T-Motor U Power U5 400KV Waterproof Brushless Motor

The T-Motor U5 400KV is a sealed U Power series outrunner for heavy-lift multirotors with an all-up weight of roughly 8–12 kg, such as hexacopters and octocopters carrying cameras, sensors or survey payloads. It runs on 3–8S LiPo and is matched to 14–16 inch carbon props.

Key features

• Waterproof and dustproof build for industrial flying in dust and rain

• Side-hole rotor design that T-Motor says cools about 2.5 times faster than a closed bell

• Oxygen-free copper windings rated to 180°C, on 0.2 mm silicon-steel laminations that cut heat and eddy losses

• German precision bearings for a quoted service life of about 1600 hours, with low running noise

• Up to 2.85 kg of thrust per motor at 22.2 V (6S) on a 16 × 5.4 inch prop

Specifications

• KV: 400

• Configuration: 12N14P

• Motor dimensions: Ø42.5 × 37.5 mm

• Shaft: 5 mm

• Weight: 156 g without leads, 195 g with leads

• Leads: 600 mm, 16 AWG

• Internal resistance: 116 mΩ

• Idle current: 0.3 A at 10 V

• Max continuous current (180 s): 30 A

• Max continuous power (180 s): 850 W

• Battery: 3–8S LiPo

• Recommended props: 14 × 4.8, 15 × 5 or 16 × 5.4 inch carbon fibre

Pair it with an ESC rated well above 30 A continuous at your cell count; T-Motor recommends its Flame 60A. Fit motors of the same KV on every arm.