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Connectors - power |
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Peter Pine PO Box 1050 E-mail: ppine@northnet.com.au |
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- easy to use
- compact, taking up little space
- capable of handling the current being used
- insulated so no shorts can occur
- polarised, so that the leads cannot be connected the wrong way around.
It must be emphasised that, in electric flight, connectors are a cause of lost current – I suspect that even the best connectors are responsible for some current loss. Therefore, we use the best possible connectors and as few of them as possible. Following are the connectors shown above, listed from the left.
| JST Connectors are the preferred type for Indoor and Park Fliers. They are light and compact, but will only handle low amps. The plug measures 13x7x4mm and the socket measures 13x6x3mm. When plugged together the combined unit is 24mm long, but very slim. These plugs/sockets come with approximately 28cm of cable attached. The price of JST connectors has just dropped dramatically. I can now supply three male lead and three female lead in a pack for $4.95. |  |
| Schulze 2.0mm gold plated bullets.These are really tiny, and are good for up to 30A - ideal for a lightweight flier where you are pulling quite a few amps. The male plug is 13.5mm long, including a milled landing on which to place the cable while soldering. The female socket is only 9mm long, and the cable must be butted to the rear of the socket. These little gems come in packs of 6. Male plugs are $8.50/pk of 6, and the female sockets are $4.95/pk of 6. I will supply these individually for $1.75/male and $1.00/female. |  |
| 2.0mm gold plated pin connectors. These achieve a small connector with ease of use by turning down 3.5mm rod. The larger diameter hub has a landing milled in to it to accept the cable. Capable of handling 30A. Part No. MEH-02. These come in a pack of 2 x male, 2 x female and two lengths of heat shrink for $7.95 |  |
| 3.5mm gold plated bullets - I am currently stocking Venom and Hyperion 3.5mm gold connectors - both the male and female bullets have a hole to accept the cable with a vent hole as well - both brand 3.5mm connectors come in a pack of three male and three female for $6.90. |  |
| 4.0mm gold plated bullet connectors. I believe these high quality connectors will handle high current, in excess of 100 AMPS (I am currently using them for 115A - excuse the pun!). They are compact, being only slightly larger in diameter than the cable – the female connector is 5mm diameter, the male is 4mm. Part of the success is due to the contact being made over a length of some 15mm. The female must be fully insulated and the shank of the male also. Cable can be soldered into the rear of each half - use with 2.5 or 4 sq.mm cable. These come in a pack of three male, three female. I have two brands in stock - Venom connectors and Hyperion brand for $7.50 per pack. |  |
| 6.00mm Gold Bullets from Hyperion - these are quite short if space is a problem , but they benefit from the extra diameter to handle more amps - the male pin is split and expanded to create tension when plugged together - they come in packs of two pairs with heat shrink for $8.50 |  |
| 6.00mm Gold Bullets from Plettenberg - if you want the best, these are the ones - Mercedes Benz quality - designed in Germany by Plettenberg motors with a unique spinging system inside the female connector - guaranteed to give fantastic contact - they hang on so tight you will not separate these without an effort - they have a land on the rear of each connector to accept large size cable - they come loose for $12 a pair. |  |
| Deans Ultra Plug & Socket These have become the most popular connector in Australia for general use. They are very compact. They also have heavy duty brass contacts with a little leaf spring on each contact to ensure positive contact. This means that they will handle high amps. I have seen them used up to 100A. They are polarised as they come (no need to take any more precautions), and they come with one pair in a pack, with heat shrink, for $7.95. |  |
| Sermos R/C Snap Connectors - These are rated at 30Amps/600 Volts, which means they will take much more than 30 AMPS in our “low-voltage” applications. Sometimes they are called Anderson Powerpoles. The contacts in this connector are silver-plated copper. The secret of their success is the stainless steel leaf spring built into the plastic housing. This spring applies 25 lb of pressure onto the contacts ensuring good, vibration-proof contact – contact resistance has been measured at 600 micro-ohms. Sermos connectors are genderless, which means any connector can be plugged into any other connector. Electric fliers will have to exercise caution, but they have one distinct advantage. If you have two seven cell packs you can use them separately and still plug them together in series to make one 14 cell pack. Also, these connectors link together side-by-side using keys that are moulded into the side of the housings. When linked together, they are polarised! Sermos connectors are very easy to use, compact, will handle high current, and are insulated but not polarised unless you slide them together in pairs. One packet includes two black housings, two red housings and four silver contacts for $7.95 |
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