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
Mi ni m um Rat i ng: "Int erm edi at e Current " per M IL-S-3950.
28VDC
115 V AC
60 or 400Hz
Lamp
Load
Resistive
Load
Inductive
Load
Lamp
Load
Resistive
Load
Inductive
Load
A20 EATON CORPORATION Aerospace TF300-5 June, 2004
STANDARD LEVER SELECTION TABLE
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
FEATURES
• Environmentally sealed
• 1, 2 and 4 pole circuitry
• 2 & 3 position with maintained and
momentary action
• Molded-in terminal inserts and
terminal numbers
SPECIFICATIONS
• 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: -85°F to +160°F
(-65°C to +71°C)
• Life: 20,000 operations at rated load
40,000 operations mechanical life
CURRENT RATINGS
CIRCUIT WITH LEVER IN . . . ONE POLE TWO POLE FOUR POLE
Minimum Rating: “Intermediate Current” per MIL-S-3950
