Platinum 4125SL-250KV
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PLATINUM motors of the 4125 series are high-performance brushless fourteen-pole electric motors with a rotating casing ("outrunner") with excellent electrical properties, sophisticated construction and top-quality manufacturing. Hardened steel shafts and high-quality bearings ensure a long service life, quality materials used to make the stator and rotor also guarantee excellent performance parameters with high efficiency. They are low-speed, high-torque engines that handle large-diameter propellers and climbs without the need for a gearbox.
Engine designation system: xxYY SL-zzzz
xx - stator diameter in mm
YY - stator length in mm
SL - sensorless (SensorLess) engine
zzzz - number of revolutions per volt (rpm/V), "KV"
PLATINUM 4125SL-250KV
The 4125SL-250KV is an AC motor designed to drive models with a flight weight of up to 5000g, powered by a twelve-cell LiPo battery.
Motor Mounting: The PLATINUM 4125SL-250KV is designed for both front and rear mounting. For front mounting behind the engine face, use four M4 screws that extend into the engine face by a maximum of 5 mm. The holes for the fixing screws in the front of the motor are spaced regularly at 90° on a circle with a diameter of 30 mm. The engine bulkhead should be 6-8mm aircraft grade plywood. The rear mounting kit (mounting cross, rear mounting propeller carrier) is supplied with the engine.
Motor kit includes: PLATINUM 4125SL-250KV AC motor with cables with soldered 4mm gold-plated connectors, rear mounting kit, instructions.
LiXX cell power supply | 12 |
Revolutions per volt [rpm/V] | 250 |
Max. power (49 s) [W] | 2681 |
Internal resistance [mOhm] | 47 |
Open circuit current (at 44.4 V) [A] | 1.5 |
Max. peak current (49 s) [A] | 60.4 |
Diameter [mm] | 49.5 |
Length [mm] | 55.3 |
Total length [mm] | 77.3 |
Shaft diameter [mm] | 6 |
Weight [g] | 363 |
Number of poles | 14 |
Timing [°] | 15 - 25 |
Regulator [A] | 130 - 180 |
Recommended propeller (12S) | 15x6", 15x8", 16x6", 16x8" |