This is the ElectriFly Silver Series 25 amp Brushless Electronic Speed Control.
Great for medium sized, high performance airplanes.
Delivering 25A of continuous current with a built-in
Battery Eliminator Circuit which can handle 2A, this
ESC is very simple to use and very affordable.
FEATURES: 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* (see Comments below)
Pre-installed WS Deans Ultra male connector for battery (see
Pre-installed gold plated 3.5mm 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
Safe Start System** (see details in Comments below)
Thermal Protection stops motor when maximum temperature 230°F
180 Day Warranty (USA & Canada Only)
INCLUDES: One Brushless ElectriFly Silver Series 25A Speed Control with
pre-installed receiver connector, battery connector, and motor
REQUIRES: Mating motor connectors, GPMM3112
Mating battery connector, WSDM3000
SPECS: Length: 1.58" (40mm)
Width: 1.02" (26mm)
Height: .31" (8mm)
Weight: .92oz (26g)
Input Voltage: 7-12 cells NiCd/NiMH
3-4 cells LiPo
(20V input w/o BEC)
Output Current: 25A continuous maximum
28A surge maximum
Max Output Power: 250 watts
ON-resistance: .15 ohms
Operating frequency: 8.5kHz
Low Voltage Cutoff: Battery voltage x .67
Thermal Cutoff: 230°F (110°C)
Timing Angle: 12°
COMMENTS: To use with "Old Airtronics" Rx, requires adapter: AIRM4400
**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
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.
updt tjt 081705
*updt* wm 2/28/07
updt jxs 7/15/09