AKKUTEC 2420-990428T9 Switch Bank Power Supply

The AKKUTEC 2420-990428T9 Switch Bank Power Supply is a battery-buffered DC power supply (UPS) in the AKKUTEC 2420 family designed to keep 24 V DC loads powered when mains power fails, by pairing with a lead-acid battery. It operates in standby-parallel mode with an external battery and features switched primary, switched-mode operation with I/V charging, active power factor correction, and microcontroller-based battery management; there is a temperature-compensation option via an external sensor, and an optional IO interface/display for panel mounting. The unit accepts 230 V AC or 400 V AC input (47–63 Hz) and provides a 24 V DC output; depending on the version, output current is 5 A for 230 V versions or 10 A for 400 V versions, with boost charging up to about 28.6 V DC; models list output ranges around 19.8–26.4 V (230 V) and 19.8–28.6 V (400 V) during boost. Physical variants include an individual module (~2.4 kg), installation panel (~3.8 kg), and 19-inch versions (~6.0 kg), with battery sets adding weight (7.0 Ah ~5.7 kg; 12.0 Ah ~9.2 kg); enclosure is rated IP20. Typical applications include telecoms, industrial control, and critical DC-load backup, where uninterrupted DC power is essential.