D20419-80 Datasheet, PDF (196/386 Pages) ITT Industries – Military/Aerospace

Waterproof Connectors
MR
Cannon's MR waterproof connectors, designed to
meet the requirements of MIL-C-5015, withstand
condictions involving mud, ice, and water. They are
particularly suited for missile ground support equip-
ment, radar installations, heavy construction in-
stallations, and outdoor applications involving rapid
transit, radio/tv stations, and marine equipment.
Maximum resistance to severe enviornmental con-
ditions is assured by an O-ring seal around the
mated insert faces, and a gland seal at the cable
entry which provides a cable strain reflief as well.
When properly terminated to a jacketed cable, a
mated pair of MR connectors can be immersed in
depths of 150 feet in fresh water. For other
immersion media consult factory.
The MR connector series is supplied with
MIL-C-5015 resilient insulators and solder pot con-
tacts. For crimp type contacts refer to the ordering
information below. MS contact arrangements, cou-
pling threads, and sizes are standard to
MIL-C-5015. Simple maintenance under severe
conditions is possible with a convenient, long,
knurled coupling nut and endbell that can be easily
removed by standard open end wrenches. Dust caps
have attached head chains to prevent kinking.
Operating temperature range of connectors - 55˚C
(-67˚F) to 125˚C (257˚F). The upper temperature
is the maxiumu internal hot spot temperature
resulting from any combination of eletrical load
and ambient temperature.
Performance and Material Specifications
MATERIALS
Shell - Aluminum alloy
Insulator - Synthetic elastomer
Contacts - Copper alloy
FINISHES
Shell - Clear anodized
Contacts - Silver plate
MECHANICAL FEATURES
Shell Styles
00 - Wall Mounting Receptacle
01 - Cable Connecting Receptacle
02 - Chassis Mounting Receptacle
06 - Cable Connecting Straight Plug
Shell Size - 14S thru 36
Coupling - Threaded
Cable Entry - 00, 01, and 06 accommodate
cables from - 3 (3/16") to -28 (1-3/4") in
sixteenths of an inch. Shell style 02 requires
no jacketed cable seal.
Polarization - Single keyway
ELECTRICAL DATA
Number of Contacts - 1 thru 66
TEST CURRENT
Maximum current ratings of contacts and
maximum allowable voltage drop under test
conditions when assembled as in service are
shown below. Maximum total current to be
carried per connector is the same as the
allowable in wire bundles as specified in
MIL-W-5088.
Contact
Size
16
12
8
4
0
Test Current
(Amps)
20
35
60
110
200
Potential Drop
(millivolts)
21
20
12
10
10
HIGH POTENTIAL TEST VOLTAGE
MS connectors show no evidence of breakdown
when the test voltage given below is applied
between the two closest contacts and between
the shell and the contact closest to the shell for
a period of one minute.
MS Test Voltage
Service (rms)
Rating 60 cps
Suggested
Operating Voltage*
DC
AC (rms)
Air
Spacing
nom. in.
Inst.
1000
250
200
-
A
2000
700
500
1/16
D
2800
1250
900
1/8
E
3500
1750
1250
3/16
B
4500
2450
1750
1/4
C
7000
4200
3000
5/16
* As indicated in MS Specifications and to be used by the
designer only as a guide
How to Order
SERIES PREFIX
MR - Resilient Insulator
SHELL STYLE
00 - Wall Mounting Receptacle
01 - Cable Connecting Receptacle
02 - Chassis Mounting Receptacle
06 - Cable Connecting Straight Plug
SHELL SIZE
14S, 16S, 18, 20, 22, 24, 28, 32, and 36
CONTACT ARRANGEMENTS
1 to 56 contacts
(See pages 171-174 for MSE/R)
SERIES PREFIX
SHELL STYLE
SHELL SIZE
CONTACT ARRANGEMENTS
CONTACT TYPE
ALTERNATE INSERT POSITION
CABLE ENTRY
MODIFICTATIONS
CONTACT TYPE
P for Pin; S for socket
ALTERNATE INSERT POSITION
W, X, Y, and Z per MIL-C-5015
CABLE ENTRY
00, 01, and 06 shell styles accommodate cables
from - 3 (3/16") to - 28 (1-3/4") graduated
in sixteenths of an inch. The 02 shell style
requires no jacketed cable seal.
MR 06 28 12 P X 18 *
MODIFICATIONS
FO - Less contacts
A66 - Olive drab cadmim
A105 - Clear Cadmium
F80 - Crimp contacts
F111 - Stainless steel 303 hardware & link
chain (F135)
F135 - Stainless steel link chain
F150 - Less dust cap and chain
For other modifications, such as cable grips and
peripheral ground adapters, consult the factory.
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
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