ENVIRONMENT-FREE SEALED
SEALED AGAINST IMMERSION & CORROSIVE ATMOSPHERES
SEALED LIMIT
SWITCHES
P6
P6 series switches are sealed against immersion and corrosive
atmospheres. These switches are designed for rugged duty both
mechanically and electrically. A one-piece stainless steel or
nickel plated brass housing, sealed at the plunger with an O-ring
seal and at the base with a glass-to-metal header option provides
true environment-free sealing to comply with MIL-PRF-8805/39,
MIL-PRF-8805/40, MIL-PRF-8805/43, MIL-PRF-8805/100 and MIL-
PRF-8805/104. Most case parts are grounded for EMI reduction.
The P6 series is available with roller plunger styles for cam or
slide actuation and pin plunger for in-line actuation. Contact
factory for additional designs.
P6 series features the OTTO B2, B3 or B5 series snap-action
basic switch. High contact pressure and unique contact design
provides low contact resistance for low level switching as well
as full rated service.
Stainless Steel
Plunger/Brass Actuator
Ice Scraper Ring
LIMIT SWITCHES
One Piece
Stainless Steel
Housing
“O” Ring Seal
Basic Switches
Glass to Metal
Header Plate
Inert Gas Filled
Switching Chamber
Features:
•
•
•
•
•
•
•
•
Complies with MIL-PRF-8805 sealing
One-piece housing
Sealed at plunger with O-rings
Sealed at base with a glass seal
EMI reduction construction
Choice of pin or roller plunger
Choice of axial or radial leads
Reach compliant
Solder Joint
Epoxy Potting
Cross section example of OTTO P6-24XXX series.
Specifications Subject To Change Without Notice
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80
SEALED LIMIT SWITCHES
FEATURING OTTO B2 & B3 SERIES BASIC SWITCHES
SPECIFICATIONS: Standard Models
ELECTRICAL RATINGS:
Load
Sea Level @ 28VDC
7A
4A
4A
1000Vrms
50,000 feet @ 28VDC
7A
2.5A
(4A)
400Vrms
Electrical Life:
Low Level Life:
Contact Resistance:
Operating Force:
Overtravel Force:
Release Force:
25,000 cycles
25,000 cycles
Per MIL-PRF-8805
6.0 lbs. to 12.0 lbs. standard.
Other forces available.
30.0 lbs. max
4.0 lbs. min
0.040 inches
0.070 inches
0.050 inches
0.020 inches
0.035 inches
0.030 inches
0.250 inches
0.125 inches
SEALED LIMIT
SWITCHES
P6
1
4
2PDT Schematic
2
3
5
6
RATING TABLE 1
Resistive
Inductive
Motor
DWV
RATING TABLE 2
Resistive
Inductive
Motor
Lamp
DWV
7A
2A
4A
2A
1250Vrms
7A
2A
4A
1A
600Vrms
Pretravel:
MIL-PRF-8805/39, /40, /43:
MIL-PRF-8805/100:
MIL-PRF-8805/104:
Movement Differential:
MIL-PRF-8805/39, /40, /43:
MIL-PRF-8805/100:
MIL-PRF-8805/104:
Overtravel:
MIL-PRF-8805/39, /40, /100:
MIL-PRF-8805/43, /104:
1
2
3
5
RATING TABLE 3
Resistive
Inductive
Motor
DWV
4A
2A
4A
1000Vrms
4A
2A
4A
400Vrms
Wire Type:
Per MIL-W-22759/7
Marked per MIL-W-5088.
Standard length: 6 feet. Other lengths available.
Operating Temp Range:
-55°C to 85°C
Mounting/Termination:
Bushing mounting with positive, non-turn features.
Wire leads potted at terminal base for strain relief
and added insulation. Each wire is marked with
circuit identification.
For specific details not shown above, please consult
the appropriate military specification sheet or OTTO’s
product drawing.
