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E-Bike Motor Controller 6-inch 24V for Hub Motor 350W
The E-Bike Motor Controller 6-inch 24V is a dedicated electronic speed controller designed specifically for 350W hub motor e-bike systems, managing power delivery and acceleration through PWM (Pulse Width Modulation) technology. Professional e-bike assemblers, DIY electric vehicle enthusiasts, and commercial e-mobility service providers rely on this controller to regulate motor performance, battery consumption, and braking efficiency in urban commuting and last-mile delivery applications. This controller solves the critical challenge of smooth torque delivery, overload protection, and battery voltage regulation in 24V hub motor systems, preventing motor burnout and extending drivetrain lifespan.
Product Overview
This 6-inch E-Bike Motor Controller operates on advanced PWM switching technology that continuously adjusts the duty cycle between 0-100% to modulate power output from your 24V battery pack to the hub motor. The controller accepts throttle input signals (typically 0-5V analog or hall sensor signals) and translates them into precise motor speed commands, while simultaneously monitoring current draw to prevent thermal damage. The compact 6-inch form factor allows mounting directly on the e-bike frame near the motor, minimizing wiring complexity and voltage drop across long cable runs. Built-in protection circuits include over-current shutdown, under-voltage lockout, and thermal cutoff, ensuring your 350W motor operates within safe parameters even during aggressive acceleration or hill climbing scenarios.
The controller features a sealed aluminum housing rated for IP65 dust and water resistance, making it suitable for urban commuting in monsoon conditions. Internal capacitor banks smooth voltage ripple from the battery pack, reducing electromagnetic interference and improving throttle response precision. The 24V nominal rating accommodates standard 6S lithium battery packs (nominal 22.2V) and lead-acid configurations, with input voltage range typically 18-30V to account for charge state variations. Hall sensor compatibility enables regenerative braking in compatible hub motors, recovering kinetic energy during deceleration to extend range by 10-15% in city riding conditions.
Key Specifications
| Specification | Details |
| Product Type | PWM Motor Speed Controller for E-Bike Hub Motors |
| Brand | Original Manufacturer |
| 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 |
| Nominal Voltage | 24V DC |
| Input Voltage Range | 18-30V DC |
| Maximum Power Output | 350W at 24V nominal |
| Maximum Current Rating | 15-20A continuous |
| Control Method | PWM (Pulse Width Modulation) |
| Throttle Input | 0-5V analog or hall sensor compatible |
| Housing Material | Aluminum alloy with IP65 sealing |
| Dimensions | 6 inches length, compact mounting bracket included |
| Weight | Approximately 200-250 grams |
| Protection Features | Over-current shutdown, under-voltage lockout, thermal cutoff |
Key Features
- PWM Switching Technology: Delivers smooth variable speed control from 0-100% motor power with minimal energy loss, enabling precise acceleration profiles for different riding conditions
- Over-Current Protection: Integrated current sensing circuit automatically shuts down motor drive if current exceeds 20A threshold, protecting motor windings and battery from damage during stall conditions
- Under-Voltage Lockout: Prevents controller operation when battery voltage drops below 18V, protecting lithium cells from over-discharge damage that reduces lifespan
- Thermal Management: Built-in temperature sensor triggers automatic power reduction when internal junction temperature exceeds 85 degrees Celsius, preventing component failure in summer riding
- Hall Sensor Compatibility: Supports regenerative braking through hall effect sensor feedback, enabling energy recovery during downhill and braking scenarios
- IP65 Water Resistance: Sealed aluminum housing protects internal circuits from monsoon moisture and road spray, extending operational life in Indian weather conditions
- Compact 6-inch Form Factor: Space-efficient design fits within standard e-bike frame geometry without requiring external enclosure modifications
- Low Voltage Drop: Optimized PCB layout and copper traces minimize power dissipation, delivering maximum 350W to motor with minimal heat generation
Applications and Use Cases
- Urban E-Bike Commuting: Enables smooth acceleration from traffic lights and precise speed control on congested city roads, with regenerative braking recovering energy during frequent stop-and-go cycles
- Last-Mile Delivery Services: Supports loaded e-cargo bikes carrying 25-30kg packages with consistent torque delivery on inclines, protecting motor from thermal stress during continuous operation
- DIY E-Bike Conversion Projects: Allows conversion of standard bicycles to electric power by controlling aftermarket 350W hub motors with existing throttle or pedal-assist sensor integration
- Hilly Terrain Navigation: Manages motor current draw during sustained climbing on 8-12 degree slopes, preventing voltage sag that would reduce motor torque and limit hill-climbing ability
- E-Bike Rental Fleet Management: Provides reliable speed control across multiple identical units in bike-sharing systems, with over-current protection preventing motor damage from user abuse
- Cargo and Delivery Bikes: Handles variable load conditions from empty to fully loaded states, maintaining consistent acceleration response through adaptive current limiting
How to Use
Begin installation by disconnecting your 24V battery pack completely and verifying all connections are de-energized. Mount the controller on your e-bike frame using the included aluminum bracket, positioning it near the hub motor to minimize cable runs. Connect the thick red and black power cables directly to your 24V battery positive and negative terminals respectively, ensuring connections are crimped and soldered for zero resistance. Connect the motor phase wires (typically three wires for brushless hub motors) to the controller output terminals, matching wire colors or testing polarity if unmarked. For throttle control, connect your 0-5V throttle potentiometer to the signal input pin, or if using hall sensors for regenerative braking, connect the three hall sensor wires to the designated hall input connector.
