SURFACE ESC, MOTOR COMBO: COBRA 5, 8S, 33.6V ESC, 20A PEAK BEC w/ 2028-800KV
SURFACE ESC, MOTOR COMBO: COBRA 5, 8S, 33.6V ESC, 20A PEAK BEC w/ 2028-800KV
Pairing the Cobra 5 with the Castle 4-POLE 12-SLOT SENSORED 2028-800KV will allow heavy, high-performance rigs like the Arrma Kraton 8s (1/5th) ™, Arrma Outcast 8s (1/5th) ™, Losi DBXL-E™ and HPI® Baja 5B™ to experience controllable low-end ranges without sacrificing power, punch, or speed.
The COBRA 5 is packed with a potent combination of hardware and software advancements, making it an indispensable ally in high-performance power systems. Users will benefit from the same footprint as its predecessor, the Mamba XLX2, while an upgraded current-sensing and thermal protection system actively mitigates the risk of failure in aggressive or high-load setups.
| Waterproof: Yes |
| Telemetry Capable: No |
| Data Logging: Yes |
| Auxiliary Wire: Yes |
|
Minimum Input Voltage: 3s |
| Maximum Input Voltage: 8s |
| Sensored Capable: Yes |
| Recon G6 Certified Motor: No |
| ROAR Certified Motor: No |
| CRYO-DRIVE: Yes |
| B-link Compatible: Yes |
Package Includes:
- Cobra 5 ESC
- 2028-800Kv Sensored Motor
- 300mm direct connect sensor wire
- Cobra decals
- Castle Link V4 USB Adapter
- Cobra Quick Start Guide
Cobra 5 Key Features:
- 32-Bit processing power for smoother motor control and improved response time.
- Enhanced Data Logging includes:
- Double the maximum sample frequency of older generations.
- 8x increased logging time of older generations.
- ESC electrical motor timing data.
- Acceleration data via onboard accelerometer.
- Looping feature prevents interruptions in data log recording.
- Additional tuning features include:
- Improved braking adjustability
- Separate brake and reverse curves
- Highly adjustable internal BEC (5.0V - 8.5V adjustable in 0.1V increments)
- Access to tuning options and firmware updates for free with Castle Link V4 USB programmer included with purchase.
- Optional smartphone-based programming with the B-LINK™ 2 Bluetooth Interface (sold separately) and free Castle Link 2 app available on Google Play or Apple App Store.
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Upgraded current-sensing and thermal protection system actively mitigates the risk of failure in aggressive or high-load setups.
Note: The Castle Cobra 5 is NOT intended for drag racing or high-speed application. Use of the Castle Cobra 5 in drag racing and speed run application will void the warranty. The Ghost RC Cobra 5 ACE ESC is intended for such applications; but due to the abusive nature of drag and high speed applications it is sold with no warranty. Check our 1/5th scale ESC comparison chart for more details.
Cobra 5 Technical Specs
| Input Voltage Range: |
Min: 3s LiPo Max: 8s LiPo (33.6v) |
| BEC Specifications: |
5.5V to 8.5V adjustable in 0.1V increments (20A peak), default 5.5V |
| Application Guidelines: |
Designed for use in 1/7th and 1/5th scale RC vehicles. The Cobra 5 is not intended for drag racing applications and the one-year warranty does not cover the use of the system outside if its intended use. Improper setup or use of this product can result in catastrophic failures of the motor, esc and/or batteries. |
| Running Modes: |
SmartSense™ and Sensorless |
| Reversible: |
Yes, but may be disabled for racing. |
| On/Off Switch: |
Yes, waterproof |
| Cooling Fan: |
Yes, factory equipped (50mm), temperature controlled |
| Size (L x W x H): |
3.98" x 2.49" x 2.35" (101.2mm x 63.3mm x 59.5mm) |
| Weight (w/o wires): |
13.2 oz (374 grams) |
| Connectors: |
8.0mm female bullets for motor connection. |
| Items Needed for Operation: |
A high current connector designed for high-powered electric systems, rated for 150+ amps, such as Castle CC Bullet 8.0mm, 6.5mm Polarized Castle Connectors, QS8 8mm Anti Spark, or QS10 10mm Anti Spark soldered to the battery leads. Castle has tested and recommends the following batteries. There are other batteries that will work, but these are the ones we have tested with: |
| Installation: |
Mounting holes located on the bottom of aluminum case for installation into vehicle, download template here. |
| Recommended Motors: |
Castle 2028-800Kv, 2028-1100Kv, or 1721-1260Kv. |
| Programmability: |
