Arrma 4S Brushless Combo

Details

Factory replacment or upgrade for Arrma 3s/4s BLX models

Spektrum Firma 120A Smart ESC for surface vehicles is waterproof and delivers power and intelligence all-in-one. Without additional sensors or modules, they feed battery and ESC telemetry data straight to your radio in real time, all over one connection.

PRODUCT FEATURES

• Smart all-in-one telemetry
• Fast, powerful 32-bit ARM M4 processor
• Waterproof
• Multiple options for easy programming:
• Button programming
• Smart ESC Programming Box
• SmartLink USB Updating and Programmer application
• Multi-point protection:
• Over-current protection
• Automatic LiPo low-voltage cutoff
• Thermal protection
• Failsafe protection
• Developed and designed by Spektrum engineers, in partnership with the industry’s leading ESC manufacturer

• Ideal for 1/8th scale surface applications running on 4s Lipo setups
• High current adjustable BEC (6v or 7.4v @ 4 Amps)
• Compact for easy installation in most applications
• Ready to install no soldering required
• Rugged plastic case with mounting tabs
• Aluminum heat sink for high efficiency
• Cooling fan
• Adjustable high-power BEC
• Firmware updatable through the Smart ESC Programming Box
• High heat-resistant IC connectors, backwards compatible with EC connectors
• Limited 1-year warranty

PRODUCT OVERVIEW

Like every component in the Spektrum Smart ecosystem, Firma Smart ESCs combine “plug-and-play” simplicity with the ability to communicate with other Smart electronics together, creating the best-performing RC system for your vehicle imaginable.

Firma Smart ESCs do much more than regulate power. They function like a virtual engineer inside your model, providing a direct path to the vital operating data you need to reach peak performance. Firma Smart ESCs give you an extra layer of confidence that your electronics are all operating at their best.

With Firma Smart ESCs, you’ll be better connected to your vehicle than ever before without installing extra components that all work independently of each other. You won’t need extra wires, modules, or links. A Firma electronic speed control provides a one-wire solution for obtaining telemetry data such as RPM, temperature, battery voltage and capacity.

Firma ESCs not only gather the data but also send it to your transmitter in real time, instead of only storing it for after-run study. You’re able to adjust settings as needed to boost performance on the go. The Firma Smart single-wire telemetry solution has been tested for quality and performance by the best brands in RC. Their verdict? Smart technology is both simpler and superior!

Needed to Complete

• Spektrum Surface Receiver
• Spektrum Smart Technology LiPo Battery
• Spektrum Transmitter

What’s in the Box?

• (1) Spektrum Firma Smart ESC
• (1) Spektrum Smart sticker sheet(1)
• Product Manual
• FIRMA 2400KV 4-POLE BL MOTOR, 3668

  
  Factory 4S motor for Arrma BLX models
  Parameters
  Use Cars
  Type Brushless inrunner
  Number of poles 4
  Speed 2400KV
  Maximum supply voltage 2-4S LiPo
  Shaft 5 mm, D
  Connectors 4 mm, male
  Rotor position sensor No
  Packaging informations
  Dimensions 14,0 x 8,9 x 5,3 cm
  Weight 0,362 kg