The FrSky Xact BLS5405H Brushless HV Servo is the most powerful servo in the Xact 5400 Brushless Series, delivering an incredible 54.9kg.cm of torque at 8.4V while maintaining outstanding precision and reliability. Designed for giant-scale aircraft, aerobatic models, turbine jets and other demanding applications, the BLS5405H combines advanced brushless motor technology with a robust all-metal construction.

Compared to the FrSky Xact Coreless servo range, the Xact Brushless series offers higher torque output, faster response times and improved efficiency while maintaining a compact standard-size footprint. The servo features a fully CNC-machined aluminium case, hardened metal gears, dual precision ball bearings and Hall sensor technology to provide exceptional centring accuracy and long-term durability.

Supporting FBUS (F.Port 2.0), SBUS and PWM protocols, the BLS5405H can transmit valuable telemetry data including real-time current, voltage and temperature when connected to compatible FrSky receivers or flight controllers. Servo travel settings of 90°, 120° and 180° can be configured directly through ETHOS, LUA scripting or the FrSky Freelink App.

Built for extreme performance, the BLS5405H is the ideal choice for pilots who require maximum control authority, precision and reliability.

Key Features

• Powerful brushless motor technology
  
• Massive 54.9kg.cm torque output at 8.4V
  
• High-voltage operation from 4.8V to 8.4V
  
• Fully CNC-machined aluminium protective case
  
• Heavy-duty metal gear train
  
• Dual precision ball bearings
  
• Hall sensor technology for exceptional centring accuracy
  
• Supports FBUS (F.Port 2.0), SBUS and PWM protocols
  
• Telemetry feedback for current, voltage and temperature
  
• Configurable servo travel (90°, 120°, 180°)
  
• Firmware updatable via FrSky tools
  
• Compact standard servo footprint
  
• Designed for high-load and precision applications

Perfect For

• Giant Scale Aircraft
  
• IMAC Competition Models
  
• 3D Aerobatic Aircraft
  
• Turbine Jets
  
• Large EDF Jets
  
• Large Scale Warbirds
  
• Scale Aircraft
  
• RC Helicopters
  
• High-Load Rudder Installations
  
• Elevator Applications
  
• Large Aileron Control Surfaces
  
• Professional Competition Aircraft
  

Product Summary

The FrSky Xact BLS5405H is a premium brushless high-voltage servo delivering up to 54.9kg.cm torque at 8.4V. Featuring a brushless motor, CNC aluminium case, metal gears, Hall sensor technology and FBUS telemetry support, it provides exceptional power, speed and reliability for the most demanding RC aircraft applications.

Specifications

• Model: BLS5405H
  
• Series: FrSky Xact Brushless 5400
  
• Servo Type: High Voltage Digital Brushless Servo
  
• Motor Type: Brushless
  
• Gear Type: Metal Gear
  
• Sensor Type: Hall Sensor
  
• Bearing Type: Dual Precision Ball Bearings
  
• Operating Voltage Range: 4.8V – 8.4V
  
• Protocols: FBUS (F.Port 2.0), SBUS, PWM
  
• Servo Horn Spline: Φ6 25T
  
• Refresh Rate: 1520μs/333Hz | 760μs/700Hz
  
• Firmware: User Updatable

Dimensions & Weight

• Dimensions: 40 × 20 × 33.5mm
  
• Weight: 77.5g
  
• Performance
  
• At 6.0V
  
  • Torque: 46.3kg.cm (643.0oz-in)
    
  • Speed: 0.17 sec/60°
    
  • Stall Current: 6.5A
    
• At 7.0V
  
  • Torque: 52.9kg.cm (734.6oz-in)
    
  • Speed: 0.14 sec/60°
    
  • Stall Current: 8.0A
    
• At 8.4V
  
  • Torque: 54.9kg.cm (762.4oz-in)
  • Speed: 0.12 sec/60°
    
  • Stall Current: 9.1A

Why Buy From Probuild Aircraft?

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In The Box

• FrSky Xact BLS5405H Brushless HV Servo
  
• Servo Arm Set
  
• Mounting Hardware