COPPERHEAD 10 1406-3800KV COMBO - Crawler/Basher

• Scale: 1/10
• ESC Type: Brushless speed controller (performance grade)
• ESC Dimensions: 2.19 inches × 1.39 inches × 1.33 inches (55.6mm × 35.3mm × 33.8mm)
• Input Voltage Range (ESC): 2S–4S LiPo
• Motor Type: Brushless sensored (4-pole, 12-slot)
• Motor Model: 1406
• Motor KV Rating: 3800KV
• Motor Configuration: 4-pole, 12-slot (Castle standard sensored configuration)
• Operating Modes: SmartSense (hybrid sensored-sensorless), Sensored Only, and Brushed
• SmartSense Technology: Sensored startup with automatic transition to sensorless running mode
• QuietSense Motor Technology: Precision startup in compatible Castle motors
• Internal BEC (Battery Eliminator Circuit): Selectable 5.5V or 7.5V, 6A peak output
• CRYO-DRIVE Technology: Advanced thermal management through optimised component usage
• Cooling System: 30mm removable cooling fan with dual-use fan guard
• Case Construction: Durable injection-moulded housing potted in waterproof epoxy
• Waterproof Rating: Potted in waterproof epoxy for moisture and dust protection
• Data Logging: Data Logging Lite capability (battery voltage, battery ripple, controller temperature, motor RPM, motor temperature)
• Audible Alerts: Eight distinct audible alert tones for motor over-temperature, low-voltage cutoff and other diagnostic conditions
• Transmitter Programming: Interface-free manual programming for low-voltage cutoff, brake/reverse type, brake amount, drag brake, motor type and direction
• Castle Link Programming: USB programming suite included (coupon for free USB adapter)
• B-Link Bluetooth Adapter: Optional wireless programming support for Android and iOS via Castle Link mobile app
• Telemetry Compatibility: S.BUS2 Telemetry Link compatible; supports Futaba T4PX, T7PX and T7PXR transmitters
• Firmware Updates: Free firmware updates available through Castle Link (no charge)
• Profile Saving: Ability to save multiple vehicle setup profiles through Castle Link
• Warranty: 1-year manufacturer warranty
• Designed and Assembled: Kansas, USA
• Maximum Vehicle Weight for Crawling: 4kg (9lbs)
• Recommended Applications: Rock crawlers, trail rigs, touring cars, stadium trucks, buggies, short course trucks, monster trucks
• What is Included: Copperhead 10 ESC with sensor harness, 1406-3800KV sensored motor, Copperhead decals, Audible Alert Reference Chart, coupon for free Castle Link USB adapter, Copperhead Quick Start Guide, sensor port dust cover
• Additional Features: Compatible with Castle 4-pole, 12-slot sensored motor range (1406, 1410, 1415 series)

Overview

Meet the Castle Creations COPPERHEAD 10 PERFORMANCE ESC — a brand new predator in the world of 1/10 scale RC. This completely new design rounds out Castle's 1:10 scale offerings, positioned perfectly between the SIDEWINDER 4 as the entry-level upgrade and the MAMBA X as the extreme performance option. Whether you're running a rock crawler, trail rig, basher, buggy, stadium truck, short course truck or monster truck on 2S–4S LiPo, the COPPERHEAD 10 brings legendary Castle reliability and innovative performance technology to transform your 1:10 scale RC car from ordinary to dangerously fun.

Throughout its development, the Copperhead has been rigorously tested in all types of conditions and elements, performing aggressively on the dirt track whilst delivering the smooth, controlled low-end power that technical low RPM driving demands. The COPPERHEAD 10 includes CRYO-DRIVE TECHNOLOGY for thermal optimisation, SENSORED MOTOR SUPPORT for seamless hybrid sensored-sensorless running, and DATA LOGGING LITE to capture and analyse your vehicle's performance. Whether you're dominating the gates on the trail or throwing dust on the dirt track, this ESC is power hungry when you need it and oozes smooth, buttery low-end power for technical crawling.

If your rig is outfitted with high-power servos or additional torque-increasing modifications, you need not worry about brown-outs, glitching or slow actuating servos. The COPPERHEAD 10 provides clean, constant power with its user-selectable 5.5V or 7.5V internal BEC (6A peak), ensuring high-power servos remain responsive and reliable throughout your session. This compact, easy-to-install brushless ESC combo is the ideal choice for anyone seeking sensored motor support, data logging capabilities, and Castle's signature reliability and performance in a mean-looking package.

