A 12V 20A open PSU (power supply unit) is an open-frame switching power supply that provides a stable 12-volt DC output with a maximum current of 20 amperes (240 watts of power). These units are commonly used for applications such as CCTV systems, LED lighting, and industrial control systems.
Key Features and Specifications
Output Voltage/Current: Delivers a consistent 12V DC output at up to 20A.
Power Capacity: Has a total power output of 240 watts (12V * 20A).
Input Voltage: Typically supports a universal AC input range of 100–240V, suitable for use globally.
Design: Features an "open frame" design, meaning the internal components (circuit board, metal baseplate, and terminals) are exposed, allowing for easier integration into control panels or security cabinets and passive cooling through natural convection (some models may include a fan).
Safety Protections: Includes built-in safeguards such as overload, overvoltage, short-circuit, and sometimes over-temperature protection to prevent damage to connected devices and the unit itself.
Adjustability: Often features a potentiometer for fine-tuning the output voltage within a small range (e.g., ±10%).
Specifications
Key Features
A 12V 20A open PSU (power supply unit) is an open-frame switching power supply that provides a stable 12-volt DC output with a maximum current of 20 amperes (240 watts of power). These units are commonly used for applications such as CCTV systems, LED lighting, and industrial control systems.
Key Features and Specifications
Output Voltage/Current: Delivers a consistent 12V DC output at up to 20A.
Power Capacity: Has a total power output of 240 watts (12V * 20A).
Input Voltage: Typically supports a universal AC input range of 100–240V, suitable for use globally.
Design: Features an "open frame" design, meaning the internal components (circuit board, metal baseplate, and terminals) are exposed, allowing for easier integration into control panels or security cabinets and passive cooling through natural convection (some models may include a fan).
Safety Protections: Includes built-in safeguards such as overload, overvoltage, short-circuit, and sometimes over-temperature protection to prevent damage to connected devices and the unit itself.
Adjustability: Often features a potentiometer for fine-tuning the output voltage within a small range (e.g., ±10%).