Great Planes ElectriFly Silver Series 45A Brushless ESC 5V/2A BEC GPMM1840

Great Planes

Item # GPMM1840
$89.99 $59.99
(You save $30.00)
Status: In Stock
Great Planes ElectriFly Silver Series 45A Brushless ESC 5V/2A BEC GPMM1840

More information about Great Planes ElectriFly Silver Series 45A Brushless ESC 5V/2A BEC GPMM1840

This is the ElectriFly Silver Series 45amp brushless electronic speed control. Great for larger high performance airplanes. Delivering 45A of continuous current with a built-in Battery Circuit which can handle 2A, this ESC is simple to use and very affordable.


  • One Brushless ElectriFly Silver Series 45A Speed Control with pre-installed receiver connector
  • battery connector
  • motor connectors

Requires: Mating motor and battery connector

To use with Old Airtronics Rx, requires adapter.
Safe Start System: Move throttle stick to full throttle position, then to OFF position, then slowly advance throttle and motor will begin to run.

The Silver Series line of brushless electronic speed controls include many built-in safety features. One such feature could possibly cause the brushless motor to stop rotating when the transmitter's stick is at an extremely low position and/or if rotation of the brushless motor is impeded or obstructed in some way. This is normal, as the ESC is detecting that a problem possibly exists with the motor and/or speed control. Rotation of the motor is stopped to protect the speed control from possible damage.

Warning: If the ESC and motor have already been armed and the motor has been rotating normally, yet after moving the throttle stick to near minimum the motor suddenly ceases to rotate normally even if the throttle stick is advanced above minimum throttle, do not place your hands near the propeller! Failure to obey this warning could result in personal injury. From this point, moving the throttle stick up - even to full throttle might not cause the motor to rotate but the motor is still armed and active during this time. To regain control of the motor, move the throttle stick to absolute minimum throttle position and then advance the throttle stick upwards once again. Alternatively, you can disconnect the battery from the ESC, then re-connect the power source and re-arm the system. Never get near the propeller if the speed control is connected to input power! Always make sure the throttle stick is at minimum position before attempting to disconnect the battery from the speed control! ElectriFly is not responsible for incidental damage or personal injury as a result of misuse of this product.

  • Compatible with NiCd, NiMH and LiPo batteries
  • Auto-detects input volts and sets Low-Voltage cutoff
  • 8.5kHz switching frequency, for good run time and cool operation
  • Pre-installed Universal radio connector
  • Pre-installed WS Deans Ultra male connector for battery
  • Pre-installed gold plated 4mm female bullet connectors for motor
  • High powered switching BEC (Battery Eliminator Circuit) which handles 3 or 4 standard servos
  • Full proportional forward and smooth throttle response with ON/OFF brake
  • Safe Start System
  • Thermal Protection stops motor when maximum temperature 230ºF is reached

Length: 2.76" (70mm)

Width: 1.30" (33mm)

Height: 0.39" (10mm)

Weight: 1.76oz (50g)

Input Voltage: 6-12 cells NiCd/NiMH, 2-4 cells LiPo (20V input w/o BEC)

Output Current: 45A continuous maximum, 50A surge maximum

Max Output Power: 500 watts

ON-resistance: 0.008 ohms

Operating frequency: 16kHz fixed

BEC: 5V/2A

Low Voltage Cutoff: Battery voltage x .67

Thermal Cutoff: 230ºF (110ºC)

Timing Angle: 20º

Brake: ON/OFF