T-MOTOR U5 KV400

The T-MOTOR U5 KV400 is a brushless DC motor for 8-12kg-class multirotor UAVs in aerial imaging, delivery and agricultural crop protection. Maximum thrust reaches 2.85kg. Side-opening ventilation, heat-resistant copper windings, silicon-steel laminations and large bearings form its core construction, with support for 3-8S lithium batteries.

T-MOTORDrone motor

Maximum thrust: 2.85 kg
Maximum current: 30 A

Product overview

The T-MOTOR U5 KV400 is a multirotor brushless DC motor designed for 8-12kg-class UAVs used in aerial filming, photography, delivery services and agricultural crop protection. It provides maximum thrust of 2.85kg and supports 3-8S lithium batteries. The motor measures Φ 42.5×37.5mm, with a 5mm shaft and 600mm-long, 16# wires. Weight is 195g including wires and 156g excluding wires. Its electrical specifications include 116mΩ resistance, a 12N14P slot/pole configuration and 0.3A no-load current.

Side openings accelerate airflow through the motor to improve heat dissipation. Inside, precision windings use imported oxygen-free copper wire with 180°C heat resistance, paired with 0.2mm imported silicon-steel laminations to reduce heating and eddy currents. Large imported bearings support smoother rotation and lower noise, with fault-free operation under load reaching up to 1600 hours. The construction combines airflow management, heat-resistant winding materials and large bearings for the motor’s demanding multirotor applications.

Motors & ESCs

Specifications

T-MOTOR U5 KV400 specifications
Specification	Value & conditions
Product	T-MOTOR U5 KV400 multirotor brushless DC motor
Applications	Aerial filming, photography, delivery services and agricultural crop protection8-12kg-class multirotor UAVs.
Maximum thrust	2.85kg
Cooling construction	Side openings accelerate airflow; motor heat-dissipation efficiency increases by a factor of 2.5
Winding construction	Precision windings use imported oxygen-free copper wire rated for 180°C heat resistance and improved short-circuit resistance
Lamination construction	0.2mm high-grade imported silicon-steel laminations
Bearings and operating life	Large imported high-quality bearings support smoother, quieter rotation; fault-free operating time reaches up to 1600 hoursUnder load.
Resistance	116mΩ
Slot/pole configuration	12N14P
Shaft diameter	5mm
Motor dimensions	Φ 42.5×37.5mm
Wire gauge	16#
Wire length	600mm
Motor weight with wires	195gIncluding wires.
Motor weight without wires	156gExcluding wires.
Supported battery cell count	3-8SLithium battery.
No-load current	0.3ANo load.
Maximum continuous power	120W
Maximum current	30A
Performance at 65% throttle with 14*4.8CF	Current: 6.3A; power: 139.86W; thrust: 1200G; rotational speed: 5400; thrust efficiency: 8.58G/W 22.2V; T-MOTOR 14*4.8CF propeller; 65% throttle.
Performance at 75% throttle with 14*4.8CF	Current: 8.5A; power: 188.70W; thrust: 1500G; rotational speed: 5900; thrust efficiency: 7.95G/W 22.2V; T-MOTOR 14*4.8CF propeller; 75% throttle.
Performance at 85% throttle with 14*4.8CF	Current: 11.4A; power: 253.08W; thrust: 1820G; rotational speed: 6500; thrust efficiency: 7.19G/W 22.2V; T-MOTOR 14*4.8CF propeller; 85% throttle.
Performance at 100% throttle with 14*4.8CF	Current: 13.7A; power: 304.14W; thrust: 2030G; rotational speed: 6950; thrust efficiency: 6.67G/W 22.2V; T-MOTOR 14*4.8CF propeller; 100% throttle.
Performance at 65% throttle with 15*5CF	Current: 7.9A; power: 175.38W; thrust: 1490G; rotational speed: 5200; thrust efficiency: 8.50G/W 22.2V; T-MOTOR 15*5CF propeller; 65% throttle.
Performance at 75% throttle with 15*5CF	Current: 11.6A; power: 257.52W; thrust: 1900G; rotational speed: 5700; thrust efficiency: 7.38G/W 22.2V; T-MOTOR 15*5CF propeller; 75% throttle.
Performance at 85% throttle with 15*5CF	Current: 14.5A; power: 321.90W; thrust: 2220G; rotational speed: 6200; thrust efficiency: 6.90G/W 22.2V; T-MOTOR 15*5CF propeller; 85% throttle.
Performance at 100% throttle with 15*5CF	Current: 17.2A; power: 381.84W; thrust: 2480G; rotational speed: 6500; thrust efficiency: 6.49G/W 22.2V; T-MOTOR 15*5CF propeller; 100% throttle.
Performance at 65% throttle with 16*5.4CF	Current: 9.4A; power: 208.68W; thrust: 1750G; rotational speed: 4850; thrust efficiency: 8.39G/W 22.2V; T-MOTOR 16*5.4CF propeller; 65% throttle.
Performance at 75% throttle with 16*5.4CF	Current: 13A; power: 288.60W; thrust: 2120G; rotational speed: 5400; thrust efficiency: 7.35G/W 22.2V; T-MOTOR 16*5.4CF propeller; 75% throttle.
Performance at 85% throttle with 16*5.4CF	Current: 16.9A; power: 375.18W; thrust: 2650G; rotational speed: 5850; thrust efficiency: 7.06G/W 22.2V; T-MOTOR 16*5.4CF propeller; 85% throttle.