Waterproof Cap for MS Connector (For Plug)

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When fitted to a straight connector, this cap prevents dust and impurities from entering the mating part when the connector is not connected, prevents accidental contact of the connector with live parts when it is not connected and ensures watertightness.

MIL
IP67

● For Straight Connector
● Prevents intrusion of dust and foreign matter to the fitting surface when connectors are not connected,
and also maintains waterproofing performance.
● It prevents accidents caused by touching live parts when not connected.
● MIL-DTL-5015 model
● IP67 Class

· It cannot be used for panel mounting or relays.

Part Number

Once your search is narrowed to one product,
the corresponding part number is displayed here.

MMS25042-16P

Product specification
Part Numbers
Standard Specifications

Specifications

Waterproof Cap for MS Connector (For Plug):Related Image

Model Number	Shell Size
Model Number	Shell Size
MMS25042-10P	10SL
MMS25042-14P	14S
MMS25042-16P	16
MMS25042-18P	18
MMS25042-20P	20
MMS25042-22P	22
MMS25042-24P	24
MMS25042-28P	28

More Information

Material

Cap	Aluminum Alloy and Zinc Cobalt Plating (Black)
Rivet	Stainless Steel
Chain	Stainless Steel

Data to be displayed: 30; 45; 60

Part Number
MMS25042-16P

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	Compatible Shell Size	Compatible Shell Size
	8.06 €	1	Available	5 Days	16S/16	16

Waterproof / Drip-proof MS Connector (MMS)

Features

● It has the waterproof and dustproof functions of IP67 class, so it can be used in harsh environments.
● It is available in 4 shapes.
○ Straight Type ○ Panel Mount Type
○ Angle Type ○ Relay Type
● For each model, a contact type that suits your purpose can be selected.
○ Male (Pin) ○ Female (Socket)
● The back shell and cable clamp are integrated, for a space-saving structure.
● Waterproofing caps for the panel mount type and the relay type are available.

Common Specifications

● Material / Finish

Item	Materials	Finish
Shell	Aluminum Alloy	Trivalent Chromate
Insulator	Chloroprene Rubber	-
Contact	Copper Alloy	Silver Plating

● Does not support key position changes.

Common Specifications

Applicable Wire Size and Contact Size

Appropriate wire coating stripping length is the dimension of the contact solder hole length (L size) plus about 1 ~ 3 mm. Please note that the L dimension and D dimension of the male connector (pin) and the female connector (socket) are the same. When selecting the cable, please check if the cable fits into the inner diameter of the cable clamp.

Contact				Compatible Electric Wire Size
Contact Size	Solder Hole Diameter φD (mm)	Pin Contact Contacting Part Diameter φA (mm)	L (mm)	AWG	Conductor Section Area mm²
#16	1.85	1.6	6.4	16 ~ 20	1.25 or less
#12	2.95	2.4	9.5	12 ~ 14	3.5 or less
#8	5.31	3.6	12.7	8 ~ 10	8 or less
#4	8.45	5.7	15.9	4 ~ 6	22 or less
#0	11.91	9.1	15.9	0 ~ 2	50 or less

Electrical Properties

Contact Resistance	Contact Size	Test Current DC	Voltage Drop	Couple the male and the female side of the connector the same way as in operating conditions, send test current, measure using the voltage drop method and fulfill the value on the left.
	#16	20 A	21 mV or lower
	#12	35 A	20 mV or lower
	#8	60 A	12 mV or lower
	#4	110 A	10 mV or lower
	#0	200 A	10 mV or lower

