
*
8 8 5 68 8 5 5 8 8 5 68 8 5 5
CIRCUIT WITH LEVER IN...
ONE POLE BONDED SEAL BONDED SEAL
TWO POLE BONDED SEAL BONDED SEAL
*Momentary contact.
➜Indicates direction against which lever is locked.
See page 77 for special circuit diagrams.
①Dielectric 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.
②Furnished with Bonded Seal Feature. (Meets with 15’ head of water level.)
③Not military MS approved.
Series—8855, 8856 MIL-S-8834 Miniature Positive Action Switches
Lever Lock/Solder Lug Terminals
Mounting dimensions for
reference only.
Non-functional terminals
not supplied.
STANDARD
0.00 = inches
[0,0] = mm
Standard Cap Style Terminal Identification Mushroom Cap Style
Standard Cap Style Terminal Identification Mushroom Cap Style
MINIATURE POSITIVE ACTION SWITCHES
MOUNTING DIMENSIONS—ONE POLE / 8855
MOUNTING DIMENSIONS—TWO POLE / 8856
O P T I O N S / A C C E S S O R I E S PANEL CUTOUT DIMENSIONS
• 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
Series—8855, 8856 MIL-S-8834 Miniature Positive Action Switches
Lever Lock/Solder Lug Terminals
MINIATURE POSITIVE ACTION SWITCHES
• 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
O P T I O N S / A C C E S S O R I E S LEVER LOCK – BUSHING STYLES
