login
BECOME A PEI INSIDER
Sign up to receive the most up-to-date information on our products & services.

Amphenol ACA-B Series Connectors

Amphenol ACA-B Series



RUGGED REVERSE BAYONET CONNECTORS FOR POWER AND SIGNAL APPLICATIONS

Amphenol ACA-B connectors are designed for commercial and industrial applications requiring a bayonet style coupling device for high power and/or signal. Similar in design to a MIL-DTL-5015, ACA-B’s are a quick, positive mating type of connector, perfect for markets such as factory automation, robotics, and process control equipment. Amphenol’s ACA-B series has proven itself valuable in the military ground vehicle and alternative energy markets because of its low cost, high reliability design. For full product details on the ACA-B bayonet series, see the specifications below.

Amphenol

FEATURES

AMPHENOL ACA-B SERIES FEATURES

  • Commercial and Military
    ACA-B series connectors are made in accordance with German military specification VG95234 and MIL-DTL-5015. Originally designed for NATO combat vehicles, aircraft, and airborne equipment, these rugged connectors are now in a broad range of demanding commercial applications from trucks to industrial robots.

  • Simple and Fast Mating and Un-Mating
    ACA-B series connectors use a unique “reverse bayonet” coupling system that allows for mating and un-mating with a simple 120˚ rotation without compromising shock, vibration, or moisture resistance. The large, open ramps are easily cleaned of mud or other contaminants. The ramp coupling system eliminates the possibility of cross-threading and thread damage possible with standard MIL-DTL-5015 threaded connectors. This design is easier to mate in cold weather, tight spaces, or on equipment which must be disassembled frequently.

  • Shock and Vibration Resistant
    ACA-B series connectors are supplied with military-standard resistant sealing and a three-point bayonet coupling nut. The three-point bayonet coupling incorporates a wave spring and washer specified by the rail industry. ACA-B series connectors pass the most stringent tests of shock and vibration performance while maintaining proper continuity and water tightness. Rugged aluminum alloy shell and hardware are light in weight yet highly resistant to damage.

  • Audible, Visual and Tactile Confirmation of Mating
    ACA-B series connectors provide three independent checks that the connector halves are mated. When the coupling nut is fully rotated, the three studs snap into the end of the ramps with a loud “click” (audible). The user can feel the bolts click into the grooves (tactile). Blue dots on the receptacle and coupling nut are aligned when the connector is properly mated (visual).

  • Environmental
    The sealing is not compromised by any of the operating conditions defined in MIL-DTL-5015 and is completely watertight when mated.

  • Broad Temperature Range
    These connectors will operate in temperatures from -67˚ to +257˚F (-55˚ to +125˚C). High-temperature and zero-halogen insulators are also available. Contact us for ordering information.

  • Wide Range of Wire Gauges and Current-Carrying Capability
    Up to 150 amps with accommodations for wire gauges from size 26 to size 0 AWG.

  • Wide Variety of Contacts
    High-reliability screw machine contacts with silver or gold plating are available in sizes from 20 to 0 to accommodate wire gauges from 26 to 0 AWG. Solder, crimp, PC, coax, and thermocouple contacts are available.

  • Intermateable and Intermountable With All VG95234 Connectors
    The standard MIL-DTL-5015 layouts and dimensions ensure intermateability and intermountability with all connectors made in accordance with VG95234.

    All ACA-B connectors are intermountable with standard threaded MIL-DTL-5015 connectors, often making it possible to upgrade without changing panel cutouts or clearances.


MATERIALS & FINISHES

AMPHENOL ACA-B SERIES MATERIALS & FINISHES
Shell
Aluminum alloy (can be grounded)
Shell Plating
Olive drab chromate coating over cadmium plating, conductive black alloy, black alloy, electroless nickel, green zinc, gray zinc and black anodized
Contacts
Copper alloy
Contact Platings
Hard silver plating or gold plating
Insulator*
Neoprene
Seals
Silicone, Neoprene, or Viton®**


* Optional zero-halogen and high-temperature insulators are available. Contact us for information.

