The SI24-30-33 DC power system provides a stable 24 V DC power supply to devices. It offers an output current of 30 A and a power output of 750 W. The unit is housed in a standard 19″ rack-mount chassis with a height of 3U and a depth of less than 320 mm, which facilitates installation in telecommunications cabinets. The power supply unit works with three ZPA-24/10 rectifiers and supports two battery banks. The factory settings are optimized for AGM batteries, and the unit is also compatible with lead-acid batteries. Microprocessor-based control ensures precise maintenance of the buffer voltage with temperature compensation and provides fast charging with current limiting. The RS485 interface enables remote monitoring of the unit’s operation, and the event history log facilitates system diagnostics. The built-in PFC circuit allows operation with single-phase or three-phase power. The power station monitors battery voltage, circuit continuity, fuse status, output overloads, rectifier operation, and temperature. The operating temperature range of -33°C to +70°C ensures reliable operation in demanding conditions.

• telecommunication and security systems
• industrial automation systems