Dualsky Summit 120 MKII 120A Brushless ESC with 8A BEC
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Dualsky Summit 120 MKII 120A Brushless ESC
The Dualsky Summit 120 MKII is a high-performance brushless electronic speed controller designed for demanding electric-powered fixed-wing aircraft. Supporting 2S–8S LiPo batteries, it delivers 120A of continuous current and up to 150A burst current.
A full CNC-machined aluminum case, integrated heatsink and 25 mm cooling fan help manage heat during high-power operation. The built-in switching BEC provides a continuous 8A output with adjustable voltage from 5.0V to 8.4V, making it suitable for aircraft equipped with high-voltage receivers and servos.
Advanced aircraft-focused features include anti-spark circuitry, energy recovery, an adjustable brake, automatic motor timing, programmable acceleration, low-voltage protection and overheat protection. The Summit 120 MKII also supports PWM signal frequencies up to 450Hz and is designed for compatibility with flight-control systems.
Key Features
- 120A continuous current
- 150A burst current
- Compatible with 2S–8S LiPo batteries
- Adjustable 8A switching BEC
- BEC output adjustable from 5.0V to 8.4V
- Anti-spark protection
- Full CNC-machined aluminum housing
- Integrated heatsink and 25 mm cooling fan
- PWM input frequency up to 450Hz
- Automatic and preset programming options
- Flight-controller compatible
- Energy-recovery capability
- Adjustable braking system
- Automatic motor timing
- Preset acceleration settings
- Low-voltage protection
- Overheat protection
- Onboard LED indicator
Specifications
| Brand | Dualsky |
| Model | Summit 120 MKII |
| Manufacturer SKU | 21791 |
| Battery Compatibility | 2S–8S LiPo |
| Operating Voltage | 7.4–29.6V |
| Continuous Current | 120A |
| Burst Current | 150A |
| Internal Resistance | 1.00 mΩ |
| BEC Type | Switching |
| BEC Output | 8A continuous |
| BEC Voltage | Adjustable from 5.0V to 8.4V |
| Control Signal | PWM, up to 450Hz |
| Cooling Fan | 0.98 in. (25 mm) |
| Dimensions Without Fan | 3.15 × 1.48 × 0.75 in. (80 × 37.5 × 19 mm) |
| Maximum Height With Fan | Approximately 1.16 in. (29.5 mm) |
| Weight With Wires | 5.93 oz. (168 g) |
| Battery Input Wires | 10 AWG, 11.81 in. (300 mm) |
| Motor Output Wires | 10 AWG, 3.94 in. (100 mm) with DB4F connectors |
| Signal Wire | JR connector, 17.72 in. (450 mm) |
| Recommended Power | Up to 3000W |
| Water/Dust Protection | No |
Recommended Applications
- Up to 3000W electric power systems
- 125E-class electric aircraft
- Large 3D and freestyle airplanes
- F3A pattern airplanes
- Fixed-wing UAVs
Tested Dualsky Motor Families
- GA1500R MKII
- EA V3 Series
- ECO V2 Series
- HD V3 Series
Package Includes
- 1 × Dualsky Summit 120 MKII Brushless Electronic Speed Controller
Important: This ESC is not waterproof or dustproof. Always select the battery, motor and propeller combination so that voltage, current and temperature remain within the ESC’s specified operating limits.