
Series—8866-8869 MIL-S-8834 Miniature Positive Action Switches
Solder Lug Terminals
MINIATURE POSITIVE ACTION SWITCHES
SELECTION TABLE
• Sealed bushing
• Current rating versatility
• 1, and 2 pole circuitry
• Non-teasible mechanism for all but
center “ON” circuits
• Dry circuit (logic level loads) to power
switching levels
• Wiping action contacts
• Positve make and break action
• Small and large size bushings
and actuators
• Solder lug terminals
• Also available with locking actuators,
integrated wire termination and printed
circuit board terminals.
• 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 mechanical life
• “O” ring panel seal on 1/4"-40 type
bushing size
• Solder lug terminals .050 [1,27] dia. hole
*
*
*
*Momentary contact.
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.
②Caution should be exercised during soldering and flux removal. See page 62 for details.
CIRCUIT WITH LEVER IN...
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 8866 Maintained and 5 1 1 – 2 3 1 2
and 8868 Momentary
2 8867 Maintained and 5 1 1 – 2 3 1 2
and 8869 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
8 8 6 6
8 8 6 7
Up Center Down
Position Position Position (Keyway) M i l i t a r yC a t a l o g
Part Number N u m b e r②
ONE POLE
ON OFF ON MS24655-211 8866K1
ON NONE OFF -221 K7
ON NONE ON -231 K4
ON OFF NONE -241 K5
ON OFF ON*MS24655-271 8866K2
NONE OFF ON*-281 K6
ON OFF ON*-311 K3
NONE ON ON*-321 K8①
TWO POLE
ON OFF ON MS24656-211 8867K1
ON NONE OFF -221 K7
ON NONE ON -231 K4
ON OFF NONE -241 K5
ON OFF ON*MS24656-271 8867K2
NONE OFF ON*-281 K6
ON OFF ON*-311 K3
NONE ON ON*MS24656-321 8867K8①
ON ON ON -331 K9①
ON ON ON*-351 K10①
ON ON ON*-341 K11①