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T-Motor AT4120 KV250 Drone Motor

T-Motor
China

The AT4120 KV250 is a long-shaft BLDC motor for VTOL fixed-wing airframes, 3D models up to 3500 g and sailplanes up to 5000 g. At 304 g with a 50 x 69 mm stator, it runs 12S LiPo to 2100 W max power and 45 A peak, producing up to 6.7 kg of thrust on 16 x 8 propellers.

Applications
Fixed Wing Model
Manufacturer Website
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Specifications

Peak Current (A)45
Weight (g)304
Diameter (mm)50
Length (mm)69
Internal Resistance (mΩ)76
Configuration12N14P
KV (rpm/V)250
No. of Cells (LiPo)12S
Idle Current@10v (A)1.0
Max Power 180 s (W)2100
Shaft Diameter In (mm)6
Shaft Diameter Out (mm)6
Lead Length (mm)100
Maximum Thrust (g)6717

* Specifications are provided for reference. Please verify the latest specifications with the manufacturer.

Description

FAQ

Click "Manufacturer Website" to go to the brand's official product page, where you can buy online or contact their sales team directly.
It is rated for up to 6.7 kg of thrust at a KV of 250 rpm/V. Thrust varies with propeller and battery, so size the motor against the manufacturer's thrust tables for your exact prop and cell count.
This 304 g, 50 mm stator motor is matched to its airframe class by thrust and mass. Confirm the all-up weight and required thrust-to-weight ratio before finalising the build.

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