Fully programmable Castle feature set using the included FREE Castle Link V4 USB adapter and freely downloadable NEW Castle Link 2 Windows™ software. (Windows 10+ required) or optional smartphone-based programming with the B-Link 2 Bluetooth Interface (sold separately) and free Castle Link 2 app available on Google Play or Apple App Store. |
| Operation Environment: |
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| Product Use Statement: | Cobra 5 Product Use Statement |
2028-800kv Technical Specs
| Input Voltage Range: | 12s Max (8s with Cobra 5) |
| Kv: | 800 |
| Max RPM: | 45,000 |
| Motor Size: |
Length: 4.4" (112.7mm) Diameter: 2.2" (56.3mm) |
| Shaft Size: |
Length: 30mm Diameter: 8mm |
| Weight (w/wires): | 44 oz. / 2.75lbs |
| Mounting Hole Specifications: |
4mm @ 30mm |
| Cooling Fan: |
Available for purchase, 011-0153-00 |
| Connectors: |
8.0mm male bullets, 250mm sensor wire |
| Application Guidelines: |
Perfect upgrade for any 1:5 scale RC hobby vehicles (including gas to electric conversions) weighing up to 30lbs |
| Max Recommended Vehicle Weight: |
30lbs |
| Tech Tips: |
|
Additional Features:
Building on the success of the COBRA 10 and COBRA 8, we are excited to announce the release of the all-new COBRA 5, engineered for 1/7th and 1/5th scale high-performance RC applications!
New tuning parameters include adjustable braking curves and independent reverse settings to reduce the risk of broken gears, snapped driveshafts, and blown differentials, all while experiencing smoother transitions. Users will feel a more realistic and predictable driving experience while saving their drivetrain from unnecessary stress
Whether tweaking the suspension or altering tire pressure, data-driven decisions lead to optimal performance in an R/C vehicle, and the COBRA SERIES enhanced data logging includes double the maximum sample frequency of older generations, providing more granular data for analyzing performance. Gone are the days of clearing data logs—users will experience increased logging time and enjoy the new looping feature that prevents interruptions in recording. New data points for ESC electrical motor timing and acceleration via the onboard accelerometer provide insight into needed adjustments to detect tire slippage or fine-tune motor efficiency.
Access to tuning options, data logs, and firmware updates for the COBRA SERIES ESCs is available at no charge using the Castle Link V4 USB adapter included in the box and Castle Link 2 software, available for download on the Castle Creations website. Optional smartphone-based programming with the B-LINK™ 2 Bluetooth Interface (sold separately) and free Castle Link 2 app available on Google Play or Apple App Store.
- CRYO-DRIVE™ Technology minimizes the amount of time the ESC’s electrical components spend generating heat, resulting in improved thermal performance during partial throttle operation where the majority of driving occurs
- ESC is housed in a rugged CNC aluminum case and potted in waterproof epoxy to protect the electronics and promote efficient heat transfer
- Premium forged heatsink with elliptical fins for superior air flow and increased heat dissipation
- Oversized factory equipped thermally controlled 50mm cooling fan
- Waterproof design for all weather conditions
- Auxiliary wire functionality for "on-the-fly" adjustments using your transmitter
- Audible alerts for easy diagnosis of common issues such as motor-over-temperature and low-voltage cutoff
- Convenient transmitter programming for six common adjustable settings including cutoff voltage and drag brake
Resources:
| Cobra 5 User Guide | Cobra 5 Quick Start Guide | Cobra 5 Product Use Statement |
| 1/5th Scale ESC Comparison | Audible Alert Reference | ESC Calibration |
Optional Accessories:
Service Parts:
| 36" Copper Wire, 08 AWG | Receiver Harness Replacement (011-0157-00) | ESC Cooling Fan (011-0156-00) |
| Direct Connect Sensor Wire - 300m (011-0147-00) |
Castle Creations warrants this product to be free from manufacturing defects for a period of one year from date of purchase.
This product may contain chemicals known to the State of California to cause cancer and or birth defects or other reproductive harm.
Product designed in Olathe, Kansas USA.