Mechanical Properties

	Test Category Symbol			VAC (r.m.s.)
Thermal Shock	Low Temperature			High Temperature			Carry out 5 consecutive cycles, with the low temperature and high temperature on the left as 1 cycle. The time exposed to low and high temperature must be 30 minutes or more.
	-55 +0℃ -5℃			+125 +3°C -0°C
	(1) There should be no cracks or damage in the connector. (2) After completion, the voltage resistance test should be satisfied.
Humidity Resistance	The following voltage resistance should be satisfied.						Expose the coupled connectors and panel mount to temperature 71±2°C and relative humidity 95±3% for 14 days, and then, without drying, perform the voltage resistance test in the left table for 5 minutes.
	INST			300
	A			750
	D			1,350
	E			1,875
	B			2,775
	C			4,500
Corrosion	(1) There should be no exposed metal or corrosion damaging the coupling or detachment of the connector. (2) Measurement of Contact Resistance						Expose for 48 hours to salt spray with concentration 5% and temperature 35°C; after that, wash under running water and dry for 12 hours in an air-circulating chamber at temperature of 38±3°C; finally, perform contact resistance and voltage resistance tests.
	Contact Size		Test Current		Voltage Drop (or less)
	#16		20 A		35 mV
	#12		35		30
	#8		60		25
	#4		110		20
	#0		200		20
	(3) The voltage resistance in the following table should be satisfied.
	Test Category Symbol	VAC (r.m.s.)		Category Symbol		VAC (r.m.s.)
	INST	400		E		2,500
	A	1,000		B		3,500
	D	1,800		C		6,000

Environmental Properties

Single Contact Insertion and Removal Force	Contact Size	Average	Maximum	Minimum	Insertion and removal force is measured using a randomly extracted male and female. The average force should be at or below the average values shown on the left, and 96% of all values should be at or below the maximum values and at or above the minimum values.
	#16	0.95 kg	1.36 kg	0.11 kg
	#12	1.59	2.27	0.23
	#8	3.18	4.54	0.34
	#4	4.76	6.8	0.45
	#0	6.35	9.07	0.91
Contact Retention Force	Contact Size	Axial Load (kg)	Contact Size	Axial Load (kg)	It should withstand axial load in both directions as shown on the left.
	#16	4.5	#4	9.1
	#12	6.8	#0	11.3
	#8	9.1
Vibration	(1) There should be no current cut-off of 10 μsec or more during the test. (2) After completion, the voltage resistance test should be satisfied. (3) There should be no disconnection of the coupling, cracks, damage or looseness in any part.				Connect the wired connector and the panel mount by the usual method, and perform a vibration test using MIL-STD-1344. During the test, pass 100 mA current through the connector, inspect interruption of the current by a suitable method, and perform a voltage resistance test and visual inspection.
Impact	(1) After completion, the requirements for contact resistance should be satisfied. (2) There should be no cracks, damage or looseness in any part.				Apply acceleration of 50 G at a 90° angle to each axis direction to the wired and coupled connector and panel mount.
Service Life	(1) The requirements for contact resistance should be satisfied. (2) There should be no electrical or mechanical abnormalities.				Remove the coupling nut of the connector and insert and remove it 600 times at a speed not exceeding 500 times per 1 hour.

Contact Arrangement Table (by number of cores) View from the male (pin) connector coupling surface.

Arrangement No.

The left side is the shell size of the entire connector. The right side is the arrangement number of the contact. Together these compose the Arrangement Number.
Arrangement No.

Core Number Composition

The right side is the size of 1 contact. The left side is the number of contacts.
Core Number Composition

When ordering parts, please determine the voltage, current, number of cores, size, etc. from the table below, depending on the working environment.

