PWR INTF combines regulated 12V, 5V and 3.3V power rails with fused input-voltage distribution and practical controller interfaces. It is designed to replace scattered converters, splitters and loosely labeled wiring in low-voltage automation, test fixtures and maker projects.
Ships from Texas · 30-day returns · One-year KI Maker limited warranty · Checkout through eBay
Many 24V controller projects also need 12V accessories, 5V peripherals and 3.3V logic. Building those rails from separate converter modules creates more connections, more unlabeled wiring and more opportunities for mistakes. PWR INTF centralizes those functions on one documented board.
This table is a product-selection summary. Read the current specification sheet and owner's manual before wiring the board or applying power.
| Function | Published specification |
|---|---|
| Main input | 18–30V DC. Low-voltage DC only. |
| 12V regulated rail | 12V DC, up to 1.0A within the documented operating and thermal limits. |
| 5V regulated rail | 5V DC, up to 1.0A within the documented operating and thermal limits. |
| 3.3V regulated rail | 3.3V DC, up to 0.5A within the documented operating and thermal limits. |
| Input-voltage rail | Fused distribution of the applied input voltage. It is not a regulated 24V output. |
| Fan interface | 12V or input-voltage fan supply with PWM and TACH support. Logic pull-up selection supports 3.3V or 5V systems. |
| Low-side outputs | Two onboard low-side MOSFET output channels for compatible low-voltage DC loads. Follow the manual's load limits and wiring. |
| Digital inputs | Two dry-contact inputs. Do not apply external field voltage to these inputs. |
| Analog inputs | Two controller-facing analog channels with a 0–3.3V permitted signal range. |
| USB-C service connection | Documented 5V service function only; it does not replace the 18–30V main input. |
| Protection | Input overcurrent and reverse-polarity protection. Protection devices do not replace correct wiring or an appropriately rated external supply. |
Important: the “24V” connection is not a regulated 24V output.
It is fused input-voltage distribution. With 18V applied, that rail is approximately 18V; with 30V applied, it is approximately 30V. Only connect loads rated for the actual applied input voltage.
Supply regulated 12V, 5V and 3.3V rails while also distributing the fused input voltage to compatible accessories.
Use two low-side output channels and a dedicated PWM/TACH fan interface for documented low-voltage DC loads.
Connect two dry contacts and two 0–3.3V analog signals without inventing a different connector scheme for every function.
KI Maker publishes the information needed to evaluate and use PWR INTF. The product-page values are summaries; the current controlled documents remain the detailed reference.
No. The published main-input range is 18–30V DC. A 12V supply is outside the permitted input range.
No. The input-voltage distribution rail follows the applied main supply and is protected by the input fuse. It is not regulated to 24V.
No. IN1 and IN2 are dry-contact inputs and must not receive externally supplied field voltage. Use the KI Maker IN-4 when a controller must monitor 9–30V DC field signals.
Yes, when wired according to the documentation. The board provides regulated 3.3V and 5V rails, and the supported logic interfaces are documented for common Arduino, ESP32, STM32 and Raspberry Pi projects.
No. The USB-C connection is limited to its documented 5V service function. Normal board operation requires the specified 18–30V DC main input.
No. It is intended for low-voltage electronics, prototypes, test fixtures and general controller projects—not certified safety, emergency-stop, medical or fail-safe applications.
Switch compatible 12V and 24V DC loads from four controller outputs. Follow the published channel and total-current limits.
Available now · $19.95
Monitor four polarity-independent 9–30V DC field signals using active-high 3.3V or 5V controller inputs.
Available now · $19.95
PWR INTF is developed by KI Maker, a product brand of Kuster Induction Solutions LLC. It is supplied as an assembled, clearly labeled low-voltage controller interface board with published operating limits and supporting documentation.
PWR INTF combines regulated 12V, 5V and 3.3V power rails with fused input-voltage distribution and practical controller interfaces. It is designed to replace scattered converters, splitters and loosely labeled wiring in low-voltage automation, test fixtures and maker projects.
Ships from Texas · 30-day returns · One-year KI Maker limited warranty · Checkout through eBay
Many 24V controller projects also need 12V accessories, 5V peripherals and 3.3V logic. Building those rails from separate converter modules creates more connections, more unlabeled wiring and more opportunities for mistakes. PWR INTF centralizes those functions on one documented board.
This table is a product-selection summary. Read the current specification sheet and owner's manual before wiring the board or applying power.
| Function | Published specification |
|---|---|
| Main input | 18–30V DC. Low-voltage DC only. |
| 12V regulated rail | 12V DC, up to 1.0A within the documented operating and thermal limits. |
| 5V regulated rail | 5V DC, up to 1.0A within the documented operating and thermal limits. |
| 3.3V regulated rail | 3.3V DC, up to 0.5A within the documented operating and thermal limits. |
| Input-voltage rail | Fused distribution of the applied input voltage. It is not a regulated 24V output. |
| Fan interface | 12V or input-voltage fan supply with PWM and TACH support. Logic pull-up selection supports 3.3V or 5V systems. |
| Low-side outputs | Two onboard low-side MOSFET output channels for compatible low-voltage DC loads. Follow the manual's load limits and wiring. |
| Digital inputs | Two dry-contact inputs. Do not apply external field voltage to these inputs. |
| Analog inputs | Two controller-facing analog channels with a 0–3.3V permitted signal range. |
| USB-C service connection | Documented 5V service function only; it does not replace the 18–30V main input. |
| Protection | Input overcurrent and reverse-polarity protection. Protection devices do not replace correct wiring or an appropriately rated external supply. |
Important: the “24V” connection is not a regulated 24V output.
It is fused input-voltage distribution. With 18V applied, that rail is approximately 18V; with 30V applied, it is approximately 30V. Only connect loads rated for the actual applied input voltage.
Supply regulated 12V, 5V and 3.3V rails while also distributing the fused input voltage to compatible accessories.
Use two low-side output channels and a dedicated PWM/TACH fan interface for documented low-voltage DC loads.
Connect two dry contacts and two 0–3.3V analog signals without inventing a different connector scheme for every function.
KI Maker publishes the information needed to evaluate and use PWR INTF. The product-page values are summaries; the current controlled documents remain the detailed reference.
No. The published main-input range is 18–30V DC. A 12V supply is outside the permitted input range.
No. The input-voltage distribution rail follows the applied main supply and is protected by the input fuse. It is not regulated to 24V.
No. IN1 and IN2 are dry-contact inputs and must not receive externally supplied field voltage. Use the KI Maker IN-4 when a controller must monitor 9–30V DC field signals.
Yes, when wired according to the documentation. The board provides regulated 3.3V and 5V rails, and the supported logic interfaces are documented for common Arduino, ESP32, STM32 and Raspberry Pi projects.
No. The USB-C connection is limited to its documented 5V service function. Normal board operation requires the specified 18–30V DC main input.
No. It is intended for low-voltage electronics, prototypes, test fixtures and general controller projects—not certified safety, emergency-stop, medical or fail-safe applications.
Switch compatible 12V and 24V DC loads from four controller outputs. Follow the published channel and total-current limits.
Available now · $19.95
Monitor four polarity-independent 9–30V DC field signals using active-high 3.3V or 5V controller inputs.
Available now · $19.95
PWR INTF is developed by KI Maker, a product brand of Kuster Induction Solutions LLC. It is supplied as an assembled, clearly labeled low-voltage controller interface board with published operating limits and supporting documentation.