GraysonHobby 200 Amp ESC with 5Amp Switching BEC

  • Up to 200-amp continuous current with proper air flow, 250-amp peak
  • 5-volt Switch-Mode BEC circuit capable of 5 amp continuous current on any recommended input voltage
  • Drives up to 7 analog or 6 digital standard-sized servos, with the BEC on any recommended input voltage
  • 2-7S Li-Po 
  • Finned heat sinks
  • Programmable motor braking
  • Safe power-arm mode prevents accidental starts
  • Programmable low voltage cutoff with settings for 2-cell Li-Po (6V), 4-cell Li-Po (12V), 5-cell Li-Po (15V), 6-cell Li-Po (18V), 7-cell Li-Po (21v) or 75% of battery starting voltage
  • Programmable soft start for helis and airplanes
  • Auto motor shut down if signal is lost or there is interference
  • Programmable timing—4 user-selectable ranges for use with a larger variety of brushless motors
  • Programmable throttle input range (1.1–18 or Auto Throttle Range)
  • Utilizes new smaller MOSFETs technology to minimize weight
  • 12AWG on the battery input and on motor output leads


GraysonHobby 200 Amp ESC w/ Switching BEC


Product Specifications:

Brake: Yes – Programmable
Continuous Maximum Current: 200A with reasonable cooling
Maximum Burst Current 250A <30 sec with cooling
Input Voltage: 7.2V – 25.9V (2s – 7s)
Output Wire 12AWG
Momentary Peak Current: 75A (15 sec)
Length: 2.87 in (73mm)
Width: 1.51 in (38.5mm)
Height: 0.98 in (25mm)
Weight: 2.3 oz (66g)
Internal BEC 5Amp

2 thoughts on “GraysonHobby 200 Amp ESC with 5Amp Switching BEC”

  1. I needed an ESC that could handle a lot of juice…I think this Grayson unit is it…I put some connectors on the esc, hooked it up and the thing worked!
    Decided I didn’t need to program it for my usage after I found this

    and my friend sent me this:
    timing the esc

    “…In Stunt we normally use 8 kHz to 12 kHz for the frequency at which the pulse widths are given to the motor windings. Higher frequencies might give problems with oscillations.

    “Motor Timing” The ICE controller uses an advanced timing method where the timing is adjusted automatically based on load and RPM.

    The way the principle designer (Patrick del Castillo) suggests setting our timing is… “I’d suggest you bump the timing up slightly from “low” (using custom setting) until you get the power you want.

    The lower timing will give you a much more efficient and cooler running system (less wear and tear on the motor too!)”

    What you see is my end result; I went from Custom (2) and stepped up incrementally to Custom (4). “Medium (5)” equates to approximately 18 deg from ZCO (EMF crossing zero).

    I have heard the guys in the Czech Republic recommend 12 deg so a setting of 2-4 is somewhere in the right area.

    “Direction” this is self explanatory.

    “PWM Rate” set to 8 KHz but others have used 12 KHz successfully. 8 KHz is the most efficient settings for a medium size outrunner.

    The general rule is the lower the motor’s inductivity, the higher the switching
    frequency should be. Increasing the switching frequency reduces the ripple in the current flow in part-load mode; but at the same time causes a rise in eddy current losses in the motor and switching losses in the controller.

    These losses do create heat in both the motor and the ESC. So if you run a higher PWM frequency expect to spend a little more current and generate a little more heat.

    As rule of thumb for selecting PWM for the motor – try this formula – Motor Kv x Magnetic Pole Count of the Motor x Nominal Volts used then divide by
    a factor of 20. Then round the answer down to the nearest setting on the ESC PWM Rate.”

  2. hello, i’m new from Malaysia. i wanna buy monster jet motor from grayson hobby. will there be any shipping service to Malaysia?

    just asking. thank you

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