Arrangement No.		Contact Shape	Contact Composition			Rated Current (A) (Note 1)	Insulation Resistance MΩ (or higher)	Rated Voltage (Note 2) (Note 3)		Test Category Symbol (Note 4)
Shell Size	Arrangement Number	Contact Shape	Total Number of Cores	Core Number Composition	Contact Size	Rated Current (A) (Note 1)	Insulation Resistance MΩ (or higher)	VDC or less Text shows Contact No.	VAC (r.m.s.) or less Text shows Contact No. Parentheses show voltage resistance / VAC (rms)	Test Category Symbol (Note 4)
10SL	3	P Male (Pin) S Female (Socket)	3	3	#16	13	5000	700	500 (2000)	A
10SL	4		2	2
12S	3		2	2
14S	1		3	3
	2		4	4				250	200 (1000)	INST
	5		5	5
	6		6	6
	7		3	3				700	500 (2000)	A
	9		2	2
16S	1		7	7
	5		3	3
	8		5	5
16	10		3	3	#12	23
18	1		10	10	#16	13		BCFG-700, Others-250	BCFG-500 (2000), Others-200 (1000)	A (BCFG) INST (Others)
	4		4	4	#16	13		1250	900 (2800)	D
	5		3	2	#12	23
	5		3	1	#16	13
	8		8	1	#12	23		700	500 (2000)	A
	8		8	7	#16	13
	10		4	4	#12	23
	11		5	5	#12	23
	12		6	6	#16	13
	19		10	10
	20		5	5
	21		3	3	#12	23
	22		3	3	#16	13		1250	900 (2800)	D
20	2		1	1	#0	150		ABHG-1250, CDEF-700	ABHG-900 (2800), CDEF-500 (2000)	D (ABHG) A (CDEF)
	4		4	4	#12	23		700	500 (2000)	A
	7		8	8	#16	13
	15		7	7	#12	23
	16		9	2	#12	23
	16		9	7	#16	13
	17		6	5	#12	23
	17		6	1	#16	13
	18		9	3	#12	23
	18		9	6	#16	13
	22		6	3	#8	46
	22		6	3	#16	13
	23		2	2	#8	46
	27		14	14	#16	13
	29		17	17	#16	13
22	2		3	3	#8	46		1250	900 (2800)	D
	10		4	4	#16	13		1750	1250 (3500)	E
	14		19	19				700	500 (2000)	A
	19		14	14
	22		4	4	#8	46
	23		8	8	#12	23		H-1250, Others-700	H-900 (2800), Others-500 (2000)	D (H) A (Others)
	28		7	7				700	500 (2000)	A
24	2		7	7				1250	900 (2800)	D
	5		16	16	#16	13		700	500 (2000)	A
	7		16	2	#12	23
	7		16	14	#16	13
	10		7	7	#8	46
	11		9	3	#8	46
	11		9	6	#12	23
	20		11	2	#12	23		1250	900 (2800)	D
	20		11	9	#16	13
	22		4	4	#8	46
	28		24	24	#16	13		250	200 (1000)	INST
28	6	P Male (Pin) S Female (Socket)	3	3	#4	80	5000	1250	900 (2800)	D
	10		7	2	#4	80		G-1250, Others-700	G-900 (2800), 2 #8 46 Others-500 (2000)	D (G) A (Others)
				2	#8	46
				3	#12	13
	11		22	4	#12	13		700	500 (2000)	A
	11		22	18	#16	13
	12		26	26
	15		35	35
	16		20	20
	20		14	10	#12	23
	20		14	4	#16	13
	21		37	37	#16	13
32	1		5	2	#0	150		A-1750, Others-1250	A-1250 (3500), Others-900 (2800)	(A) D (Others)
	1		5	3	#12	23		A-1750, Others-1250	A-1250 (3500), Others-900 (2800)	(A) D (Others)
	2		5	3	#4	80		1750	1250 (3500)	E
	2		5	2	#16	13		1750	1250 (3500)	E
	5		2	2	#0	150		1250	900 (2800)	D
	7		35	7	#12	23		ABhj-250, Others-700	ABhj-200 (1000) Others-500 (2000)	INST (ABhj) A (Others)
	7		35	28	#16	13		ABhj-250, Others-700	ABhj-200 (1000) Others-500 (2000)	INST (ABhj) A (Others)
	8		30	6	#12	23		700	500 (2000)	A
	8		30	24	#16	13		700	500 (2000)	A
	9		14	2	#4	80		1250	900 (2800)	D
	9		14	12	#16	13		1250	900 (2800)	D
32A	10		54	54	#16	13		700	500 (2000)	A
32	17		4	4	#4	80		1250	900 (2800)	D
32	414		52	52	#16	13		700	500 (2000)	A
36	3		6	3	#0	150		1250	900 (2800)	D
	3		6	3	#12	23		1250	900 (2800)	D
	4		3	3	#0	150		A-1250, BC-700	A-900 (2800), BC-500 (2000)	D (A) A (BC)
	5		4	4	#0	150		700	500 (2000)	A
	9		31	1	#4	80
				2	#8	46
				14	#12	23
				14	#16	13
	10		48	48
	73		73	73
48	5		100	1	#8	46
				9	#12	23
				90	#16	13