** Viton® is a registered trademark of DuPont DOW Elastomers

ELECTRICAL DATA

AMPHENOL ACA-B SERIES ELECTRICAL DATA
Operating Voltage/Test Voltage according to
MIL-DTL-5015H
The indicated values for the operating voltage are limits concerning the electrical function. When the working voltage exceeds 50V, safety precautions must be in accordance with the following standards: VDE 0100, IEC 309-1 or applicable national standards.

Current Rating


Contact Size

Test Current (Amps)

16/16S

13

12

23 (60)*

8

46 (69)*

4

80 (120)*

0

150 (225)*

*Test amps, multiconductor using Radsok contact



Altitude Voltage Derating* Chart



Nominal Distance

Operating Voltage*

Standard Sea Level Conditions

Pressure Altitude†
50,000 Feet

Pressure Altitude†
70,000 Feet

MS Service Rating


Airspace




Creepage




DC V




AC VRMS



Minimum Flashover Voltage
AC (RMS)

Test Voltage AC (RMS)

Minimum Flashover Voltage
AC (RMS)

Test Voltage AC (RMS)

Minimum Flashover Voltage
AC (RMS)

Test Voltage AC (RMS)

I

1/32

1/16

250

200

1,400

1,000

550

400

325

260

A

1/16

1/8

700

500

2,800

2,000

800

600

450

360

D

1/8

3/16

1,250

900

3,600

2,800

900

675

500

400

E

3/16

1/4

1,750

1,250

4,500

3,500

1,000

750

550

440

B

1/4

5/16

2,450

1,750

5,700

4,500

1,100

825

600

480

C

5/16

1

4,200

3,000

8,500

7,000

1,300

975

700

560


* No attempt has been made to recommend operating voltages. The designer must determine own operating voltage by the application of a safety factor to the above derating chart to compensate for circuit transients, surges, etc.

† Not corrected for changes in density due to variations in temperature.

Wire Range Sizes
26 AWG to 0 AWG (see contact selection)
Contact Resistance per
MIL-DTL-5015H p 3.15


Contact Size

Contact Resistance
Milliohm Max.

Potential Voltage Drop in Millivolts Max.

16/16S

6

21

12

3

20

8

1/(0.44)*

12 (20)*

4

0.5/(0.23)*

10 (18)*

0

0.2/(0.18)*

10 (27)*

*Using Radsok contact


Insulation Resistance
@77˚F (25˚C) > 5,000 Megohms


MECHANICAL

AMPHENOL ACA-B SERIES MECHANICAL
Operating Temperature
-67˚ to +257˚F (-55˚ to +125˚C) Neoprene
Sealing
33-foot submersible
Sealed when mated. ≈ IP 67 and NEMA 4P
Wire Sealing Range
The connector is designed for individual wire sealing. Sealing of an outer cable jacket on multiconductor cables must be accomplished with an appropriate endbell. Sealing is only guaranteed if wires used are according to MIL-W-5086 or within the listed ranges.



