
EATON CORPORATION Aerospace TF300-5D July 2009
A27
CURRENT RATINGS FOR -16
No. of
Poles
Catalog
Number
Type of
Operation
28VDC
115VAC
60 or 400Hz
Lamp
Load
Resistive
Load
Inductive
Load
Lamp
Load
Resistive
Load
Inductive
Load
1
8570
Maintained
5
20
15
3
15
10
Momentary
4
15
10
2
15
7
2
8571
Maintained
7
20
15
4
15
Momentary
5
18
10
2
11
8
4
8572
Maintained
5
20
12
4
15
Momentary
4
18
10
2
11
8
STANDARD LEVER SELECTION TABLE — Terminals Accept Wire Contact Within Dimensional Limits of M39029/1-102 for -16 wire size.
— Terminals Accept Wire Contact Within Dimensional Limits of M39029/1-101 for -20 wire size.
8570
8571
8572
Up
Position
Center
Position
Down Position
(Keyway)
ON
* ON
NONE
ON
OFF
ON
* ON
ON
* ON
ON
* ON
NONE
ON
OFF
ON
* ON
ON
* ON
OFF
NONE
OFF
*
NONE
OFF
NONE
OFF
ON
OFF
NONE
OFF
*
NONE
OFF
NONE
OFF
ON
OFF
ON
NONE
ON
*
ON
*
ON
*
OFF
*
ON
*
ON
*
NONE
ON
*
ON
*
ON
OFF
ON
NONE
ON
*
ON
*
ON
*
OFF
*
ON
*
ON
*
NONE
ON
*
ON
*
MS27722-21
-22
-23
-24
-25
MS27722-26
-27
-28
-29
-30
MS27722-31
-32
-33
—
MS27784-21
-22
-23
-24
-25
MS27784-26
-27
-28
-29
-30
MS27784-31
-32
-33
—
8570K1-16
K9-16
K4-16
K6-16
K8-16
8570K5-16
K2-16
K7-16
K10-16
K11-16
8570K3-16
K12-16
K13-16
—
8570K1-20
K9-20
K4-20
K6-20
K8-20
8570K5-20
K2-20
K7-20
K10-20
K11-20
8570K3-20
K12-20
K13-20
—
MS27723-21
-22
-23
-24
-25
MS27723-26
-27
-28
-29
-30
MS27723-31
-32
-33
MS27723-1
-2
-3
MS27785-21
-22
-23
-24
-25
MS27785-26
-27
-28
-29
-30
MS27785-31
-32
-33
MS27785-1
-2
-3
8571K1-16
K9-16
K4-16
K6-16
K8-16
8571K5-16
K2-16
K7-16
K10-16
K11-16
8571K3-16
K12-16
K13-16
8571K17-16
K18-16
K19-16
8571K1-20
K9-20
K4-20
K6-20
K8-20
8571K5-20
K2-20
K7-20
K10-20
K11-20
8571K3-20
K12-20
K13-20
8571K17-20
K18-20
K19-20
MS27724-21
-22
-23
-24
-25
MS27724-26
-27
-28
-29
-30
MS27724-31
-32
-33
MS27724-1
-2
-3
MS27786-21
-22
-23
-24
-25
MS27786-26
-27
-28
-29
-30
MS27786-31
-32
-33
MS27786-1
-2
-3
8572K1-16
K9-16
K4-16
K6-16
K8-16
8572K5-16
K2-16
K7-16
K10-16
K11-16
8572K3-16
K12-16
K13-16
8572K15-16
K16-16
K17-16
8572K1-20
K9-20
K4-20
K6-20
K8-20
8572K5-20
K2-20
K7-20
K10-20
K11-20
8572K3-20
K12-20
K13-20
8572K15-20
K16-20
K17-20
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 - 8570, 8571, 8572
MIL-S-3950 IWTS Switches
FEATURES
Environmentally sealed
1, 2 and 4 pole circuitry
2 & 3 position with maintained and
momentary action
Integrated Wire Termination System
(IWTS) for ease of wiring
Terminal numbers molded into
silicone base seal
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)
Accepts MIL-C-39029/1-101 pin
Life: 20,000 operations at rated load
40,000 operations mechanical life
CURRENT RATINGS
TWO POLE
FOUR POLE
ONE POLE
CIRCUIT WITH LEVER IN . . .
CURRENT RATINGS FOR -20
No. of
Poles
Catalog
Number
Type of
Operation
28VDC
115VAC
60 or 400Hz
Lamp
Load
Resistive
Load
Inductive
Load
Lamp
Load
Resistive
Load
Inductive
Load
1
8570
Maintained
5
7.5
3
7.5
Momentary
4
7.5
2
7.5
7
2
8571
Maintained
7.5
4
7.5
Momentary
5
7.5
2
7.5
4
8572
Maintained
5
7.5
4
7.5
Momentary
4
7.5
2
7.5
CURRENT RATINGS