Key Features

• CRYO-DRIVE Technology — This innovative software technology minimises the amount of time the ESC's electrical components spend generating heat by optimally controlling which components are used whilst driving the motor, thousands of times per second. This significantly reduces the rate at which the ESC heats up and results in dramatically improved thermal performance during partial throttle operation, where the majority of driving occurs. Your setup can handle higher gear ratios in heavier vehicles with longer runs without thermal issues.
• SmartSense Hybrid Sensored-Sensorless Technology — When paired with a Castle 4-pole, 12-slot sensored motor, SmartSense uses the motor's sensors at startup to provide cog-free starts, excellent torque, and outstanding low-speed drivability. Once the motor is turning, the ESC seamlessly transitions to Castle's ultra-efficient sensorless mode with electronic timing that advances automatically for peak performance in all driving conditions. This produces more power and less heat compared to full sensored or full sensorless alternatives.
• Selectable Internal BEC (Battery Eliminator Circuit) — The user-selectable 5.5V or 7.5V internal BEC with 6A peak output keeps high-power servos responsive and prevents brown-outs or glitching, even when running additional torque-increasing modifications. You can select your preferred voltage through Castle Link programming to perfectly match your servo requirements.
• Data Logging Lite — Captures and records critical performance data from your vehicle to maximise performance and battery life. The system logs battery voltage, battery ripple, controller temperature, motor RPM, and motor temperature. Download and analyse this data via Castle Link software to optimise your setup and understand exactly how your vehicle is performing.
• Audible Alerts — The COPPERHEAD 10 emits distinct audible chimes for easy diagnosis of common issues such as motor over-temperature and low-voltage cutoff. A handy reference decal included in the box contains a chart for all eight alert tones, so you can diagnose problems without needing to search online whilst enjoying your wheel time.
• Waterproof Construction — The ESC is housed in a durable injection-moulded case and potted in waterproof epoxy to protect the electronics and promote efficient heat transfer. This robust construction means the COPPERHEAD 10 can handle the demands of off-road RC driving, whether you're crawling through wet terrain or bashing in dusty conditions.
• Removable 30mm Cooling Fan — For crawler setups or others that do not require cooling, the fan is easily removed with four screws. The dual-use fan guard with the distinctive COPPERHEAD logo simply clicks back into place on top of the ESC, keeping the controller looking mean whilst providing extra protection to the electronics.
• Transmitter Programming — The ESC can be installed and calibrated with plug-and-play simplicity. Through interface-free manual programming mode using your transmitter, you can set your low-voltage cutoff, brake/reverse type, brake amount, drag brake, motor type and direction — providing immediate fuss-free wheel time without requiring a computer.
• Castle Link Programming Suite — Employ the Castle Link Programming Suite on your Windows PC for access to comprehensive tuning parameters and firmware updates. A coupon for a free USB adapter is included with purchase. Additional benefits include the ability to download and analyse your collected Data Logs, create an intuitive demo mode, and save setup profiles for multiple vehicles for later use.
• B-Link Bluetooth Adapter (Optional) — For wireless programming convenience, the new B-Link Bluetooth Adapter works with the Castle Link app for Android or iOS, allowing you to programme your ESC and monitor telemetry wirelessly from your smartphone or tablet without needing to connect to a PC.
• Futaba Telemetry Compatibility — The COPPERHEAD 10 is compatible with S.BUS2 Telemetry Link and works with Futaba T4PX, T7PX and T7PXR transmitters, allowing real-time monitoring of ESC and motor parameters through supported radio systems.
• Multiple Operating Modes — Supports SmartSense (sensored-sensorless hybrid), Sensored Only, and Brushed running modes, giving you flexibility to match your motor and driving style. This versatility means the COPPERHEAD 10 can work with various motor types and configurations.
• QuietSense Motor Technology — An innovative advancement in sensored motor design for the 1406, 1410 and 1415 motor options, QuietSense delivers the highest precision and most efficient startup experience, complementing the CRYO-DRIVE equipped ESC perfectly.
• 4S LiPo Compatibility — Supports up to 4S LiPo battery input (2S minimum), providing plenty of power headroom for high-performance applications whilst maintaining excellent control and reliability across the entire voltage range.
• 1-Year Warranty — Castle Creations backs the COPPERHEAD 10 with a comprehensive 1-year warranty, reflecting the company's confidence in the reliability and longevity of this performance ESC. Proudly designed, assembled and supported in Kansas, USA.

