BLHeli Series ESC

Brushless Electronic Speed Controller

12A 20A 30A 40A 50A 60A 80A

Product Overview

The BLHeli Series Electronic Speed Controller (ESC) is designed to deliver smooth, responsive control of compatible brushless motors in RC aircraft and multirotor applications. Based on BLHeli firmware, it offers programmable settings and throttle calibration to help you configure your setup to suit your equipment.

Available in multiple current ratings, this ESC series offers options for different compatible RC builds. Select the required amperage and check the specifications for your chosen version before ordering.

Key Features & Benefits

BLHeli Firmware

Designed around BLHeli firmware for configurable ESC parameters and optimised brushless motor control.

Multiple Protection Functions

The supplier specifies low-voltage cut-off, over-temperature and throttle signal-loss protection. Available protection functions may vary by version.

Programmable Settings

ESC parameters can be configured using a compatible programming card or transmitter, according to the supported functions of the selected model.

Adjustable Throttle Range

Throttle calibration helps match the ESC to a compatible receiver for controlled, responsive operation.

BEC Power Supply

The series includes versions with a built-in linear or switching BEC. Output ratings depend on the selected ESC model.

Suitable Applications

RC multirotor aircraft and quadcopters
FPV racing drone builds
Compatible fixed-wing RC aircraft
DIY RC aircraft projects
Compatible brushless motor systems

Please confirm motor, battery, receiver and current requirements before installation.

Technical Specifications

The following specifications are taken from the supplier information available for the 12A, 20A and 30A versions.

12A ESC

Continuous Current	12A
Burst Current	15A (10 seconds, supplier stated)
Battery Compatibility	2–4S LiPo
BEC Output	5V / 1A
Dimensions	45 × 18mm (excluding cables)
Colour	Black

20A ESC

Continuous Current	20A
Burst Current	25A (10 seconds, supplier stated)
Battery Compatibility	2–4S LiPo
BEC Output	5V / 2A
Dimensions	58 × 26 × 7mm
Net Weight	26g
Package Weight	37g
Colour	Black

30A ESC

Continuous Current	30A
Burst Current	40A (10 seconds, supplier stated)
Battery Compatibility	2–4S LiPo
BEC Mode	Linear
BEC Output	Supplier states 2A/5A; confirm exact rating before use
Programmable	Yes
Dimensions	52 × 26 × 7mm

Specifications for the 40A, 50A, 60A and 80A versions have not been provided here. Please check the supplier's data for these models before publishing their technical ratings.

Maximum Motor Speed

Supplier-stated maximum speeds for the series:

Motor Pole Count	Maximum RPM
2-pole	210,000 RPM
6-pole	70,000 RPM
12-pole	35,000 RPM

Maximum speed figures are supplier-stated values and may depend on the ESC version and operating conditions.

Important Before Ordering

Select the correct current rating from the available options.
Check the battery cell count, motor requirements and BEC output for your selected version.
Programming equipment and accessories are included only if specifically stated in the selected listing option.
Ensure correct wiring and installation before powering the ESC.

Choose the Right ESC for Your RC Build

Please review the selected model's specifications before purchase.

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