Quanum 40A Multi-Copter Brushless Speed Controller Programmable ESC with 5V/3A BEC (Original)
Quanum 40A Multi-Copter Brushless Speed Controller Programmable ESC with 5V/3A BEC (Original)
Quanum 40A Multi-Copter Brushless Speed Controller Programmable ESC with 5V/3A BEC (Original)
The Quanum 40A Brushless Speed Controller is a programmable Electronic Speed Controller (ESC) specifically engineered for multi-rotor drone platforms, quadcopters, and hexacopters requiring reliable motor commutation and power management. Professional drone operators and hobbyist builders rely on this ESC to deliver precise throttle control, smooth acceleration curves, and consistent performance across varying load conditions. This controller solves critical challenges in drone stability and responsiveness by providing real-time motor speed regulation with integrated 5V/3A Battery Elimination Circuit (BEC) for onboard electronics powering.
Product Overview
The Quanum 40A ESC operates on advanced Field-Oriented Control (FOC) and Sinusoidal PWM commutation principles, enabling smooth brushless motor operation with minimal cogging and vibration. The controller accepts 3-6S LiPo battery inputs (11.1V to 22.2V nominal) and delivers continuous 40 Ampere output with 60 Ampere burst capacity, making it suitable for mid-range multi-copter configurations weighing 2-4 kg. The integrated 5V/3A BEC eliminates the need for separate power distribution modules, directly powering flight controllers, receivers, and sensor payloads. Firmware is fully programmable via onboard programming card, allowing customization of startup behavior, rotation direction, braking intensity, and throttle response curves without external software requirements.
This original Quanum variant incorporates temperature monitoring with automatic throttle cut-off protection, low-voltage battery cutoff (LVC) to prevent over-discharge damage, and under-voltage warning signals. The compact 45x25x12mm form factor with XT60 connector compatibility ensures seamless integration into standard drone frames. Quanum's reputation in the FPV racing and commercial drone communities stems from consistent quality control and reliable performance across thousands of flight hours in demanding applications from aerial photography to precision agriculture monitoring.
Key Specifications
| Specification | Details |
| Product Type | Programmable Brushless Electronic Speed Controller (ESC) |
| Brand | Quanum |
| Model | 40A Multi-Copter ESC |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
| Continuous Current Rating | 40 Amperes |
| Burst Current Rating | 60 Amperes (10 seconds) |
| Input Voltage Range | 3-6S LiPo (11.1V - 22.2V nominal) |
| BEC Output | 5V / 3A regulated |
| Commutation Type | Sinusoidal PWM with FOC support |
| Programmability | Via onboard programming card (no software required) |
| Dimensions | 45 x 25 x 12 mm |
| Weight | Approximately 20 grams |
| Connector Type | XT60 (battery), 3-pin bullet (motor), servo connector (signal) |
Key Features
- 40 Ampere continuous current handling with 60A burst capacity enables reliable operation on 2-4kg multi-rotor platforms without thermal throttling
- Integrated 5V/3A BEC eliminates separate power modules, reducing wiring complexity and improving power distribution efficiency for flight controllers and receiver systems
- Programmable firmware via onboard card allows customization of startup behavior, throttle response curves, rotation direction, and braking intensity without computer dependency
- Temperature monitoring with automatic thermal cut-off protection prevents ESC damage during high-load operations or inadequate cooling conditions
- Low-voltage cutoff (LVC) and under-voltage warning protect LiPo batteries from over-discharge damage and extend battery lifespan
- Sinusoidal PWM commutation delivers smooth motor acceleration with minimal vibration, critical for stable video transmission in FPV applications
Applications and Use Cases
- Quadcopter and hexacopter platforms for aerial photography and videography requiring smooth throttle control and stable power delivery to brushless motors
- FPV racing drones where responsive acceleration and minimal vibration are essential for competitive performance and video quality
- Commercial drone operations including precision agriculture, infrastructure inspection, and surveying applications requiring reliable multi-hour flight operations
- DIY drone builders and hobbyists constructing custom multi-rotor platforms who need programmable ESC solutions with integrated power distribution
- Educational robotics programs teaching drone dynamics, motor control systems, and autonomous flight mechanics through hands-on platform development
How to Use
Installation begins by identifying the three motor phases (typically labeled A, B, C or colored red, black, white) and connecting them to the ESC motor output terminals. The signal wire connects to your flight controller's ESC output pin, while the XT60 connector attaches to your LiPo battery. The integrated BEC automatically provides 5V power to your flight controller and receiver without requiring a separate power module. Before first flight, you must calibrate the ESC throttle range by connecting the battery with the throttle stick at maximum, then reducing to minimum position while powered on. This calibration ensures the ESC correctly interprets your transmitter's throttle commands across the full range.
Programming customizations are performed using the included programming card by inserting it into the ESC's programming port and following the beep sequences to navigate menu options. You can adjust startup power (soft start to prevent motor jerking), rotation direction reversal, braking intensity (useful for acrobatic flying), and throttle response curves. For temperature-sensitive applications, configure the thermal cut-off threshold and enable low-voltage warning beeps at your preferred battery voltage threshold. Always test the motor spin direction on the ground before flight, ensuring all three motors rotate in their intended directions for stable flight control.
Frequently Asked Questions
What is the difference between this 40A ESC and higher rated 50A or 60A controllers?
The 40A rating indicates continuous current capacity, making this ESC optimal for multi-rotor platforms weighing 2-4kg with moderate motor KV ratings (400-900 KV). Higher rated ESCs (50A, 60A) are designed for heavier platforms or higher-KV motors requiring greater current draw. Selecting the correct rating prevents unnecessary weight and cost while ensuring adequate power headroom for your specific platform.
Can I use this ESC with different battery cell counts (3S, 4S, 5S, 6S)?
Yes, the Quanum 40A ESC supports 3-6S LiPo batteries (11.1V to 22.2V nominal). The internal voltage regulator automatically adjusts to your battery configuration. However, verify your motors are rated for your chosen voltage, as motor KV and battery voltage directly determine maximum RPM. A 900KV motor on 6S will spin significantly faster than on 3S, affecting thrust and current draw.
What does the 5V/3A BEC output power, and is it sufficient for my flight controller?
The 5V/3A BEC powers your flight controller, receiver, and auxiliary sensors like GPS modules or telemetry units. Most modern flight controllers consume 500mA-1A, leaving 2-2.5A for receiver and sensors. If your total payload exceeds 3A at 5V, you'll need an external power distribution board. Always calculate your total 5V current draw before flight to prevent BEC overload and potential in-flight power loss.
How do I program the ESC without a computer or software?
The Quanum 40A includes an onboard programming card that plugs into the ESC's programming port. You navigate menus using beep sequences: insert the card, power the ESC via battery, and listen to beep patterns indicating menu options. Press the card button to select options and advance through menus. This mechanical programming method requires no software installation, making it ideal for field adjustments and quick parameter changes during testing.
What happens if my ESC reaches maximum temperature during flight?
The ESC includes thermal monitoring that reduces throttle output when temperature exceeds safe limits, preventing complete power loss. However, sustained high temperatures indicate inadequate cooling or excessive current draw. Ensure proper airflow around the ESC, verify your motor selection isn't drawing excessive current for your platform weight, and consider adding an aluminum heatsink if operating in high-ambient-temperature environments.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
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- Returns: 7-day return policy on manufacturing defects only
Buy Quanum 40A Multi-Copter Brushless Speed Controller Programmable ESC with 5V/3A BEC (Original) Online in India
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