Product Description of Fusion P-FS-XC140HV Ultra HV ESC for 6S–14S LiPo aircraft and helicopters 

The Fusion P-FS-XC140HV Ultra HV ESC for 6S–14S LiPo aircraft and helicopters is engineered for high-voltage, high-current RC platforms that demand uncompromising power delivery and thermal resilience. Designed for large-scale electric aircraft, 600–800 class helicopters, and custom UAV builds, this ESC supports a continuous current of 140A and operates across a wide input range of 22.2V to 51.8V. Whether you're flying a 3D aerobatic warbird, a high-thrust EDF jet, or an experimental propulsion rig, the Fusion P-FS-XC140HV delivers consistent performance under sustained electrical loads with minimal voltage sag.

Key features of the Fusion P-FS-XC140HV Ultra HV ESC

• 140A continuous current – supports full-throttle operation for large-scale electric aircraft
• Passive aluminum cooling – maintains thermal stability without active airflow systems
• HV-class voltage range – compatible with 6S–14S LiPo setups (22.2V–51.8V)
• Compact form factor – fits tight fuselage spaces and high-density builds
• Motor compatibility – supports 250–500KV motors for diverse propulsion configurations
• Failsafe design – no telemetry support, external BEC required for receiver power

How does the Fusion P-FS-XC140HV handle high-voltage power systems?

The Fusion P-FS-XC140HV brushless ESC for large-scale RC platforms with 140A continuous current is built to operate reliably across a wide voltage spectrum. With support for 6S to 14S LiPo batteries, this ESC enables extreme power setups without compromising stability. Its HV-class architecture ensures consistent current delivery even under full-throttle conditions, making it suitable for aircraft with large propellers, high-thrust motors, and cyclic-intensive flight profiles. The passive aluminum heat sink helps dissipate heat without the need for fans, reducing weight and mechanical complexity.

Is the Fusion P-FS-XC140HV suitable for helicopters and jets?

Yes. The HV-class ESC for 600–800 class helis, EDF jets, and 3D fixed-wing aircraft is optimized for platforms that require sustained current and precise throttle response. Helicopter pilots benefit from its ability to handle cyclic loads during aggressive 3D maneuvers, while jet enthusiasts appreciate its compatibility with high-speed EDF setups. The ESC’s compact form factor allows for clean installations in narrow fuselages, and its passive cooling system ensures reliable operation without airflow dependency.

What motor setups are supported?

The Fusion P-FS-XC140HV with 22.2V–51.8V input range, 250–500KV motor support, and compact form factor accommodates a wide range of propulsion configurations. Whether you're running a low-KV motor for torque-heavy applications or a high-KV setup for speed, the ESC maintains consistent output across the spectrum. This flexibility makes it ideal for experimental platforms, aerobatic aircraft, and custom UAVs where motor selection varies based on mission profile or airframe design.

Does the Fusion P-FS-XC140HV include onboard telemetry or BEC?

No. The RC aircraft ESC with passive heat sink, external BEC requirement, and no telemetry support is designed for simplicity and reliability. It does not include telemetry feedback or an integrated BEC, meaning users must supply receiver power via an external BEC. This separation of systems allows for more precise power management and reduces the risk of interference or overload. The ESC’s passive cooling system further enhances reliability by eliminating moving parts and airflow dependencies.

Why choose the Fusion P-FS-XC140HV for large-scale electric builds?

For builders seeking robust performance in demanding environments, the Fusion P-FS-XC140HV 140A ESC with passive aluminum cooling and high-voltage reliability offers a compelling solution. Its ability to handle 140A continuous current, support up to 14S LiPo, and operate without active cooling makes it ideal for warbirds, 3D aerobatic aircraft, and high-thrust UAVs. The ESC’s compact footprint and wide motor compatibility further enhance its versatility across diverse RC applications.

Is this the best HV ESC for experimental platforms?

In contexts where reliability, voltage range, and current capacity are critical, the best HV ESC with 14S LiPo support, passive cooling, and 140A continuous current stands out. The Fusion P-FS-XC140HV is purpose-built for high-demand electric aircraft and propulsion test rigs, offering consistent output and thermal stability without unnecessary complexity. Its streamlined design and proven performance make it a trusted choice for advanced builders and experimental pilots.

Buy Fusion P-FS-XC140HV 140A ESC for large electric aircraft and high-thrust UAV builds.

Technical Specifications of Fusion P-FS-XC140HV Ultra HV ESC for 6S–14S LiPo aircraft and helicopters 

Brand, Model and Product Type

• Brand: Fusion
• Model: P-FS-XC140HV
• Product Type: Fusion P-FS-XC140HV Ultra HV ESC for 6S–14S LiPo aircraft and helicopters, Fusion P-FS-XC140HV 140A ESC with passive aluminum cooling and high-voltage reliability, Fusion P-FS-XC140HV brushless ESC for large-scale RC platforms with 140A continuous current, Fusion P-FS-XC140HV with 22.2V–51.8V input range, 250–500KV motor support, and compact form factor, HV-class ESC for 600–800 class helis, EDF jets, and 3D fixed-wing aircraft

Dimensions and Build

• Form Factor: Compact – designed for tight fuselage installations and high-density builds
• Cooling System: Passive aluminum heat sink – no fan included, relies on thermal conduction
• Weight: Not officially published
• Length: Not officially published
• Width: Not officially published
• Height: Not officially published

Electrical Specifications

• Voltage Range: 6S–14S LiPo (22.2V–51.8V) – supports high-voltage setups for large-scale aircraft
• Continuous Current: 140A – enables sustained full-throttle operation with high-thrust motors
• Burst Current: Not officially published – manufacturer does not specify peak current rating
• Motor KV Range: 250–500KV – compatible with a wide range of propulsion configurations

System Requirements and Limitations

• BEC: Not integrated – external BEC required for receiver and servo power
• Telemetry Support: Not supported – no onboard telemetry feedback available
• Programmability: Not confirmed – manufacturer does not specify programmable features

Connectivity

• Connectors: Not specified – likely compatible with 5.5mm bullet or EC5 connectors based on application class
• Power Input: Standard high-voltage battery connector – supports 6S–14S LiPo packs

Compatibility and Use Cases

• Aircraft Type: Suitable for large fixed-wing aircraft, 600–800 class helicopters, and EDF jets
• Flight Profile: Supports cyclic-intensive 3D maneuvers and sustained high-thrust operation
• Custom Builds: Ideal for experimental platforms, propulsion test rigs, and high-thrust UAVs

What’s in the Box

• 1 × Fusion P-FS-XC140HV Ultra HV ESC for 6S–14S LiPo aircraft and helicopters

What You Require / What You Will Need

• External BEC – required to power receiver and servos
• Compatible motor – within 250–500KV range
• High-voltage battery – 6S to 14S LiPo pack

Sold Separately

• External BEC unit – not included with ESC
• Connectors – battery and motor connectors not specified or pre-installed

We want to make sure your delivery goes smoothly, so here are some important details about our service:

• For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
• Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
• Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
• If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
• We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
• As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
• If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
• For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.