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  Item found in the following categories;
> Speed Controllers (ESC) > All Speed Controllers (ESC)
> Speed Controllers (ESC) > HobbyKing ESC
> Speed Controllers (ESC) > 20 to 39 Amp


Hobby King 30A ESC 3A UBEC (UK Warehouse)

Hobby King 30A ESC 3A UBEC (UK Warehouse)

Constant Current: 30A
Burst Current: 40A
Battery: 2-4S Lipoly / 5-12s NiXX
BEC: 5v / 3A
Motor Type: Sensorless Brushless
Size: 54 x 26 11mm
Weight: 32g

Programming Functions:
Battery Type: Lipo /NiXX
Brake: On / Off
Voltage Protection: Low / Mid / High
Protection mode: Reduce power / Cut off power
Timing: Auto / High / Low
Startup: Fast / Normal / Soft
PWM Frequency: 8k / 16k
Helicopter mode: Off / 5sec / 15sec (Start up delay)

User manual can be downloaded from the files Tab.


Weight: 47g
UK Warehouse
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Price  $10.50

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 Customer rated
Total of 38 discussions.
Smiechy  1 points - 7/29/2015
How long till the axn floater is in uk stock thanks
Allen  1 points - 7/23/2015
Hi Hobby King Great News that you you've opened in the UK!. I have a CX20 Quadcopter. what gimbal and camera would you suggest? , middle price range and good resolution and do you have it in stock? Thanks Allen McMurtry
john  10 points - 3/28/2015
The problem has been solved, I forgot to power the e.s.c.s before flashing. Senility strikes again.
 Tank1 862 points
At least you came back and explained what you did wrong,i bet a lot of others won't do that lol,good on you John.
 john 10 points
Strangely enough they had their first outing today, powering the Quanum MT3510-630kv motors. They ran up very smoothly and had thrust to spare.they also run cool, I like to have lots of spare current available and for the little extra cash I don't get motor fade.,good esc's....
john  10 points - 3/25/2015
I have just received these from the latest stock at UK warehouse, they are refusing to flash Simonk firmware using the HK flash tool, previously i have had no problem flashing them. I am getting the error message that the chip is not responding .Have they been locked.?
 JOHN 8 points
Hi John, I was about to order a replacement esc when I saw your post. I have also flashed them with Simonk firmware before. Have you had any luck with them yet. John g
Glenn  1 points - 3/18/2015
can you tell me where i can purchase blades for the ufo y4 tricopter as im going mad looking for them would be pleased if you could help
 Tank1 862 points
Try the Walkera lady bird props that HK sell i found they work really well with a few of my other micro quads.
Customer Reviews
Overall Rating
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Why does it say....

Note: User manual can be downloaded from the files Tab

When it can't???
All I get is "upload your file" !!
So how do you program it?

5 comments. Reply..

Overall Rating
Like it?
Great little ESC nice smooth throttle and a 3 amp BEC which is needed to run 4x 9gram servos comfortably 34 max amps drawn and come down warm to the touch. used on a axn with 3s

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Overall Rating
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Sweet good quality for the price, nice and smooth spool up, originally used the esc from my belt cp in a hk450 and replaced it with this one, all ican say it what an amazing differance, very good vaslue and even better price

1 comment. Reply..

Overall Rating
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Great little ESC and does what it says on the tin so to speak,it is just as good as the Turnigy Plush ESC in my book,i have both this one and a few plush ESC's in a few of my warbirds and this one seems to work just as well as them,so no complaints this end and if your going to try and run this little baby at it's max amps make sure you have good air flow as you would any other ESC,to be honest no one should really be pushing any ESC to it's max as you really should be going higher,so if you motor is calling for a 20amp ESC go at least another 10 amps more to be on the safe side,that way you shouldn't have any problems and you won't have to worry about your ESC if your pushing the motor at WOT most of the time.
For the price we can't go wrong and i'll be buying a lot more of these when i need too as i'm always using a lot of 30amp ESC's these days.

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Overall Rating
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Perfect for my quadcopter, and cheap

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