OUT-4 is a four-channel protected low-side MOSFET output module for Arduino, ESP32, STM32, Raspberry Pi and similar controllers. It lets small logic signals control compatible DC loads without asking the controller GPIO pins to supply the load current directly.
Ships from Texas · 30-day returns · One-year KI Maker limited warranty · Checkout through eBay
A controller GPIO pin is intended to produce a logic signal, not directly power a relay coil, solenoid, valve, fan or 12V/24V lighting load. OUT-4 places a protected MOSFET switching stage between the controller and each load while keeping the wiring and channel status visible.
Connect the positive side of each load to its appropriately rated external 12V or 24V DC supply. Connect the negative side of the load to the corresponding OUT terminal. When the matching controller input is HIGH, the MOSFET switches the OUT terminal toward ground and the load turns on.
Use an external low-voltage DC supply that matches the load voltage and can provide the required current.
Connect controller ground, OUT-4 logic ground and load-supply negative as specified in the wiring documentation.
A controller HIGH signal commands the corresponding low-side output and illuminates its status indicator.
OUT-4 sinks current; it does not source load voltage.
The positive side of the load remains connected to its external DC supply. OUT-4 switches the load's return path. The board does not create 12V or 24V and does not provide galvanic isolation.
These values are a product-selection summary. Review the current specification sheet and owner's manual for complete wiring, simultaneous-load and operating-temperature requirements.
| Function | Published specification |
|---|---|
| Number of channels | Four independent low-side MOSFET output channels: OUT1 through OUT4. |
| Load applications | Compatible 12V and 24V DC loads. Low-voltage DC only. |
| Channel current | Up to 1.0A on an individual channel, subject to the shared board-current and simultaneous-load limits. |
| Total board current | 3.0A maximum shared across all active channels. Four equally loaded channels must therefore remain at or below 0.75A per channel. |
| Logic inputs | Four controller-compatible active-high inputs for 3.3V or 5V GPIO systems. |
| Output topology | Non-isolated N-channel MOSFET low-side switching. Load and controller grounds must be connected as documented. |
| Output state | Logic input HIGH commands the corresponding output ON; logic input LOW commands it OFF. |
| Protection | Shared input overcurrent protection plus onboard transient and MOSFET-gate protection. Protection does not replace correct load sizing and wiring. |
| Status indication | Individual visual status indication for each commanded output channel. |
| Connections | Screw-terminal load connections and clearly labeled controller interface connections. |
The 3.0A limit is shared by the complete board.
“Up to 1.0A per channel” does not mean four channels may each carry 1.0A simultaneously. The total continuous current through the board must remain within 3.0A and all published thermal limits.
KI Maker publishes the information needed to evaluate and use OUT-4. The product-page values are summaries; the current controlled documents remain the detailed reference.
OUT-4 is designed for controller-compatible 3.3V and 5V active-high logic signals when wired according to the documentation. The controller commands the MOSFET; it does not supply the load current.
No. The board has a shared 3.0A total-current limit. With four equally loaded channels active, each channel must remain at or below 0.75A, subject to the documented thermal conditions.
No. The loads require an external DC supply. OUT-4 is a low-side switching interface and controls the return path to ground.
No. OUT-4 is a non-isolated MOSFET output board and requires the controller and load circuit to share the documented ground reference.
No. OUT-4 provides one-direction low-side switching. Motor reversal and electronic braking require an appropriately rated H-bridge or motor controller.
Compatible low-voltage DC inductive loads may be used within the published voltage, current, transient and thermal limits. Verify startup or inrush current and follow the current manual's wiring requirements.
Use one 18–30V DC supply to provide regulated 12V, 5V and 3.3V rails plus documented controller interfaces.
Available now · $37.50
Monitor four polarity-independent 9–30V DC field signals using active-high 3.3V or 5V controller inputs.
Available now · $19.95
OUT-4 is developed by KI Maker, a product brand of Kuster Induction Solutions LLC. It is supplied as an assembled, clearly labeled low-voltage output-interface board with published operating limits and supporting documentation.
