1. General
Thank you for choosing a KONTRONIK KORATOP motor. KORATOP motors are brushless motors,
require an ESC for sensorless electrical commutation of brushless motors and have the following
characteristics:
-
Neodymium magnets, heat resistant up to 150°C.
-
Coil material, heat resistant up to 180°C
-
Thin section bearing for best use with propellers
-
Good air circulation and radial fan
2. Safety Notes
KORATOP motors are external rotor motors. Due to their external turning housing, never touch the
motor during operation. Please check that the motor housing can turn free, before you start up.
Check the headless screws which fix the shafts in the KORATOP motors regularly.
Maximum permissible motor RPM is:
Type
maximum RPM
KOTATOP 20-xx
10000
KOTATOP 30-xx
10000
KOTATOP 40-xx
10000
For gearbox usage, please note:
Motor RPM = rotor RPM x gear ratio
As soon as a speed control and a battery are connected to the motor, it is possible that the motor
starts (e.g. by operating error or by electrical defect). From this moment on, use the drive with highest
possible caution.
This motor, especially in combination with propeller or rotor, may cause considerable injuries.
Considerable injuries can also be caused by flying off parts.
Too much heat will destroy the motor. The winding of KORATOP motors is heat resistant up to 180°C
wire temperature. Please provide sufficient cooling.
Do not open the motor. Sensitive parts inside the motor may be damaged.
Usage of these motors with speed controls for brushed motors or by direct connection to a power
supply is not admissible. Such a use can damage the motor.
3. Connection to KONTRONIK speed control
KOBY / JAZZ or JIVE ESCs are recommended for optimal performance of KORATOP motors.
Connect the motor cable with the yellow or red / green / blue cables of the ESC. The motor rotation will be
reversed by changing 2 of the 3 motor cables and/or by programming motor reversion in the ESC.
The motor cables are difficult solderable enameled copper wires of the motor itself.
You must not shorten these cables. The winding will be irreparably damaged. Cutting motor
cables will terminate all warranty claims.
4. Mounting of KORATOP motors
While fixing the motor on the front flange, the permissible screwing depth has to be considered.
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KOTATOP 20-xx
M4
30 mm
4 mm
KOTATOP 30-xx
M4
30 mm
4 mm
KOTATOP 40-xx
M4
30 mm
4 mm
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