Open Frame Power Supplies with UL8750 Safety Approval


SL Power’s LU225 open frame AC-DC power supply enables LED lighting manufacturers to shorten the development cycle thanks to industry-specific safety approvals.



The LU225 family meets EN55015 (EN55032) Class B Conducted EMI, IEC61000-3-2 Class C (LED dimming) and EN60950 standards, and is one of the first open frame power supplies in the industry to feature UL8750 approval for LED equipment. An active inrush current limit capability of 15 A also minimizes the need for multiple circuit protection devices, resulting in lower installation and operating costs.


The LU225 family offers up to 225 watts output power with fan cooling, up to 180 watts with conduction cooling and up to 140 watts with convection cooling, and has models available in output voltages of 12, 24, 36, 48 and 56 volts. With a compact size of just 2.2 x 4.16 x 1.5 inch (55.9 x 105.66 x 38.1 mm), the LU225 family has a high power density of 16.4 watts-per-cubic-inch at 50 degrees Celsius. ​


In addition to LED lighting, the LU225 family is suitable for industrial applications such as equipment for test and measurement, process automation, displays and signage and renewable energy as well as general information technology equipment (ITE).