SKU: DRFC-2977
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Scorpion Tribunus SII-4020-540KV Brushless Motor

₹16,059.00 (Inclusive of all taxes)
Out of Stock

The Scorpion Tribunus SII-4020-540KV is a high-performance brushless motor engineered for demanding industrial and aerobatic UAV applications, delivering 1500W continuous power and smooth torque from 6S LiPo systems.

Features

  • 540KV rating optimized for 6S (22.2V) LiPo battery systems.
  • Delivers up to 70A continuous current and 1500W continuous power.
  • Features a 40mm stator diameter and a robust 5.98mm output shaft.
  • Constructed with high-grade windings and magnetic materials for durability.
  • Weighs 288g with dimensions of 48.9mm diameter and 78.4mm length.

Out of stock

Description

The Scorpion Tribunus SII-4020-540KV brushless motor is engineered for high-power industrial UAV and precision aerobatic platforms. Its 40mm stator and optimized magnetic circuit provide exceptional torque density and thermal efficiency, enabling sustained high-RPM operation without performance fade. The motor’s low 0.032-ohm resistance minimizes electrical losses, translating to cooler running and extended flight times.

Built with Scorpion’s signature craftsmanship, the motor employs precision-balanced components and high-temp windings to ensure reliability under continuous 70-amp loads. The robust 5.98mm shaft and reinforced housing are designed to withstand the vibrational stresses of aggressive maneuvering and heavy-lift applications, making it a cornerstone for professional-grade multirotor and fixed-wing builds.

Key Features

  • High-Torque 40mm Stator: Provides exceptional power density and smooth throttle response for precise control.
  • Optimized Thermal Design: Efficient cooling and low-resistance windings allow for sustained high-power operation.
  • Precision-Balanced Rotor: Minimizes vibration for smoother video footage and reduced bearing wear.
  • Industrial-Grade Construction: Utilizes high-strength materials and secure fastening for maximum durability in demanding environments.
  • 6S LiPo Compatibility: Engineered for 22.2V nominal input, delivering high power output for heavy-lift and aerobatic aircraft.

Applications

  • Heavy-lift industrial UAVs requiring high torque and reliable 6S power.
  • Large-scale FPV and aerobatic fixed-wing aircraft for smooth, high-power performance.
  • High-performance multirotor platforms for aerial photography and cinematography.
  • Racing drones where consistent, high-RPM power delivery is critical.
  • Custom experimental aircraft and drone projects needing robust, high-output propulsion.

Technical Specifications

Motor TypeBrushless Outrunner
KV Rating540 KV (RPM/Volt)
Stator Size4020 (40mm diameter x 20mm height)
Shaft Diameter5.98 mm
Motor Diameter48.9 mm
Motor Length78.4 mm
Weight288 g
Continuous Current70 A
Max Continuous Power1500 W
Motor Resistance (Rm)0.032 ohm
Recommended Battery6S LiPo (22.2V)

Frequently Asked Questions

What is the recommended battery configuration for this Scorpion Tribunus motor?

The Scorpion Tribunus SII-4020-540KV motor is optimized for 6S LiPo battery packs (22.2V nominal). This voltage range allows the motor to achieve its rated 1500W continuous power output efficiently. Always use a compatible high-C-rate LiPo and a properly rated ESC to ensure safe operation.

What size Electronic Speed Controller (ESC) is required for this motor?

Given the motor's 70A continuous current rating, you must use an ESC rated for at least 70A continuous, preferably with a higher burst rating (e.g., 80-100A). The ESC must also be compatible with 6S battery voltage. A high-quality ESC with active freewheeling is recommended for optimal performance and thermal management.

What is the mounting pattern for this motor?

While the exact bolt pattern is not listed in the provided specs, motors in the 4020 size class typically use standard M3 or M4 mounting holes. Please verify the specific hole spacing and size from the motor's physical base or official Scorpion documentation before designing or purchasing a mount.

Is this motor suitable for high-RPM FPV drone applications?

Yes, with its 540KV rating and 1500W power capability, this motor is well-suited for large, high-performance FPV drones and fixed-wing aircraft requiring substantial thrust. Its smooth torque delivery and durable construction make it ideal for aggressive aerobatics and fast forward flight on 6S power systems.

Package Includes

  • 1 x Scorpion Tribunus SII-4020-540KV Brushless Motor
  • 1 x Set of Fitting Accessories (mounting hardware)

Additional Information

Weight 0.288 kg
Dimensions 7.84 × 4.89 × 4.89 cm