SI48-28-42
DC power system 3U 48 V / 28 A / 1400 W, RS232 communication
- DC power system designed to provide an uninterrupted power supply at 48V to devices
- Supports up to 28A output current, 1400W output power, four 7A rectifiers
- Capable of operating on single-phase or three-phase power, with built-in PFC circuits
- Microprocessor-based control, RS232 digital communication, remote event reporting
- Precise float voltage regulation, advanced battery protection, and event history logging
- Wide operating temperature range from –33°C to +70°C and high electromagnetic immunity (EMC)
Product description
The SI48-28-42 DC power system provides a stable 48 V DC power supply to equipment. It offers an output current of 28 A and a power output of 1400 W. The unit works with four ZPA-48/7 rectifiers and is equipped with an RS232 communication interface. Microprocessor-based control enables precise monitoring of operating parameters and remote system supervision. The DC power system supports both single-phase and three-phase power, and the built-in PFC circuit improves energy efficiency. An advanced battery management system monitors battery status, performs accelerated charging with current limiting, and maintains a stable buffer voltage. The device logs event history and provides high resistance to electrical interference with low radio frequency emissions. The operating temperature range of -33°C to +70°C allows for operation in demanding conditions. The power system is housed in a 19″ rack-mount enclosure with a height of 3U, which facilitates integration into telecommunications cabinets. The device weighs 12.5 kg.
Technical specification
| AC supply voltage |
3x230 V |
| DC output voltage |
54,2 |
| Maximum output current |
28 |
| Maximum output power |
1400 |
| Communication |
RS232 |
| Installation |
19'' rack |
Application
- telecommunications infrastructure
- transmission networks
- enterprise & subscriber telecommunications
- industrial automation systems
Downloads
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SI48-28 DS EN
(166 KB)| .PDFDownload file
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SI48-28 UM EN
(785 KB)| .PDFDownload file
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SI48-28 DS PL
(213 KB)| .PDFDownload file
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SI48-28 UM PL
(912 KB)| .PDFDownload file
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