Note 1: Rated current is the value for single contacts when incorporated in the connector. Please note that the rated current does not change according to the voltage.
Note 2: Rather than the size of the contact or shell, rated voltage changes by arrangement of contacts.
Note 3: In some items, rated voltage diverges by each contact even when within the same connector.
Note 4: Properties will vary depending on the test category.

About Change in Mis-insertion Prevention Key Position (Angle)

Straight Connector

Outline Drawing

Shell Size	Coupling Screw A Screw	Size (mm)
Shell Size	Coupling Screw A Screw	Cable Entry φB ±0.3	Effective Screw Length J ±0.3	Total Length L or less	Outer Diameter Q ±0.8	Conduit Screw V Screw	Screw Length W or more
10SL	5/8-24UNEF-2B	9.6	13.49	34.9	22.22	5/8-24UNEF-2A	9.53
12S	3/4-20UNEF-2B	9.6	13.5	42.8	25.4	5/8-24UNEF-2A	9.5
14S	7/8-20UNEF-2B	12.5	13.5	42.8	28.6	3/4-20UNEF-2A	9.5
16S	1-20UNEF-2B	15.6	13.5	42.8	31.8	7/8-20UNEF-2A	9.5
16	1-20UNEF-2B	15.6	18.3	52.4	31.8	7/8-20UNEF-2A	9.5
18	1-1/8-18UNEF-2B	20.2	18.3	52.4	34.1	1-20UNEF-2A	9.5
20	1-1/4-18UNEF-2B	23.0	18.3	55.6	37.3	1-3/16-18UNEF-2A	9.5
22	1-3/8-18UNEF-2B	23.2	18.3	55.6	40.5	1-3/16-18UNEF-2A	9.5
24	1-1/2-18UNEF-2B	29.5	18.3	58.7	43.7	1-7/16-18UNEF-2A	9.5
28	1-3/4-18UNS-2B	29.8	18.3	58.7	50.0	1-7/16-18UNEF-2A	9.5
32	2-18UNS-2B	37.5	18.3	61.9	56.4	1-3/4-18UNS-2A	11.1
36	2-1/4-16UN-2B	43.8	18.3	61.9	62.7	2-18UNS-2A	12.7
48	3-16UN-2B	69.1	18.3	65.1	81.8	3-16UN-2A	15.9

Angled Connector

Outline Drawing

Shell Size	Coupling Screw A Screw	Size (mm)
Shell Size	Coupling Screw A Screw	Cable Entry B ±0.3	Effective Screw Length J ±0.3	Total Length L or less	M ±0.8	Outer Diameter Q ±0.8	U ±0.8	Conduit Screw V Screw	Screw Length W or more
12S	3/4-20UNEF-2B	9.6	13.5	50.8	41.7	25.4	25.4	5/8-24UNEF-2A	9.5
14S	7/8-20UNEF-2B	12.5	13.5	54.0	43.3	28.6	27.0	3/4-20UNEF-2A	9.5
16S	1-20UNEF-2B	15.6	13.5	60.3	48.0	31.8	28.6	7/8-20UNEF-2A	9.5
16	1-20UNEF-2B	15.6	18.3	65.1	52.8	31.8	28.6	7/8-20UNEF-2A	9.5
18	1-1/8-18UNEF-2B	18.6	18.3	68.3	54.4	34.1	32.1	1-20UNEF-2A	9.5
20	1-1/4-18UNEF-2B	23.0	18.3	77.0	60.7	37.3	33.7	1-3/16-18UNEF-2A	9.5
22	1-3/8-18UNEF-2B	23.2	18.3	77.0	60.7	40.5	33.3	1-3/16-18UNEF-2A	9.5
24	1-1/2-18UNEF-2B	28.0	18.3	86.5	67.1	43.7	34.9	1-7/16-18UNEF-2A	9.5
28	1-3/4-18UNS-2B	28.2	18.3	86.5	67.1	50.0	38.5	1-7/16-18UNEF-2A	9.5
32, 32A	2-18UNS-2B	35.9	18.3	95.2	71.8	56.4	46.4	1-3/4-18UNS-2A	11.1
36	2-1/4-16UN-2B	42.2	18.3	100.0	73.4	62.7	51.2	2-18UNS-2A	12.7
48	3-16UN-2B	65.9	18.3	125.4	86.5	81.8	59.1	3-16UN-2A	15.9