Technical Performance

The COPPERHEAD 10 is a compact, potent brushless ESC specifically engineered for 1:10 scale RC vehicles. Measuring just 2.19 inches by 1.39 inches by 1.33 inches, this controller fits easily into tight spaces on modern RC platforms. The ESC accepts input voltages from 2S to 4S LiPo batteries, providing genuine flexibility across the entire spectrum of 1/10 scale platforms from lightweight crawlers to high-powered buggies and monster trucks. The 1406-3800KV sensored motor included in this combo delivers exceptional torque characteristics ideal for low-speed technical driving, trail negotiation and crawling, with the 3800KV rating providing the perfect balance between speed and control. The motor features four poles and twelve slots, which is the Castle standard for sensored operation, ensuring flawless SmartSense hybrid operation when paired with this ESC. The waterproof epoxy potting ensures the electronics are protected from moisture, dirt and dust, whilst the potting compound also promotes efficient heat dissipation away from critical components. The durable injection-moulded case provides structural protection and durability across countless hours of operation. Combined with CRYO-DRIVE thermal management technology, the COPPERHEAD 10 runs cooler than competing designs during partial throttle operation where most driving occurs, extending component life and allowing longer, more consistent performance sessions. The 6A peak BEC is substantially more capable than entry-level controllers, ensuring even demanding servo configurations remain responsive and glitch-free.

What's in the Box

• Copperhead 10 ESC with sensor harness
• 1406-3800KV sensored motor (4-pole, 12-slot)
• Copperhead decals and Audible Alert Reference Chart
• Coupon for free Castle Link USB adapter
• Copperhead Quick Start Guide
• Sensor port dust cover

Frequently Asked Questions

• Is the COPPERHEAD 10 suitable for rock crawlers and trail rigs? — Absolutely. The COPPERHEAD 10 is specifically engineered for rock crawlers, trail rigs and technical low-RPM driving. SmartSense hybrid technology provides cog-free sensored starts with excellent torque and low-speed drivability, whilst the smooth low-end power delivery is ideal for navigating technical terrain at walking pace. The selectable 5.5V or 7.5V BEC ensures high-power servos for high-torque modifications remain responsive without glitching or browning out.
• Can I use this ESC on my basher, buggy, short course truck or monster truck? — Yes. Whilst the COPPERHEAD 10 excels at crawling, it is equally capable on buggies, stadium trucks, short course trucks and monster trucks running 2S–4S LiPo. The buttery smooth starts, CRYO-DRIVE enabled performance and smooth power delivery make it ideal for transforming stock 1/10 scale vehicles into dangerously fun performers.
• What battery does this combo need? — The COPPERHEAD 10 ESC accepts 2S, 3S or 4S LiPo batteries. The 1406-3800KV sensored motor included in this combo works perfectly with all voltage configurations within this range. For crawler applications with 4kg (9lbs) maximum vehicle weight, most users prefer 2S or 3S. For faster applications and heavier rigs, 3S or 4S provides better performance.
• How is this different from the SIDEWINDER 4 and MAMBA X? — The COPPERHEAD 10 sits perfectly between Castle's entry-level SIDEWINDER 4 and the extreme performance MAMBA X. Compared to the SIDEWINDER 4, the COPPERHEAD 10 adds SmartSense sensored motor support, Data Logging Lite, CRYO-DRIVE thermal management and enhanced BEC capability. Compared to the MAMBA X, the COPPERHEAD 10 is more accessible in price whilst retaining most key features, though the MAMBA X offers full Data Logging (not Lite) and extreme performance tuning options.
• Can I programme this ESC without a computer? — Yes. The COPPERHEAD 10 supports transmitter programming through interface-free manual programming mode. You can set low-voltage cutoff, brake/reverse type, brake amount, drag brake, motor type and direction directly using your transmitter — perfect for quick adjustments at the track or trail.
• Do I need to purchase Castle Link separately? — The COPPERHEAD 10 includes a coupon for a free Castle Link USB adapter, so you get access to the full Castle Link Programming Suite for Windows PC at no additional cost. The software itself is freely downloadable from Castle's website. If you wish to programme wirelessly, the B-Link Bluetooth Adapter is sold separately.
• Is this ESC waterproof? — The COPPERHEAD 10 ESC is potted in waterproof epoxy and housed in a durable injection-moulded case. This construction provides protection from moisture and dirt typical of off-road RC use. However, it is not designed for submersion in water.
• What do the audible alerts tell me? — The COPPERHEAD 10 emits distinct audible chimes to diagnose common issues such as motor over-temperature and low-voltage cutoff. A reference decal in the box charts all eight possible alert tones, so you can identify problems instantly without searching online.
• Is the fan removable for crawler setups? — Yes. The 30mm cooling fan can be easily removed with four screws. The dual-use fan guard with the COPPERHEAD logo simply clicks back into place on the top of the ESC, maintaining the aggressive looks whilst providing protective coverage for crawler setups that don't require active cooling.
• Does this work with Futaba radios? — Yes. The COPPERHEAD 10 is compatible with S.BUS2 Telemetry Link and fully supports Futaba T4PX, T7PX and T7PXR transmitters. You can monitor real-time ESC temperature, voltages and RPM through compatible Futaba radios when you add the Castle Telemetry Link for S.BUS2 (sold separately).

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Castle Creations and all major RC manufacturers. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the COPPERHEAD 10 1406-3800KV COMBO - Crawler/Basher today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.

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