ETRONIX PHOTON 3.0 50A ESC / 11.0R 3450KV MOTOR COMBO ET0442

Overview

Unlock the convenience and performance of brushless technology with the ETRONIX PHOTON 3.0 50A ESC / 11.0R 3450KV MOTOR COMBO (ET0442). This sensorless, waterproof system is specifically designed for easy setup and reliable power delivery, making it an ideal upgrade from a stock brushed system or the perfect starting point for your first brushless RC build. Whether you're exploring the world of brushless RC cars for the first time or looking to upgrade an existing model, this combo delivers professional-grade performance at an accessible price point. The Photon 3.0 represents genuine value for money in the competitive UK RC hobby market, offering the smooth throttle control and dependable acceleration that serious enthusiasts demand.

Designed with versatility in mind, the ETRONIX PHOTON 3.0 is equally at home powering a 1/10-scale off-road buggy, truggy, short-course truck, or stadium truck. The included 11.0R 3450KV motor provides a sensible balance of speed and torque for general 1/10-scale off-road running, whilst the 50A ESC offers robust current handling and practical protection options. This is a genuine step up in performance and reliability compared to brushed systems, delivering the smooth, responsive power that transforms your RC experience. From weekend bashing to more serious track days, the Photon 3.0 combo gives you the foundation you need to enjoy competitive, exciting RC driving.

Built with the UK RC enthusiast in mind, this combo comes ready for configuration via the included ET0106 programmable setup card, allowing you to fine-tune sixteen different ESC parameters to match your specific driving style and setup. The waterproof design means you can tackle wet conditions with confidence, whether you're splashing through puddles or running after rain. This is brushless RC performance that simply works, from the moment you open the box to your first exciting run on the track or field.

Key Features

• 50A Continuous Current Rating — The ESC can handle up to 50A of continuous current, with an impressive 300A burst capacity, ensuring smooth, reliable power delivery even under demanding driving conditions. This generous current rating provides headroom for aggressive acceleration and sustained high-speed running without thermal stress.
• Sensorless Brushless Motor Technology — The included 11.0R 3450KV motor uses sensorless brushless design, eliminating the maintenance issues and wear associated with brushed motors. Brushless motors offer superior efficiency, cooler running temperatures, and longer service life, making them the standard choice for serious RC enthusiasts.
• Waterproof ESC Design — The fully waterproof housing means you can run in wet conditions, through streams, or after rain without worrying about electronic failure. This opens up your RC driving opportunities throughout the year, regardless of UK weather conditions, and significantly extends the lifespan of your electronics.
• 16 Programmable Parameters via ET0106 Setup Card — Rather than being stuck with factory defaults, you can adjust throttle response, brake force, coasting behaviour, neutral range, motor rotation, running modes and more. This level of customisation allows you to dial in the exact feel and performance characteristics that suit your driving preferences and vehicle setup.
• Flexible Battery Compatibility — The ESC accepts 2-3S LiPo batteries or 5-10 cell NiMH/NiCd packs, giving you complete flexibility in power source choice. The 6V/3A BEC (Battery Elimination Circuit) output powers your receiver and servos without requiring a separate battery, simplifying your wiring and reducing weight.
• Three Running Mode Options — Choose between Forward/Brake, Forward/Brake/Reverse, or Forward/Reverse modes depending on your application and preferences. This flexibility means the same combo can be configured for different vehicle types and driving styles.
• Advanced Brake Control — Adjust minimum brake force (15–50%), maximum brake force (50–100%), and separate drag brake force settings for both forward and reverse modes. This granular control lets you dial in exactly how hard your vehicle brakes and how much it coasts when throttle is released.
• Thermal Protection System — The ESC features selectable thermal protection that automatically stops operation when internal temperature exceeds 95°C or 105°C (your choice). This intelligent protection prevents damage from overheating whilst allowing extended running in normal conditions.
• Compact Dimensions — Measuring just 48 x 38 x 32mm without cooling fan, the ESC fits easily into tight spaces within 1/10-scale chassis, making installation straightforward and leaving room for other components. The 95g weight is negligible compared to the performance gains.
• Automatic Cell Detection — When set to Auto, the cut-off voltage function automatically detects whether you're running LiPo or NiMH cells, automatically adjusting protection parameters accordingly. This convenience feature removes guesswork and protects your batteries from over-discharge.