Relay Connector

Outline Drawing

Shell Size	Coupling Screw A Screw	Size (mm)
Shell Size	Coupling Screw A Screw	Effective Screw Length B or more	Total Length L or less	Length to Flange M +0.4 -0	Outer Diameter N or less	Conduit Screw V Screw	Screw Length W or more
12S	3/4-20UNEF-2A	9.5	42.88	14.3	26.97	5/8-24UNEF-2A	25.4
14S	7/8-20UNEF-2A	9.5	42.88	14.3	29.36	3/4-20UNEF-2A	27.0
16S	1-20UNEF-2A	9.5	42.88	14.3	31.75	7/8-20UNEF-2A	28.6
16	1-20UNEF-2A	15.9	52.37	19.0	31.75	7/8-20UNEF-2A	28.6
18	1-1/8-18UNEF-2A	15.9	52.37	19.0	34.14	1-20UNEF-2A	32.1
20	1-1/4-18UNEF-2A	15.9	55.58	19.0	37.31	1-3/16-18UNEF-2A	33.7
22	1-3/8-18UNEF-2A	15.9	55.58	19.0	40.49	1-3/16-18UNEF-2A	33.3
24	1-1/2-18UNEF-2A	15.9	58.72	19.0	43.66	1-7/16-18UNEF-2A	34.9
28	1-3/4-18UNS-2A	15.9	58.72	19.0	50.01	1-7/16-18UNEF-2A	38.5
32, 32A	2-18UNS-2A	15.9	61.93	19.0	56.36	1-3/4UNS-2A	46.4
36	2-1/4-16UN-2A	15.9	61.93	19.0	62.71	2-18UNS-2A	51.2
48	3-16UN-2A	15.9	65.07	15.9	81.76	3-16UN-2A	59.1

Panel Mount

Outline Drawing

Shell Size	A Screw	Size (mm)
Shell Size	A Screw	B or more	K or less	L or less	M +0.79 -0	φN +0 -4.78	R ±0.13	S ±0.79	φT +0.25 -0.13
10SL	5/8-24UNEF-2A	9.53	2.1	21.9	14.28	15.9	18.26	25.4	3.05
12S	3/4-20UNEF-2A	9.52	2.4	24.3	14.27	19.86	20.62	27.79	3.05
14S	7/8-20UNEF-2A	9.52	2.4	24.3	14.27	23.01	23.01	30.18	3.05
16S	1-20UNEF-2A	9.52	2.4	24.3	14.27	24.61	24.61	32.54	3.05
16	1-20UNEF-2A	15.88	2.4	29.1	19.05	24.61	24.61	32.54	3.05
18	1-1/8-18UNEF-2A	15.88	3.0	28.6	19.05	26.97	26.97	34.92	3.05
20	1-1/4-18UNEF-2A	15.88	3.0	29.4	19.05	29.36	29.36	38.10	3.05
22	1-3/8-18UNEF-2A	15.88	3.0	29.4	19.05	31.75	31.75	41.28	3.05
24	1-1/2-18UNEF-2A	15.88	3.0	33.4	20.62	34.92	34.92	44.45	3.73
28	1-3/4-18UNS-2A	15.88	3.0	33.4	20.62	39.67	39.67	50.80	3.73
32, 32A	2-18UNS-2A	15.88	4.3	33.4	22.22	44.45	44.45	57.15	4.39
36	2-1/4-16UN-2A	15.88	4.3	33.4	22.22	49.23	49.23	63.50	4.39
48	3-16UN-2A	15.88	4.3	34.2	22.22	66.68	66.68	82.55	4.39

