Mean Well SPV-300-12 Enclosed Switching Power Supply - 12V DC, 25A, 300W, Programmable Output

The Mean Well SPV-300-12 is a 300W enclosed switching power supply providing a regulated 12V DC output at 25A, with built-in active power factor correction. Its standout feature is a fully programmable output: the output voltage can be adjusted from 20% to 110% of nominal via a simple 1–5.5V DC external control signal, making it ideal for applications that need dynamic or fine-tuned voltage control. With a universal full-range AC input of 88–264VAC (or 124–370VDC), it runs directly on Australian 240V mains. The slim 50mm-high enclosed case is cooled by free air convection — no fan — for silent, maintenance-free operation, and built-in remote ON-OFF control allows external switching of the output. Key Features 300W rated output — 12V DC at 25A Universal full-range AC input, 88–264VAC / 124–370VDC Built-in active PFC function, PF>0.94 Output voltage programmable 20–110% via 1–5.5V DC external control signal Protections: short circuit / overload / over voltage / over temperature Fanless — cooling by free air convection Built-in remote ON-OFF control 3-year manufacturer warranty Technical Specifications Output Voltage 12V DC (programmable 20–110% via 1–5.5V DC signal) Rated Current 25A Rated Power 300W Input Voltage 88–264VAC / 124–370VDC (full range) Power Factor >0.94 (active PFC) Efficiency (typ.) 84% Cooling Free air convection (fanless) Working Temperature -20°C to +65°C (refer to derating curve) Protections Short circuit, overload, over voltage, over temperature Functions Programmable output, remote ON-OFF control Dimensions (L x W x H) 215 x 115 x 50 mm Weight 1.1 kg Warranty 3 years Typical applications include 12V industrial systems, LED lighting and signage, battery-adjacent supplies, test equipment and any installation requiring a silent, programmable 12V DC source. Buy online from BNR Industrial Automation, Australia.