Technical Performance

The ETRONIX PHOTON 3.0 50A ESC paired with the 11.0R 3450KV motor represents a carefully engineered platform for 1/10-scale off-road RC performance. The 3450KV rating delivers strong midrange torque whilst maintaining usable top-end speed — perfect for buggies, truggies, short-course trucks and stadium trucks where versatility matters. The 50A continuous current rating with 300A burst capacity ensures smooth power delivery under all conditions, from gentle acceleration to full-throttle launches, whilst the sensorless brushless design eliminates mechanical wear and provides the efficiency that modern RC drivers expect. The waterproof housing is engineered to IP67 standards, meaning you can confidently run in damp conditions or after rain without electronic failure concerns. Build quality is robust throughout, with the compact 95g ESC featuring advanced thermal management to handle extended running sessions. The 6V/3A BEC output is more than adequate for powering standard servos and receiver systems on 1/10-scale models. Battery compatibility spans the most popular options — whether you prefer the energy density and punch of 2-3S LiPo batteries or the reliability and robustness of 5-10 cell NiMH/NiCd packs, the Photon 3.0 is ready to go. The motor's 11.0R winding offers a genuine upgrade path from stock brushed systems, delivering noticeably smoother throttle response, significantly cooler running temperatures, and the kind of responsive acceleration that transforms your RC driving experience.

Adjustable Parameters Explained

The ET0106 programmable setup card gives you access to sixteen different ESC parameters, letting you customise the Photon 3.0 to your exact requirements:

• Throttle Response (1–3 ms) — Shorter times mean quicker acceleration response. Use 1ms for instant throttle reaction or 3ms for smoother, more controlled acceleration that's easier to manage on slippery surfaces.
• Coast (Off, 10–30) — When activated, the vehicle coasts rather than stopping immediately when throttle is reduced. This setting controls how much coasting occurs, useful for smooth track transitions and reducing brake wear.
• Neutral Range (5–12%) — Adjusts how far you must move the throttle trigger from neutral before the motor engages. Wider settings prevent accidental motor activation, narrower settings offer more precise control.
• Minimum Throttle (5–16%) — Controls initial acceleration aggressiveness when leaving neutral. Higher values provide punchier launches, lower values offer more gradual power application.
• Maximum Forward Force (40–100%) — Sets top speed in forward direction. Lower percentages limit maximum speed for control, higher percentages unlock full potential.
• Maximum Reverse Force (40–100%) — Independently sets reverse speed limit, useful when reverse isn't needed at full pace.
• Brake Response (0.1–3 ms) — Shorter times mean quicker braking engagement when you apply brakes. Use 0.1ms for immediate stopping power.
• Minimum Brake Force (Off, 15–50%) — Sets the brake force applied when first entering braking mode. Higher values mean harder initial braking.
• Maximum Brake Force (50–100%) — Controls peak braking strength. Higher values mean harder maximum braking, lower values offer gentler deceleration.
• Forward/Reverse Drag Brake Force (Off, 20–100%) — Sets braking force applied when throttle returns to neutral during forward or reverse motion. Controls how much the vehicle coasts versus how hard it brakes naturally.
• Motor Rotation (CW or CCW) — Reverses motor spin direction if needed to match your chassis layout without rewiring.
• Running Mode (3 options) — Forward/Brake for simplified operation, Forward/Brake/Reverse for full bidirectional control, or Forward/Reverse for racing applications without regenerative braking.
• Reverse Mode (One Shot or Two Shots) — In Forward/Brake/Reverse mode, choose whether reverse engages with a single trigger pull or requires two quick pulls to prevent accidental activation.
• Cut-Off Voltage (Off or Auto) — Auto mode detects LiPo cell count and applies appropriate low-voltage cutoff protection. Manual Off mode for NiMH/NiCd cells only.
• Thermal Protection (Off, 95°C, 105°C) — Selectable overtemperature shutdown threshold. Use 95°C for conservative protection, 105°C for extended hot-weather running.

