3D Printer Heat Bed High Power MOSFET Module 25A
Original price was: 250.00 EGP.200.00 EGPCurrent price is: 200.00 EGP.
The Heat Bed High Power MOSFET Module 25A is a power expansion board for controlling high-current 3D-printer heated beds. It transfers the heavy electrical load from the printer motherboard to an external MOSFET, helping protect the motherboard connectors from overheating or damage.
Heat Bed High Power MOSFET Module 25A
The Heat Bed High Power MOSFET Module 25A is designed to safely control high-current heated beds in 3D printers. Instead of passing the full heated-bed current through the printer motherboard, the module draws power directly from the external power supply.
The printer control board only sends the switching signal. Therefore, the heavy electrical load passes through the external MOSFET module. This arrangement helps reduce stress on motherboard terminals, connectors, and onboard MOSFET components.
The module supports common 12V and 24V 3D-printer systems. In addition, its large aluminum heatsink improves heat dissipation during operation. It is especially useful when installing a larger heated bed or replacing a standard bed with a higher-power model.
Main Features
- External high-power MOSFET switching module
- Maximum rated load current up to 25A
- Recommended for 12V and 24V systems
- Supports PWM heated-bed control
- Large aluminum heatsink for heat dissipation
- Reduces the current passing through the printer motherboard
- Helps protect controller terminals from overheating
- Screw terminals for power and load connections
- Compatible with many 3D-printer controller boards
- Suitable for heated beds and other resistive DC loads
Technical Specifications
- Product Type: Heated-bed power expansion module
- Input Voltage Range: 12V to 50V DC
- Recommended Operating Voltage: 12V to 24V DC
- Maximum Rated Current: 25A
- Module Dimensions: Approximately 70 × 45 × 29mm
- Mounting-Hole Distance: Approximately 62.8 × 37.8mm
- Cooling: Integrated aluminum heatsink
- Optional Fan Size: 30 × 30mm
- Control Method: MOSFET switching
- Suitable Load: DC heated beds and resistive heaters
Common Applications
The Heat Bed High Power MOSFET Module 25A can be used for:
- 3D-printer heated beds
- RAMPS-based 3D printers
- MKS and compatible controller boards
- Custom CNC heating systems
- High-current DC resistive heaters
- DIY 3D-printer upgrades
- Protecting motherboard heated-bed outputs
Basic Connection Guide
Connect the external power supply to the module’s power-input terminals. Next, connect the heated bed to the output terminals. Finally, connect the supplied control cable between the MOSFET signal input and the heated-bed output on the printer motherboard.
The positive and negative polarity markings must be followed carefully. Furthermore, the power supply voltage must match the rated voltage of the heated bed.
Important Safety Notes
The 25A value is the module’s maximum rating and should not be treated as a guaranteed continuous current under every installation condition. Continuous high-current operation may require additional airflow or a 30mm cooling fan.
Always use thick wires suitable for the actual load current. Also, tighten all screw terminals securely because loose connections can generate excessive heat. Installing a correctly rated fuse on the power-input line is strongly recommended.
This module does not regulate temperature by itself. The printer motherboard, firmware, and temperature sensor remain responsible for controlling the heated bed.