Before powering on, verify all connections with a multimeter to ensure correct polarity and no short circuits exist. Apply power and test throttle response at low voltage first by gently twisting the throttle to confirm smooth acceleration from zero to full speed. If the motor does not respond, check throttle voltage output with a multimeter to confirm it ranges from 0-5V. For regenerative braking systems, test braking response by spinning the wheel by hand while the throttle is released, listening for the characteristic resistance that indicates energy recovery is functioning. Once verified, seal all exposed connectors with waterproof heat shrink tubing to maintain IP65 protection in wet conditions. Monitor controller temperature during first 30 minutes of operation, ensuring it does not exceed 50 degrees Celsius under normal riding conditions.
Frequently Asked Questions
What is the maximum continuous current this controller can handle safely?
This 24V controller is rated for 15-20A continuous current draw, which corresponds to approximately 360-480W power output at full 24V nominal voltage. Exceeding 20A triggers the over-current protection circuit, which shuts down motor drive within milliseconds to prevent thermal damage. For 350W motors, typical continuous current draw is 14-16A under normal riding, leaving safety margin for peak acceleration pulses up to 20A lasting 2-3 seconds.
Can this controller work with 36V or 48V battery systems?
No, this controller is specifically designed and tested for 24V nominal systems with maximum input voltage of 30V. Connecting 36V or 48V batteries will immediately damage internal MOSFETs and capacitors rated only for 30V maximum. For higher voltage systems, you must purchase controllers specifically rated for 36V or 48V input. Using wrong voltage is not covered under warranty and voids all protection guarantees.
Does this controller support pedal-assist sensor (PAS) integration?
Yes, this controller can be integrated with pedal-assist sensors through the throttle input pin. A PAS sensor generates variable 0-5V signal proportional to pedaling cadence, which the controller interprets identically to throttle input. You can wire the PAS sensor output directly to the signal input pin, or use a simple OR-gate circuit to combine both throttle and PAS signals if you want both control methods simultaneously. However, the controller itself does not include PAS firmware; it simply responds to analog voltage input.
What happens if the controller overheats during operation?
When internal temperature exceeds 85 degrees Celsius, the thermal cutoff circuit automatically reduces PWM duty cycle, limiting motor power output to approximately 50% until temperature drops below 75 degrees Celsius. This thermal throttling protects the controller from permanent damage during extended hill climbing or continuous high-current operation. If overheating occurs repeatedly, improve cooling by ensuring adequate airflow around the aluminum housing, or reduce continuous current draw by using lower throttle settings on steep inclines.
Can I use this controller with brushed DC hub motors instead of brushless motors?
Yes, this PWM controller works with both brushed and brushless hub motors. For brushed motors, simply connect the positive and negative motor leads to the controller output terminals, ignoring the hall sensor pins. Brushed motors do not require hall sensor feedback for commutation since the mechanical commutator handles switching internally. However, you lose regenerative braking capability with brushed motors since they cannot generate back-EMF signals compatible with energy recovery circuits.
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.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai,
Buy E-Bike Motor Controller 6-inch 24V for Hub Motor 350W Online in India
Purchase the E-Bike Motor Controller 6-inch 24V for Hub Motor 350W online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat.
Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.