What's in the Box

• ETRONIX PHOTON 3.0 50A Sensorless Waterproof ESC
• 11.0R 3450KV Brushless Motor
• ET0106 Programmable Setup Card for ESC configuration

What You Need to Complete

• RC Chassis (1/10-scale buggy, truggy, short-course truck, or stadium truck)
• 2-3S LiPo battery or 5-10 cell NiMH/NiCd battery pack
• RC Radio transmitter and receiver (2.4GHz recommended)
• Servo(s) for steering and/or throttle control (depending on vehicle type)
• Battery charger suitable for your chosen battery type
• Connectors and wiring as needed for your specific chassis

Frequently Asked Questions

• Is the ETRONIX PHOTON 3.0 suitable for RC beginners? — Absolutely. The Photon 3.0 is specifically designed with easy setup in mind, making it ideal for first-time brushless builders. The included ET0106 setup card is straightforward to use, and the sixteen programmable parameters can be left at sensible defaults if you prefer. The waterproof design and durable construction mean it will handle the inevitable crashes and learning mistakes that come with the hobby. Many experienced RC retailers recommend this combo as the perfect entry point into brushless technology.
• What batteries does the ETRONIX PHOTON 3.0 accept? — The ESC is compatible with 2-3S LiPo batteries or 5-10 cell NiMH/NiCd packs. This flexibility means you can choose based on your budget and performance preferences. LiPo batteries deliver higher punch and longer run times, whilst NiMH cells offer rugged reliability and simpler charging. The built-in BEC eliminates the need for a separate receiver battery, simplifying your electrical system.
• How do I programme the ETRONIX PHOTON 3.0 ESC? — Programming is handled exclusively through the included ET0106 setup card. You simply connect the card to the ESC and use its interface to adjust the sixteen available parameters. This method is more reliable than transmitter-based programming and ensures clean, mistake-free configuration. No computer or specialist tools are required — just the setup card that comes in the box.
• Is the ETRONIX PHOTON 3.0 waterproof? — Yes, the ESC is fully waterproof, allowing confident running in wet conditions, through water, or after rain. This is a significant advantage for UK RC drivers dealing with unpredictable weather. The waterproof design extends component lifespan and opens up year-round driving opportunities that simply aren't possible with conventional electronic systems.
• What makes brushless motors better than brushed motors? — Brushless motors like the included 3450KV unit offer several advantages: smoother, more responsive throttle control; significantly cooler running temperatures; no brush wear requiring maintenance; higher efficiency meaning longer run times from the same battery; and superior longevity. The performance difference is immediately noticeable once you've experienced brushless acceleration compared to brushed systems.
• Will this combo fit my 1/10-scale off-road vehicle? — Yes. The 50A ESC is designed specifically for 1/10-scale buggies, truggies, short-course trucks and stadium trucks. The compact 48 x 38 x 32mm dimensions mean it fits into standard ESC mounting locations in virtually all 1/10 chassis designs. The 11.0R 3450KV motor is a standard 540-size motor that fits standard motor mounts.
• What is the difference between the PHOTON 3.0 and earlier PHOTON versions? — The Photon 3.0 represents the latest iteration of ETRONIX's popular ESC line, incorporating refined thermal management, improved throttle response algorithms, and expanded programmability. It builds on years of field-proven reliability whilst adding modern features that serious RC drivers expect.
• How much does this combo cost? — The ETRONIX PHOTON 3.0 50A ESC / 11.0R 3450KV MOTOR COMBO (ET0442) represents exceptional value for money in the UK RC market, delivering professional brushless performance at an affordable price point that won't break the bank for beginners or experienced bashers.
• Can I adjust top speed and braking strength? — Yes, absolutely. The programmable parameters allow you to set Maximum Forward Force (controlling top speed) from 40–100%, Maximum Reverse Force independently, and both Minimum and Maximum Brake Force settings. This means you can dial the performance to suit your driving style, track conditions, and vehicle setup.
• Is there thermal protection? — Yes. The ESC includes intelligent thermal protection that automatically stops operation if internal temperature exceeds your chosen threshold (95°C or 105°C). This prevents damage from overheating whilst allowing normal extended running sessions. The compact design and waterproof housing both contribute to efficient heat dissipation.

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 Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. 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 ETRONIX PHOTON 3.0 50A ESC / 11.0R 3450KV MOTOR COMBO ET0442 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.