RS PRO 20W AC/DC Adapter 5V dc Output, 4A Output

From RS Pro a high quality and versatile plug-in AC-DC adapter for converting AC mains current into DC voltage for a wide range of DC applications. The AC adapter is supplied with interchangeable AC mains plugs for use in the UK, Australia, China, Europe, US and Japan. This AC adapter conforms to the Energy-related Product Directive 2009/125/EC and is ErP Level V compliant

Plug in AC-DC adapters are also known as AC Adaptors or AC-DC converters and are a type of external power supply. Some electrical appliances require power but lack the internal components to derive the required voltage and power from mains power. This is where an AC-DC adapter is used.

The adapter consists of a power supply which is enclosed in a case similar to an AC plug, hence the term plug type, plug-in or plugtop power adapter. One end of the power supply is terminated by a DC power cable with a DC connector on the end. This DC connector is plugged into the device which is being supplied. The power supply is plugged into the mains socket and the AC current is then converted by the adapter into a DC voltage that is fed into the appliance via the cable connection. The interchangeable AC mains plugs are simply snapped into place allowing the adaptor to be used in different countries.

This AC DC adapter has an ErP (Energy related Products) Level V rating. The Energy-related Product Directive 2009/125/EC was set up to establish a framework under which manufacturers of energy related products are obliged, at the design stage, to increase energy efficiency and reduce the products negative environmental impacts that occur during the product's lifecycle. The numerals I to VI are an International Efficiency Marking Protocol which allows manufacturers to designate the efficiency performance of a product. This performance is based on the measurement of the operating energy efficiency and no-load power consumption of power supplies tested at different load levels. The no-load power consumption refers to the amount of power that an external power supply draws even when the application is turned off or disconnected.

These adapters are used to power small or portable electronic devices. This ac adapter is ideal for use with the following applications:

• Computer peripherals
• Networking equipment
• Portable equipment
• Tablets and Laptops
• Smartphones
• Instrumentation
• Telecommunications equipment

MTBF to MIL-STD-781C

EN 60950-1, UL 60950-1

UL

This 5V DC power supply has the following features and benefits:

• Universal input voltage of 90 Vac to 264 Vac
• 5 V dc output voltage
• 20 W power rating
• ErP Level V Compliant
• Interchangeable AC mains plugs for use in UK, Europe, USA and Australia
• 1.5 m cable length
• 2.5 x 5.5 x 9.5 mm DC connector
• Over voltage, over current and short circuit protection