Spektrum RC Firma 85 Amp Sensorless Brushless Smart ESC & Motor Combo (4000Kv)


Product type: Motor

Vendor: Spektrum



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  • 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
  • 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
Time Delay Brake: Yes
BEC Voltage: 6V (4A)
Forward: Yes
Weight: 80g (2.8 oz)
Continuous Maximum Current: 85A (760A Max Burst)
Output Connector Types: 4.0mm Female Bullet with 12AWG, 150mm wire
Reverse: Yes
Input Connector Types: IC3 with 12AWG, 160mm wire
Width: 1.4 (37mm)
Height: 1.5in (38mm)
Brake: Yes
Input Voltage: 7.4 - 14.8V
Length: 2.2in (57mm)
Width:1 .4 (37mm)
Height: 1.5in (38mm)
Weight :80g (2.8 oz)
BEC Voltage: 6V (4A)
Motor Specifications:
Application: 1/10 scale 4WD, 2WD, and on-road models running on 2S LiPo power
Bushing Or Bearing: Bearing
Connector Type: 4mm Bullet
Efficiency: 81%
Input Voltage: 6-8.4V
Maximum Continuous Current: 40A
Motor Design: Inrunner
Motor Size: 3652
Motor Type: Brushless - Sensorless
Number of Poles: 4
Product Weight: 7.4oz (210g)
RPM/Volt (Kv): 4000Kv
Shaft Diameter: 0.125" (3 mm)
Wire Gauge: 12 AWG

  • (1) Spektrum™ Firma™ Smart ESC
  • (1) Spektrum Smart sticker sheet
  • (1) Product Manual
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