E-Bike Motor Controller 6-inch 24V for Hub Motor 350W
The E-Bike Motor Controller 6-inch 24V is a dedicated electronic speed controller designed specifically for 350W hub motor e-bike systems, managing power delivery and acceleration through PWM (Pulse Width Modulation) technology. Professional e-bike assemblers, DIY electric vehicle enthusiasts, and commercial e-mobility service providers rely on this controller to regulate motor performance, battery consumption, and braking efficiency in urban commuting and last-mile delivery applications. This controller solves the critical challenge of smooth torque delivery, overload protection, and battery voltage regulation in 24V hub motor systems, preventing motor burnout and extending drivetrain lifespan.
Product Overview
This 6-inch E-Bike Motor Controller operates on advanced PWM switching technology that continuously adjusts the duty cycle between 0-100% to modulate power output from your 24V battery pack to the hub motor. The controller accepts throttle input signals (typically 0-5V analog or hall sensor signals) and translates them into precise motor speed commands, while simultaneously monitoring current draw to prevent thermal damage. The compact 6-inch form factor allows mounting directly on the e-bike frame near the motor, minimizing wiring complexity and voltage drop across long cable runs. Built-in protection circuits include over-current shutdown, under-voltage lockout, and thermal cutoff, ensuring your 350W motor operates within safe parameters even during aggressive acceleration or hill climbing scenarios.
The controller features a sealed aluminum housing rated for IP65 dust and water resistance, making it suitable for urban commuting in monsoon conditions. Internal capacitor banks smooth voltage ripple from the battery pack, reducing electromagnetic interference and improving throttle response precision. The 24V nominal rating accommodates standard 6S lithium battery packs (nominal 22.2V) and lead-acid configurations, with input voltage range typically 18-30V to account for charge state variations. Hall sensor compatibility enables regenerative braking in compatible hub motors, recovering kinetic energy during deceleration to extend range by 10-15% in city riding conditions.
Key Specifications
| Specification | Details |
| Product Type | PWM Motor Speed Controller for E-Bike Hub Motors |
| Brand | Original Manufacturer |
| 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 |
| Nominal Voltage | 24V DC |
| Input Voltage Range | 18-30V DC |
| Maximum Power Output | 350W at 24V nominal |
| Maximum Current Rating | 15-20A continuous |
| Control Method | PWM (Pulse Width Modulation) |
| Throttle Input | 0-5V analog or hall sensor compatible |
| Housing Material | Aluminum alloy with IP65 sealing |
| Dimensions | 6 inches length, compact mounting bracket included |
| Weight | Approximately 200-250 grams |
| Protection Features | Over-current shutdown, under-voltage lockout, thermal cutoff |
Key Features
- PWM Switching Technology: Delivers smooth variable speed control from 0-100% motor power with minimal energy loss, enabling precise acceleration profiles for different riding conditions
- Over-Current Protection: Integrated current sensing circuit automatically shuts down motor drive if current exceeds 20A threshold, protecting motor windings and battery from damage during stall conditions
- Under-Voltage Lockout: Prevents controller operation when battery voltage drops below 18V, protecting lithium cells from over-discharge damage that reduces lifespan
- Thermal Management: Built-in temperature sensor triggers automatic power reduction when internal junction temperature exceeds 85 degrees Celsius, preventing component failure in summer riding
- Hall Sensor Compatibility: Supports regenerative braking through hall effect sensor feedback, enabling energy recovery during downhill and braking scenarios
- IP65 Water Resistance: Sealed aluminum housing protects internal circuits from monsoon moisture and road spray, extending operational life in Indian weather conditions
- Compact 6-inch Form Factor: Space-efficient design fits within standard e-bike frame geometry without requiring external enclosure modifications
- Low Voltage Drop: Optimized PCB layout and copper traces minimize power dissipation, delivering maximum 350W to motor with minimal heat generation
Applications and Use Cases
- Urban E-Bike Commuting: Enables smooth acceleration from traffic lights and precise speed control on congested city roads, with regenerative braking recovering energy during frequent stop-and-go cycles
- Last-Mile Delivery Services: Supports loaded e-cargo bikes carrying 25-30kg packages with consistent torque delivery on inclines, protecting motor from thermal stress during continuous operation
- DIY E-Bike Conversion Projects: Allows conversion of standard bicycles to electric power by controlling aftermarket 350W hub motors with existing throttle or pedal-assist sensor integration
- Hilly Terrain Navigation: Manages motor current draw during sustained climbing on 8-12 degree slopes, preventing voltage sag that would reduce motor torque and limit hill-climbing ability
- E-Bike Rental Fleet Management: Provides reliable speed control across multiple identical units in bike-sharing systems, with over-current protection preventing motor damage from user abuse
- Cargo and Delivery Bikes: Handles variable load conditions from empty to fully loaded states, maintaining consistent acceleration response through adaptive current limiting
How to Use
Begin installation by disconnecting your 24V battery pack completely and verifying all connections are de-energized. Mount the controller on your e-bike frame using the included aluminum bracket, positioning it near the hub motor to minimize cable runs. Connect the thick red and black power cables directly to your 24V battery positive and negative terminals respectively, ensuring connections are crimped and soldered for zero resistance. Connect the motor phase wires (typically three wires for brushless hub motors) to the controller output terminals, matching wire colors or testing polarity if unmarked. For throttle control, connect your 0-5V throttle potentiometer to the signal input pin, or if using hall sensors for regenerative braking, connect the three hall sensor wires to the designated hall input connector.
