• A black rectangular electronic box with rounded corners, shown on a white background with text overlays reading '1000-1500W Motor', 'Used for 12 Mosfets', and 'Extra large Box E-Brake Accessories'.
  • Three black electronic controller boxes shown on a white background with blue branded corner graphics. The products appear to be the EZKT controller box components, with text reading EZKT, CONTROLLER BOX, and 250W-1500W.
  • Black metal door stopper with dimension measurements for small size, shown from front, back, and side views on a white background with blue text.
  • Technical dimension diagram of a large size motor controller enclosure, showing front, back, and side views with red measurement lines and labels, plus a blue size table on the right.
  • Extra large black motor controller heatsink shown from front and back with red dimension lines and text indicating measurements 105mm by 250mm, plus a small inset of the controller and a blue size table.
  • A 250W-350W brushed DC motor driver power supply kit shown in an exploded view with dimension measurements (85mm/3.35in length, 51mm/2in width, 30mm/1.
  • An electronic motor controller kit diagram showing a black plastic enclosure, a silver metal power supply module, and attached black/red wire leads, with text indicating use for a 250W-750W motor and dimension labels. A small inset shows extension screws.
1 7

Charge My E-Bike

Ebike Plastic Controller Box

Ebike Plastic Controller Box

$55.65 USD
$18.55 USD $55.65 USD
Sale Sold out
Shipping calculated at checkout.
Color

Ebike Plastic Controller Box | Waterproof IPX4 Controller Case for BAFANG E-Bikes

Protect and organize your eBike controller with this Ebike Plastic Controller Box, designed for compatible BAFANG electric bicycles, mountain bikes, and eBike conversion systems.

Available in Small, Large, and Extra Large sizes, the controller box is designed around different motor/controller power levels and MOSFET configurations, making it easier to select an enclosure for your particular setup.

The enclosure features an IPX4 waterproof rating and provides a cleaner, more protected location for your controller and associated wiring.

Controller Box Sizes

Choose the size based on your controller and MOSFET configuration.

Box Size Recommended Motor Power MOSFET Configuration
Small 250W–350W 6 MOSFET
Large 250W–750W 6–9 MOSFETs
Extra Large 1000W–1500W 12 MOSFET

Important: Motor wattage is only a general guide. Always compare your controller's actual dimensions and MOSFET configuration with the enclosure before ordering.

Small Controller Box

The Small enclosure is recommended by the supplier for:

  • 250W motors

  • 350W motors

  • 6-MOSFET controllers

This size is suitable for compact eBike conversion systems where space is limited.

Large Controller Box

The Large enclosure is recommended for:

  • 250W motors

  • 350W motors

  • 500W motors

  • 750W motors

  • 6–9 MOSFET controllers

This provides additional room for larger controllers and wiring compared with the Small version.

Extra Large Controller Box

The Extra Large enclosure is recommended for:

  • 1000W motors

  • 1500W motors

  • 12-MOSFET controllers

This option is designed for larger, higher-power eBike conversion systems.

IPX4 Water Protection

The controller box is listed with an IPX4 waterproof rating.

IPX4 indicates protection against water splashing from different directions under standardized testing conditions.

It does not mean the enclosure is waterproof for submersion or pressure washing.

For outdoor eBike use, proper installation and cable sealing are still important.

Designed for eBike Conversion Systems

This controller box is suitable for:

  • BAFANG eBikes

  • Electric mountain bikes

  • Electric bicycles

  • eBike conversion kits

  • DIY electric bicycles

  • Hub motor systems

  • Custom eBike builds

Important Controller Compatibility

The enclosure is designed around controller size and MOSFET configuration.

Before ordering, check:

  • Controller dimensions

  • MOSFET count

  • Controller power rating

  • Cable exit locations

  • Connector placement

  • Available mounting space

Do not select the box based solely on motor wattage.

A 750W controller from one manufacturer may have different dimensions from another 750W controller.

Product Specifications

Specification Details
Product Type eBike Plastic Controller Box
Application Electric Bicycle / eBike Conversion
Material Plastic
Waterproof Grade IPX4
Small Box 250W–350W / 6 MOSFET
Large Box 250W–750W / 6–9 MOSFET
Extra Large Box 1000W–1500W / 12 MOSFET
Brand No Brand
Origin China
Quantity 1 Controller Box

What's Included

Package includes:

  • 1 × eBike Plastic Controller Box

Controller, battery, motor, charger, wiring, and other electrical components are not included.

Installation Tips

  1. Disconnect the battery before working on your eBike electrical system.

  2. Confirm your controller dimensions before installation.

  3. Verify the MOSFET configuration.

  4. Place the controller securely inside the enclosure.

  5. Make sure wires are not pinched or sharply bent.

  6. Keep connectors properly protected.

  7. Ensure the controller has adequate cooling.

  8. Secure the box firmly to the bicycle before riding.

  9. Avoid exposing the enclosure to conditions beyond its IPX4 rating.

Frequently Asked Questions

What size controller box do I need?

Use the controller's physical dimensions and MOSFET count to determine the appropriate size.

Small: 250W–350W, 6 MOSFET
Large: 250W–750W, 6–9 MOSFET
Extra Large: 1000W–1500W, 12 MOSFET

Is the controller included?

No. The package includes one plastic controller box only.

Is this box waterproof?

It has an IPX4 waterproof rating, meaning it is designed to protect against splashing water. It is not designed for submersion.

Will this fit a BAFANG controller?

It is marketed for BAFANG-compatible eBike applications, but you should verify your controller's dimensions and MOSFET configuration before ordering.

Can the Large box fit a 1000W controller?

The supplier recommends the Large box for 250W–750W applications and the Extra Large box for 1000W–1500W / 12-MOSFET applications. For a 1000W controller, the Extra Large option is the safer choice based on the supplied specifications.

Does the box include mounting hardware?

The supplied packing list only specifies 1 × controller box. Mounting hardware should not be assumed to be included.

Shop eBike Controllers & Power Units

Looking for a controller to install in your new enclosure?

Browse our eBike Controllers & Power Units collection for compatible eBike controllers, power units, and electrical components.

Power Your Ride. Charge Anywhere. Ride Longer.


eBike controller box, BAFANG controller box, electric bike controller case, eBike controller enclosure, IPX4 controller box, 6 MOSFET controller box, 9 MOSFET controller box, 12 MOSFET controller box, eBike conversion controller case


View full details