904-342 - AN2551 3-Pin Aircraft External Power Plug for Ground Power Units (GPUs)
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The 904-342 is a specific part number of the series Carolina GSE RM-K-1013-01. For more generalized information on this item series or for more options, click here.
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| Alternate Models | |
|---|---|
| 904-342 | MFR Model Number - 3 Pin Cessna Aircraft External Power Plug |
| AN2551 | Alternate Part Number for Nato Plug |
| General Information | |
|---|---|
| Part # | 904-342 |
| Manufacturer | Carolina GSE |
| Shipping Information | |
|---|---|
| Product Weight | 1 lbs. |
| Product Dimensions | 8 x 5 x 1 in. |
| Schedule B | 8504900080 |
| ECCN | EAR99 |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* |
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QUESTIONS & ANSWERS
The wire reservoir in the contact has a 0.474" I.D., so 2/0 AWG stranded copper wire is the largest size that will fit.
The wires are torch-soldered to the contacts. We recommend using a chef's torch for soldering the wires.
No, this is a plug only. You may be able to wire your aircraft – in conjunction with the plug – to do this, but this plug is commonly used to wire to an external power source (GPU) to jump-start an aircraft, or to an auxiliary power unit (APU) to power your instrument panel.
Most likely. While most Beechcraft airplanes are equipped with the 3-pin style receptacle, we ask that you check the receptacle on your aircraft prior to ordering to ensure that you get the correct plug style.
While the two larger pins carry 12 to 28V DC power, the smaller pin is limited to 100 W. This allows the device to be plugged in, the power connections made, and then the power to be turned on as the connector is inserted. It also allows the power to be disconnected prior to the larger power pins clearing the connector.
The shorter/smaller positive pin does a few different things:
- It removes ignition sources (such as sparks) when connected or disconnected from the receptacle.
- It ensures that a connection is made before the power is supplied.
- It increases the reliability of the connectors.
- Connectors are not powered at all times. (The solenoid pin can control the power management.)
- A power-limited switch, or split pen, can be installed.
- It creates a polarity protection.
The terminology is sometimes called "hot swap" because power is disconnected during the removal process No sparks fly and no connectors are damaged in the process.