Before powering on, verify all connections with a multimeter to ensure correct polarity and no short circuits exist. Apply power and test throttle response at low voltage first by gently twisting the throttle to confirm smooth acceleration from zero to full speed. If the motor does not respond, check throttle voltage output with a multimeter to confirm it ranges from 0-5V. For regenerative braking systems, test braking response by spinning the wheel by hand while the throttle is released, listening for the characteristic resistance that indicates energy recovery is functioning. Once verified, seal all exposed connectors with waterproof heat shrink tubing to maintain IP65 protection in wet conditions. Monitor controller temperature during first 30 minutes of operation, ensuring it does not exceed 50 degrees Celsius under normal riding conditions.
Frequently Asked Questions
What is the maximum continuous current this controller can handle safely?
This 24V controller is rated for 15-20A continuous current draw, which corresponds to approximately 360-480W power output at full 24V nominal voltage. Exceeding 20A triggers the over-current protection circuit, which shuts down motor drive within milliseconds to prevent thermal damage. For 350W motors, typical continuous current draw is 14-16A under normal riding, leaving safety margin for peak acceleration pulses up to 20A lasting 2-3 seconds.
Can this controller work with 36V or 48V battery systems?
No, this controller is specifically designed and tested for 24V nominal systems with maximum input voltage of 30V. Connecting 36V or 48V batteries will immediately damage internal MOSFETs and capacitors rated only for 30V maximum. For higher voltage systems, you must purchase controllers specifically rated for 36V or 48V input. Using wrong voltage is not covered under warranty and voids all protection guarantees.
Does this controller support pedal-assist sensor (PAS) integration?
Yes, this controller can be integrated with pedal-assist sensors through the throttle input pin. A PAS sensor generates variable 0-5V signal proportional to pedaling cadence, which the controller interprets identically to throttle input. You can wire the PAS sensor output directly to the signal input pin, or use a simple OR-gate circuit to combine both throttle and PAS signals if you want both control methods simultaneously. However, the controller itself does not include PAS firmware; it simply responds to analog voltage input.
What happens if the controller overheats during operation?
When internal temperature exceeds 85 degrees Celsius, the thermal cutoff circuit automatically reduces PWM duty cycle, limiting motor power output to approximately 50% until temperature drops below 75 degrees Celsius. This thermal throttling protects the controller from permanent damage during extended hill climbing or continuous high-current operation. If overheating occurs repeatedly, improve cooling by ensuring adequate airflow around the aluminum housing, or reduce continuous current draw by using lower throttle settings on steep inclines.
Can I use this controller with brushed DC hub motors instead of brushless motors?
Yes, this PWM controller works with both brushed and brushless hub motors. For brushed motors, simply connect the positive and negative motor leads to the controller output terminals, ignoring the hall sensor pins. Brushed motors do not require hall sensor feedback for commutation since the mechanical commutator handles switching internally. However, you lose regenerative braking capability with brushed motors since they cannot generate back-EMF signals compatible with energy recovery circuits.
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.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai,
Buy E-Bike Motor Controller 6-inch 24V for Hub Motor 350W Online in India
Purchase the E-Bike Motor Controller 6-inch 24V for Hub Motor 350W online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat.
Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.