Sealing Range

Contact Size

Inches

MM

16

.064 - .130

1.62 - 3.30

12

.114 - .170

2.89 - 4.31

8

.164 - .255

4.16 - 6.47

4

.272 - .370

6.90 - 9.30

0

.415 - .550

10.50 - 13.97


Insulation Strip Lengths
See Contact Selection Chart
Mating Life
2,000 cycles minimum (AIB/GT) 500 cycles minimum (AIBC/ACA-B)
Salt Spray
Olive drab chromate over cadmium - 500 hours
Non-conductive black alloy - 48 to 200 hours
Conductive black alloy - 48 to 200 hours
Black anodized - 500+ hours
Electroless nickel - 48 hours
Gray Zinc nickel - 500 hours
Heat
Neoprene low-smoke, zero-halogen (LSZH) 257˚F (+125˚C); Viton 392˚F (+200˚C)
Chemical Resistance
Diesel Fuel, JP-4 , Hydraulic Fluid, Gasoline
48-hour intermittent spray for each chemical with no deterioration, followed by Contact Retention (CR), Insulation Resistance (IR), Dielectric Withstanding Voltage tests (DWV)
Corrosion Resistance
Olive Drab Cadmium-Plated 48 hours per MIL-DTL-5015 (3.17/4.6.13)
Fluid Immersion
Hydraulic Fluid 20 hours per MIL-DTL-5015 (3.19/4.6.15)
Lubrication Oil 20 hours per MIL-DTL-5015 (3.19/4.6.15)
Vibration
Per MIL-STD-810C, method 516.2, procedure VIII
1.0 g peak from 5 to 25 Hz
.030” double amplitude from 25 to 57 Hz
5g peak from 57 to 500 Hz
Basic Shock
Per MIL-STD-810C, method 516.2, procedure I pulse at half-sine wave of 30g for 11 seconds
Gun fire Shock
Per MIL-STD-810C, method 516.2, procedure IV pulse at half-sine wave of 100g for 1.5 seconds
Ballistic Shock
Per MIL-STD-810C, method 516.2, procedure IV pulse at half sine wave of 200g for .5 seconds
Contact Type
Solder, crimp, PC, coax, or thermocouple. Hard silver or gold plating.
Contact Insertion
From rear with simple hand-tool. Removable, 5 cycles minimum.
Contact Retention
Pin and socket contacts are designed to resist severe vibration and repeated connection and disconnection. Contact retention and separation is tested according to MIL-DTL-5015H (4.6.6.1)


Contact Size

Retention Force Min.

16

10

12

15

8

20

4

20

0

25


Number of Circuits
1 to 85
Polarization
Key and keyway plus three point bayonet with optional rotational polarization.
Rear Accessories
Maximum Torque


Size

In./Lb. Max.

10SL

26

14S

44

16

50

16S

50

18

55

20

65

22

85

24

90

28

114

32

120

36

153

40

170




Thermocouple Codes

Material

Color Code

Code

Iron

Black

IR

Constantan

Yellow

CON

Copper alloy

-

Cu

Chromel

White

CH

Alumel

Green

AL

Thermocouple Types:
J = Iron-Constantan
K = Alumel-Chromel
T = Copper-Constantan
E = Chromel-Constantan



Approvals/ Agency Listing
UL File# E115497


AMPHENOL ACA-B SERIES CROSS-SECTION

ACA-B Series Cross-Section

COMPONENTS

AMPHENOL ACA-B SERIES COMPONENTS


PLUGS

RECEPTACLES

O-Ring

AIB/GT
O-Ring AIB/GT

AIBC/ACA-B
O-Ring AIBC/ACA-B

AIB/GT

AIBC/ACA-B

Barrel/Shell

Barrel/Shell AIB/GT

Barrel/Shell AIBC/ACA-B

Barrel/Shell AIB/GT

ACA-B Barrel/Shell

Insert/
Insulator

Insert/Insulator AIB/GT

Insert/Insulator AIBC/ACA-B

Insert/Insulator AIB/GT

Insert/Insulator AIBC/ACA-B

Contacts


Plugs Contacts AIB/GT

Plugs Contacts AIBC/ACA-B

Receptacles Contacts AIB/GT

Receptacles Contacts AIBC/ACA-B

Wave Spring and
Skid Washer
(Optional)

Wave Spring and Skid Washer AIB/GT

Wave Spring and Skid Washer AIBC/ACA-B




Coupling Nut


Coupling Nut AIB/GT

Coupling Nut





Individual Wire
Sealing Grommet

Individual Wire Sealing Grommet AIB/GT

Individual Wire Sealing Grommet AIBC/ACA-B





Ferrule/Sleeve
Compression Ring

Ferrule/Sleeve Compression Ring AIB/GT

Ferrule/Sleeve Compression Ring





Endbell/
Backshell/
Cable Clamp

Endbell/ Backshell/ Cable Clamp AIB/GT

Receptacles/Insulator







 
oblivion