Hobbywing Platinum 4120SL 250Kv Fixed Wing Motor

The Hobbywing Platinum 4120SL 250Kv fixed‑wing brushless motor delivers smooth, efficient power for larger RC aircraft. Built around a 40.6×20mm stator and precision balanced to ≤10mg, it offers strong performance on up to 12S LiPo with excellent thermal and electrical robustness. Part number HW30416000.

Key Specifications

• KV: 250
• Battery: LiPo 12S
• Motor size: Φ49.5 × 72.3mm
• Stator size: Φ40.6 × 20mm
• Stator process: High‑standard silicon steel sheet, 180° high‑temperature paint coat
• Enamelled wire: 200°
• Slots & poles: 12N14P
• Dynamic balance: ≤10mg
• Bearing: 696ZZ
• Motor axle (shaft) diameter: Φ6mm
• Isolation test: 500V AC high‑voltage resistance
• No‑load current: 1.4A @ 44.4V
• Maximum current (ambient ≤25°C): 55.3A for 30s
• Maximum power: 2452W for 30s
• Maximum thrust: 7.69kg
• Resistance: 64mΩ
• Wire: Enamelled wire output, length 90mm
• Weight (with wire): 309g
• Propeller mounting: Φ15mm – 3 × M3
• Motor mounting: Φ30mm – 4 × M4

Recommended ESC And Propellers

• Recommended ESC: Hobbywing Platinum 130A V4; Hobbywing Platinum 180A V5
• Recommended propellers (12S): 15×6E, 15×8E, 16×6E, 16×8E

Designed for reliable power delivery and durability, the Platinum 4120SL suits demanding fixed‑wing applications where smooth throttle response and precise engineering are valued.