The AEC 90556 is a commercial version of the MS90556 straight plug.
Straight plug in high-strength aluminum alloy to maximize shell strength, resists shock, vibration, and impact damage. Sequenced contact mating, arc-quenching design and keyways ensure safe handling even under load.
| MS Number | Description |
|---|---|
| AEC90555 | Wall mounting receptacle |
| AEC90556 | Straight plug |
| AEC90557 | Cable connecting receptacle |
| AEC90558 | Wall mount plug with coupling ring |
| MIL Spec. | Amerline |
|---|---|
| MS90555 | AEC90555 |
| MS90556 | AEC90556 |
| MS90557 | AEC90557 |
| MS90558 | AEC90558 |
| Shell Size | Size 28 | Size 32 | Size 44 | Size 52 |
|---|---|---|---|---|
| Current Rating (Amperes) | 40 A | 60 A | 100 A | 200 A |
| Shell | Aluminum alloy, olive drab chromate coating over cadmium or zinc plating |
|---|---|
| Insulator | Synthetic rubber |
| Contacts | Copper alloy, Silver Plated |
| Shell Finish | C – conductive / N – nonconductive |
Alternate insert positions prevent mismating of identical AEC 22992 connectors.
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 |
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| Normal | Rotate W | Rotate X | Rotate Y | Rotate Z |
To Avoid cross-plugging problems in applications requiring the use of more than one connector of the same size and arrangement, alternate insert rotations are available as indicated in the accompanying chart.
AEC90555C32412SY…
means alternate Y rotation
As shown in the diagram above, the front face of the pin insert is rotated within the shell in a clockwise direction from the normal shell key.
Views looking into front of pin insert or rear of socket insert
The socket insert would be rotated counterclockwise the same number of degrees in respect to the normal shell key.
| Arrangement Number | Insert Rotation (degrees from normal position) | ||||
|---|---|---|---|---|---|
| Normal DC or 60Hz | Alternate 400Hz | ||||
| W | X | Y | Z | ||
| 28-12, -13 | 0° | 180° | |||
| 32-04, -05 | 0° | 90° | |||
| 32-12, -13 | 0° | 180° | |||
| 44-02, -03 | 0° | ||||
| 44-12, -13 | 0° | ||||
| 44-50, -51, -52, -56 | 0° | 60° | |||
| 52-12, -13 | 0° | 300° | |||