OUT-4 is a four-channel protected low-side MOSFET output module for Arduino, ESP32, STM32, Raspberry Pi and similar controllers. It lets small logic signals control compatible DC loads without asking the controller GPIO pins to supply the load current directly.
Ships from Texas · 30-day returns · One-year KI Maker limited warranty · Checkout through eBay
A controller GPIO pin is intended to produce a logic signal, not directly power a relay coil, solenoid, valve, fan or 12V/24V lighting load. OUT-4 places a protected MOSFET switching stage between the controller and each load while keeping the wiring and channel status visible.
Connect the positive side of each load to its appropriately rated external 12V or 24V DC supply. Connect the negative side of the load to the corresponding OUT terminal. When the matching controller input is HIGH, the MOSFET switches the OUT terminal toward ground and the load turns on.
Use an external low-voltage DC supply that matches the load voltage and can provide the required current.
Connect controller ground, OUT-4 logic ground and load-supply negative as specified in the wiring documentation.
A controller HIGH signal commands the corresponding low-side output and illuminates its status indicator.
OUT-4 sinks current; it does not source load voltage.
The positive side of the load remains connected to its external DC supply. OUT-4 switches the load's return path. The board does not create 12V or 24V and does not provide galvanic isolation.
These values are a product-selection summary. Review the current specification sheet and owner's manual for complete wiring, simultaneous-load and operating-temperature requirements.
| Function | Published specification |
|---|---|
| Number of channels | Four independent low-side MOSFET output channels: OUT1 through OUT4. |
| Load applications | Compatible 12V and 24V DC loads. Low-voltage DC only. |
| Channel current | Up to 1.0A on an individual channel, subject to the shared board-current and simultaneous-load limits. |
| Total board current | 3.0A maximum shared across all active channels. Four equally loaded channels must therefore remain at or below 0.75A per channel. |
| Logic inputs | Four controller-compatible active-high inputs for 3.3V or 5V GPIO systems. |
| Output topology | Non-isolated N-channel MOSFET low-side switching. Load and controller grounds must be connected as documented. |
| Output state | Logic input HIGH commands the corresponding output ON; logic input LOW commands it OFF. |
| Protection | Shared input overcurrent protection plus onboard transient and MOSFET-gate protection. Protection does not replace correct load sizing and wiring. |
| Status indication | Individual visual status indication for each commanded output channel. |
| Connections | Screw-terminal load connections and clearly labeled controller interface connections. |
The 3.0A limit is shared by the complete board.
“Up to 1.0A per channel” does not mean four channels may each carry 1.0A simultaneously. The total continuous current through the board must remain within 3.0A and all published thermal limits.
KI Maker publishes the information needed to evaluate and use OUT-4. The product-page values are summaries; the current controlled documents remain the detailed reference.
OUT-4 is designed for controller-compatible 3.3V and 5V active-high logic signals when wired according to the documentation. The controller commands the MOSFET; it does not supply the load current.
No. The board has a shared 3.0A total-current limit. With four equally loaded channels active, each channel must remain at or below 0.75A, subject to the documented thermal conditions.
No. The loads require an external DC supply. OUT-4 is a low-side switching interface and controls the return path to ground.
No. OUT-4 is a non-isolated MOSFET output board and requires the controller and load circuit to share the documented ground reference.
No. OUT-4 provides one-direction low-side switching. Motor reversal and electronic braking require an appropriately rated H-bridge or motor controller.
Compatible low-voltage DC inductive loads may be used within the published voltage, current, transient and thermal limits. Verify startup or inrush current and follow the current manual's wiring requirements.
Use one 18–30V DC supply to provide regulated 12V, 5V and 3.3V rails plus documented controller interfaces.
Available now · $37.50
Monitor four polarity-independent 9–30V DC field signals using active-high 3.3V or 5V controller inputs.
Available now · $19.95
OUT-4 is developed by KI Maker, a product brand of Kuster Induction Solutions LLC. It is supplied as an assembled, clearly labeled low-voltage output-interface board with published operating limits and supporting documentation.