SimonK Red ESC 30A (Without Connector) for Quadcopter

SimonK Red ESC 30A (Without Connector) for Quadcopter

The SimonK 30A ESC drives brushless DC motors and can supply current up to 30A. This is the red version sold without connectors, for quadcopters, multirotor drones and RC planes.

The specification list gives a 30A rating, a 40A peak for less than 10 seconds, a 5V/2A BEC, 2-3S LiPo compatibility, recommended A2212 BLDC motors (1000KV, 1400KV, 2200KV), dimensions of 45 x 24 x 11 mm and a weight of 32 g. The page showed only 41 left at Rs 367 (SKU TIFQC0076).

Key features

• 30A current rating: with a 40A peak for under 10 seconds.

• 5V/2A BEC: battery eliminator circuit.

• 2-3S LiPo: as listed.

• Low-voltage protection: as listed.

• Reverse polarity protection: as listed.

• Throttle calibration: as listed.

How an ESC works

An electronic speed controller (ESC) converts the throttle signal from the flight controller into the three-phase power that a brushless motor needs. It switches battery current through MOSFETs at high speed, so the motor turns at the speed that the pilot or autopilot asks for. The continuous current rating shows how much current the ESC can carry all the time, and the burst rating shows what it can survive for a few seconds.

Match the ESC to the rest of the power system. The battery cell count must fall inside the listed range, the continuous current must be higher than what your motor and propeller draw at full throttle, and the signal protocol (for example PWM, Oneshot, Multishot or DShot) must be supported by your flight controller. An ESC marked OPTO has no built-in BEC, so the receiver and flight controller need power from another source. An ESC with a BEC can supply a regulated voltage, usually 5V, to small electronics.

Install and test carefully. Solder joints must be clean and strong, the motor wires should be kept short and tidy, and the ESC needs airflow because current makes heat. Calibrate the throttle range if the ESC needs it, check the motor direction with the propellers removed, and never connect a battery with the propellers fitted while you are working on the wiring. Use a battery with a cell count and connector that suit the ESC, and check for a heat problem after a short test hover.