Parts/Electric power/ESCs/Spektrum RC Firma™ 12S 200A Brushless Smart Marine ESC
Spektrum RC Firma™ 12S 200A Brushless Smart Marine ESC
Spektrum RC

Spektrum RC Firma™ 12S 200A Brushless Smart Marine ESC

Part # SPMXME1200
Where to buy
$249.99
AMain Hobbies
Seen Oct 12, 2026
$249.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

High-Performance Smart ESC with Advanced Features

The Spektrum™ Firma™ 12S 200A Brushless Smart Marine ESC is built to dominate the water with precision, power, and cutting-edge technology. With a burst current capability of 1200 amps and a water-resistant design, it's ready to handle aggressive acceleration and tough aquatic conditions. Engineered with Smart Technology, this ESC delivers real-time telemetry data straight to your compatible Spektrum™ transmitter without the need for additional modules. It's the ideal choice for serious RC boat enthusiasts looking for performance and reliability in one package.

About the Firma Brushless Smart Marine ESC


Unmatched Power & Performance

This ESC offers explosive acceleration and ultra-smooth operation, thanks to its powerful 32-bit ARM M4 processor. With a 1200 amp burst current and compatibility with two 3S-6S batteries, it provides extreme propulsion in any marine environment.

Integrated Smart Technology

Built-in Smart Technology eliminates the need for external sensors or modules. The Smart data wire on the IC5™ connector delivers real-time telemetry including voltage, current, temperature, and more directly to your Spektrum™ transmitter. This integration streamlines your setup and gives you full visibility into your system's performance.

Durability & Reliability

The Firma 12S 200A Brushless Smart Marine ESC is water resistant and features an advanced water-cooling system to maintain optimal temperatures during high-load use. Its multi-point protection safeguards against over-temperature, over-voltage, low-voltage, and over-current conditions. This durability ensures it keeps performing in wet, unpredictable environments.

Features:

  • 1200 Amp burst current
  • Smart telemetry through IC5™ connector
  • 32-bit ARM M4 processor
  • Water-cooled design
  • Water-resistant construction
  • Multi-point protection system
  • Compatible with two 3S-6S LiPo batteries
  • Flexible dual IC5 connectors
  • No additional sensors required when using a compatible Spektrum transmitter
  • Multiple programming options

Includes:

  • (1) Firma™ 12S 200A Brushless Smart Marine ESC w/Dual IC5 Connectors
  • Product Manual

Specifications:

Application Large Scale RC Boats
Motor Type Brushless - Sensorless
Input Voltage 6-12S LiPo (22.2-44.4V)
Continuous Current 200A
Burst Current 1200A
Dimensions 3.74x2.28x1.73in (95x58x44mm)
Weight -
BEC Voltage 6V/7.4V/8.4V
BEC Continuous Current 8A
BEC Peak Current 25A
Motor Connector 8mm Bullets
Battery Connector Dual IC5
Programmable Yes

*Tech Note: Do not connect a dedicated receiver battery to the receiver along with the ESC. When the ESC is turned on, it will provide the receiver with 6V regulated power from the main battery through the throttle connection. The ESC may be damaged if the receiver is also connected to a dedicated receiver battery.

**Tech Note: While water resistant, this component has not been designed to be immersed in water for long periods of time and should NOT be treated like a submarine. Additionally, most metal parts, including any screws and nuts as well as the contacts in the electrical cables, will be susceptible to corrosion if additional maintenance is not performed after running in wet conditions.

Manuals:

User Manual

CA Residents Prop 65 Warning WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...

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