4
LIMIT SWITCHES
7
10
4PDT Schematic
6
8
9
11
12
RATING TABLE 4
Load Type
Resistive
Inductive
DWV
Power Circuit
1A
0.5A
Elex Logic
0.01A
N/A
1000Vrms
Low Level
0.01A
N/A
Power Circuit Elex Logic
1A
0.01A
0.5A
400Vrms
N/A
Circuitry
Plunger/Lead
Exit Style
Dim. A
Free Position
(inches +/- 0.030)
1.375
1.375
1.375
0.875
0.875
1.295
1.295
0.875
0.875
1.295
1.295
1.375
1.375
1.781
1.781
1.375
1.375
1.781
1.781
1.375
1.719
1.375
1.719
Dim. B
Bushing Length
(inches +/- 0.030)
1.000
1.000
1.000
0.625
0.625
N/A
N/A
0.625
0.625
N/A
N/A
1.000
1.000
0.794
0.794
1.000
1.000
0.794
0.794
1.000
0.895
1.000
0.895
Dim. C
Thread
(inches)
0.625-24
0.625-24
0.625-24
0.469-32
0.469-32
0.469-32
0.469-32
0.469-32
0.469-32
0.469-32
0.469-32
0.625-24
0.625-24
0.625-24
0.625-24
0.625-24
0.625-24
0.625-24
0.625-24
0.469-32
0.469-32
0.469-32
0.469-32
Dim. D
Body Dia.
(max inches)
0.720
1.031
1.015
0.720
1.031
0.720
1.031
0.720
1.031
0.720
1.031
1.030
1.030
0.925
1.030
1.030
1.030
1.030
1.030
0.850
0.850
0.850
0.850
Dim. E
Body Length
(max inches)
0.980
1.200
0.980
1.000
1.200
1.000
1.200
1.000
1.200
1.000
1.200
1.100
1.200
1.100
1.200
1.100
1.200
1.100
1.200
1.100
1.100
1.100
1.200
Electrical
Rating
Table
1
1
3
1
1
1
1
4
4
4
4
2
2
2
2
2
2
2
2
2
2
2
2
Military
Number
Catalog
Number
MIL-PRF-8805/39
2PDT
4PDT
A-Pin/Radial
A-Pin/Radial
A-Pin/Radial
A-Pin/Radial
A-Pin/Radial
B-Roller/Radial *
B-Roller/Radial *
A-Pin/Radial
A-Pin/Radial
B-Roller/Radial *
B-Roller/Radial *
A-Pin/Radial
C-Pin/Axial
B-Roller/Radial **
D-Roller/Axial **
A-Pin/Radial
C-Pin/Axial
B-Roller/Radial **
D-Roller/Axial **
A-Pin/Radial
B-Roller/Radial *
C-Pin/Axial
D-Roller/Axial *
MS21321-1
MS21321-2
MS24331-1
MS27240-1
MS27240-2
MS27240-3
MS27240-4
MS27240-5
MS27240-6
MS27240-7
MS27240-8
MIL-PRF-8805/100-007
MIL-PRF-8805/100-008
MIL-PRF-8805/100-009
MIL-PRF-8805/100-010
MIL-PRF-8805/100-015
MIL-PRF-8805/100-016
MIL-PRF-8805/100-017
MIL-PRF-8805/100-018
MIL-PRF-8805/104-001
MIL-PRF-8805/104-002
MIL-PRF-8805/104-003
MIL-PRF-8805/104-004
P6-24000
P6-24001
P6-24002
P6-24003
P6-24004
P6-14000
P6-14001
P6-24005
P6-24006
P6-14002
P6-14003
P6-24043
P6-24044
P6-14035
P6-14036
P6-24007
P6-24008
P6-14005
P6-14006
P6-20001
P6-10002
P6-20002
P6-10003
MIL-PRF-8805/40
2PDT
MIL-PRF-8805/43
2PDT
4PDT
2PDT
4PDT
2PDT
4PDT
2PDT
4PDT
MIL-PRF-8805/100
4PDT
4PDT
4PDT
4PDT
4PDT
4PDT
4PDT
4PDT
MIL-PRF-8805/104
4PDT
4PDT
4PDT
4PDT
*
Roller diameter is 0.375 inches.
**
Roller diameter is 0.500 inches.
Specifications Subject To Change Without Notice
NOTE: SEE MILITARY QPL CROSS REFERENCE LISTING IN APPENDIX.
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