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YU10020 multi-rotor UAV motor KV120/KV80

By Yahree Aeropower Tech Co., Ltd. ↗

The YAHREE YU10020 multi-rotor UAV motor KV120/KV80 offers two propulsion configurations sharing the same dimensions and slot/pole architecture. Version-specific weights, battery recommendations, propellers and electrical ratings define integration requirements. Thrust depends on propeller, voltage and test conditions, while maximum current and power ratings apply for 15 seconds.

Motor dimensionsBoth versions: diameter 106.8+/-0.15 mm; length 44.6+/-0.5 mm.
Slots and polesBoth versions: 36N42P.
Speed constant120+/-5% RPM/V.KV120 version.
Speed constant80+/-5% RPM/V.KV80 version.
Free-load current4.3 A maximum.KV120 version; at 20 V.
Free-load current3.0 A maximum.KV80 version; at 20 V.

Product overview

The YAHREE YU10020 multi-rotor UAV motor KV120/KV80 is a propulsion component with two speed-constant options. Both versions use a 36N42P slot and pole arrangement within a motor envelope measuring 106.8+/-0.15 mm in diameter and 44.6+/-0.5 mm in length. The KV120 version weighs 835+/-15 g and recommends a 30100 propeller; the KV80 version weighs 393+/-15 g and recommends a 40~43 inch propeller. Custom KV, appearance and color options are available for OEM/ODM projects.

Electrical integration recommendations differ: KV120 specifies 10-14S LiPo cells, while KV80 specifies 6S; both recommend a 12-14S/130A ESC. Maximum continuous ratings are 80 A/3840 W at 48 V and 57 A/2862 W at 54 V, respectively. Maximum current and power ratings carry a 15-second limit. Thrust varies with propeller, voltage and test conditions. At full throttle, KV120 with a 30100 propeller produces 19550 g at 47.8 V; KV80 with a 4314 propeller produces 31600 g at 51.5 V.

Specifications

SpecificationValue & conditions
Motor dimensionsBoth versions: diameter 106.8+/-0.15 mm; length 44.6+/-0.5 mm.
Slots and polesBoth versions: 36N42P.
Speed constant120+/-5% RPM/V.KV120 version.
Speed constant80+/-5% RPM/V.KV80 version.
Free-load current4.3 A maximum.KV120 version; at 20 V.
Free-load current3.0 A maximum.KV80 version; at 20 V.
Phase-to-phase resistance16.5+/-7% mΩ.KV120 version; at 25°C.
Phase-to-phase resistance19.1+/-7% mΩ.KV80 version; at 25°C.
Maximum continuous current, power and temperature80 A / 3840 W; temperature at maximum continuous current: 85°C.KV120 version; at 48 V.
Maximum continuous current, power and temperature57 A / 2862 W; temperature at maximum continuous current: 93°C.KV80 version; at 54 V.
Maximum current and power105 A / 5040 W.KV120 version; at 48 V; 15 seconds maximum.
Maximum current and power110 A / 5940 W.KV80 version; at 54 V; 15 seconds maximum.
Weight and recommended integration equipment
  • Weight: 835+/-15 g;
  • recommended LiPo: 10-14S;
  • recommended ESC: 12-14S/130A;
  • recommended propeller: 30100.
KV120 version.
Weight and recommended integration equipment
  • Weight: 393+/-15 g;
  • recommended LiPo: 6S;
  • recommended ESC: 12-14S/130A;
  • recommended propeller: 40~43 inch.
KV80 version.
Magnet temperature limits and motor constants
  • Maximum magnet operating temperature: 150°C, recommended maximum 120°C;
  • torque constant Kt: 936.4 g.cm/A;
  • motor constant Cn: 0.02 rpm/g.cm.
KV120 version.
Magnet temperature limits and motor constants
  • Maximum magnet operating temperature: 150°C, recommended maximum 120°C;
  • torque constant Kt: 1502.9 g.cm/A;
  • motor constant Cn: 0.01 rpm/g.cm.
KV80 version.
Performance at 40% throttle
  • Voltage: 48.3 V;
  • thrust: 7010 g;
  • current: 17.3 A;
  • power: 835.59 W;
  • efficiency: 8.39 g/W.
KV120 version; 30100 propeller; 40% throttle.
Performance at 50% throttle
  • Voltage: 48.2 V;
  • thrust: 8750 g;
  • current: 24.1 A;
  • power: 1161.62 W;
  • efficiency: 7.53 g/W.
KV120 version; 30100 propeller; 50% throttle.
Performance at 60% throttle
  • Voltage: 48.2 V;
  • thrust: 10890 g;
  • current: 32.0 A;
  • power: 1542.4 W;
  • efficiency: 7.06 g/W.
KV120 version; 30100 propeller; 60% throttle.
Performance at 70% throttle
  • Voltage: 48.2 V;
  • thrust: 12650 g;
  • current: 41.0 A;
  • power: 1976.2 W;
  • efficiency: 6.40 g/W.
KV120 version; 30100 propeller; 70% throttle.
Performance at 80% throttle
  • Voltage: 48 V;
  • thrust: 14630 g;
  • current: 50.0 A;
  • power: 2400 W;
  • efficiency: 6.10 g/W.
KV120 version; 30100 propeller; 80% throttle.
Performance at 90% throttle
  • Voltage: 47.9 V;
  • thrust: 16590 g;
  • current: 63.4 A;
  • power: 3036.86 W;
  • efficiency: 5.46 g/W.
KV120 version; 30100 propeller; 90% throttle.
Performance at 100% throttle
  • Voltage: 47.8 V;
  • thrust: 19550 g;
  • current: 78.0 A;
  • power: 3728.4 W;
  • efficiency: 5.24 g/W.
KV120 version; 30100 propeller; 100% throttle.
Performance at 40% throttle
  • Voltage: 54.2 V;
  • thrust: 10340 g;
  • current: 15.9 A;
  • power: 861.78 W;
  • efficiency: 12.00 g/W.
KV80 version; 4314 propeller; 40% throttle.
Performance at 50% throttle
  • Voltage: 54.2 V;
  • thrust: 14740 g;
  • current: 27.5 A;
  • power: 1490.5 W;
  • efficiency: 9.89 g/W.
KV80 version; 4314 propeller; 50% throttle.
Performance at 60% throttle
  • Voltage: 54.1 V;
  • thrust: 17820 g;
  • current: 38.5 A;
  • power: 2082.85 W;
  • efficiency: 8.56 g/W.
KV80 version; 4314 propeller; 60% throttle.
Performance at 70% throttle
  • Voltage: 53.9 V;
  • thrust: 21430 g;
  • current: 54.5 A;
  • power: 2937.55 W;
  • efficiency: 7.30 g/W.
KV80 version; 4314 propeller; 70% throttle.
Performance at 80% throttle
  • Voltage: 53.8 V;
  • thrust: 24880 g;
  • current: 73.0 A;
  • power: 3927.4 W;
  • efficiency: 6.33 g/W.
KV80 version; 4314 propeller; 80% throttle.
Performance at 90% throttle
  • Voltage: 52.9 V;
  • thrust: 30350 g;
  • current: 104.0 A;
  • power: 5501.6 W;
  • efficiency: 5.52 g/W.
KV80 version; 4314 propeller; 90% throttle.
Performance at 100% throttle
  • Voltage: 51.5 V;
  • thrust: 31600 g;
  • current: 118.0 A;
  • power: 6077 W;
  • efficiency: 5.20 g/W.
KV80 version; 4314 propeller; 100% throttle.

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