Current Capacity of Entire Connector

Rated current value per 1 contact varies depending on the size of the contact, but the current capacity that can flow safely through the connector varies depending on the total number of cores. The calculation method for 14-core or less and 15-core or more is different, so they are described separately.

(1) For 14-core or less

The rated current value per 1 contact at the time of connector incorporation is multiplied by the number of cores and then multiplied by the reduction factor in the figure below. The result is the allowable current of the entire connector.

■ Current Reduction Factor Table by Number of Cores

Total Number of Cores	1	2	3	4	5	6	7	8	9	10	11	12	13	14
Reduction Factor (%)	1	0.943	0.886	0.829	0.771	0.714	0.657	0.6	0.543	0.486	0.429	0.371	0.314	0.257

Example 1: For connectors with all contacts of the same size
Rated Current Value per 1 Contact x Number of Cores x Reduction Factor = Allowable Current of Entire Connector
13 A x 2 cores x 0.943 = 24.518 A
(When Arrangement Number is 12S-3)
Therefore, 24.518 A can be used for the entire connector.

Example 2: For connectors with contacts of different sizes
(Contact A Rated Current x Contact A Number of Cores + Contact B Rated Current x Contact B Number of Cores) x Reduction Factor (for the total number of cores) = Allowable Current of Entire Connector
(23 A x 2 cores + 13 A x 7 cores) x 0.543 = 74.391 A
(When Arrangement Number is 20-16)
Therefore, 74.391 A can be used for the entire connector.

(2) 15-core or more

The rated current value per 1 contact is multiplied by the number of cores and 20% of that value is the allowable current of the entire connector.

Example 1: For connectors with all contacts of the same size
Rated Current Value x Number of Cores x 20% = Allowable Current of Entire Connector
13 A x 17 cores x 0.2 = 44.2 A
(When Arrangement Number is 20-29)
Therefore, 44.2 A can be used for the entire connector.

Example 2: For connectors with contacts of different sizes
(Contact A Rated Current x Contact A Number of Cores + Contact B Rated Current x Contact B Number of Cores) x 20% = Allowable Current of Entire Connector
(23 A x 4 cores + 13 A x 18 cores) x 0.2 = 65.2 A
(When Arrangement Number is 28-11)
Therefore, 65.2 A can be used for the entire connector.

Soldering Method

Basic information

Compatible Connector	Circular Connector	Chain/Wire	Yes	Material	Rubber
Color	Black	Protection Function (Environmental Resistance)	Waterproof

This page is Waterproof Cap for MS Connector (For Plug), part number MMS25042-16P.
You can find the detail information about specifications and dimensions on part number MMS25042-16P.

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Basic Attributes

Compatible Shell Size
10SL

14S

16

18

20

22

24

28
Clear
Compatible Shell Size
- 10SL
- 14S
- 16S/16
- 18
- 20
- 22
- 24
- 28
Clear

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Optional Attributes

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Variation of this product

Part Number
MMS25042-10P
MMS25042-14P
MMS25042-18P
MMS25042-20P
MMS25042-22P
MMS25042-24P

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	Compatible Shell Size	Compatible Shell Size
5.89 €	1	Available	5 Days	10SL	10SL
6.94 €	1	Available	5 Days	14S	14S
8.43 €	1	Available	5 Days	18	18
9.59 €	1	Available	5 Days	20	20
12.82 €	1	Available	5 Days	22	22
10.04 €	1	Available	5 Days	24	24