SI48-3U
48 V DC power supplies in a 3 U rack unit
- The SI48-3U power supplies provide a reliable 48 V DC power supply for telecommunications and industrial systems
- Supports up to two rechargeable battery packs and a maximum of four chargers
- Capable of operating on single-phase or three-phase power supplies, with built-in PFC circuits
- Wide operating temperature range from –33°C to +70°C, high resistance to interference
- Microprocessor-based control, RS232 or RS485 digital communication, remote event reporting
- Precise maintenance of the buffer voltage, advanced battery protection and event logging
Models
| Models | Output current | Output power | Communication | Rectifiers | |
|---|---|---|---|---|---|
| SI48-28-32 | 21 A | 1050 W | RS232 | 3 × ZPA-48/7 | Enquire about the product View full specification |
| SI48-28-33 | 21 A | 1050 W | RS485 | 3 × ZPA-48/7 | Enquire about the product View full specification |
| SI48-28-42 | 28 A | 1400 W | RS232 | 4 × ZPA-48/7 | Enquire about the product View full specification |
| SI48-28-43 | 28 A | 1400 W | RS485 | 4 × ZPA-48/7 | Enquire about the product View full specification |
| SI48-48-32 | 36 A | 1800 W | RS232 | 3 x ZPA-48/12 | Enquire about the product View full specification |
| SI48-48-33 | 36 A | 1800 W | RS485 | 3 x ZPA-48/12 | Enquire about the product View full specification |
| SI48-48-42 | 48 A | 2400 W | RS232 | 4 × ZPA-48/12 | Enquire about the product View full specification |
| SI48-48-43 | 48 A | 2400 W | RS485 | 4 × ZPA-48/12 | Enquire about the product View full specification |
Product description
The SI48-3U series of DC power supplies comprises advanced 48 V power systems designed for telecommunications and industrial applications. Thanks to their compact 3U chassis, they offer high output power whilst maintaining configuration flexibility. Support for multiple batteries, the option for redundant operation and a wide operating temperature range make these units well-suited to demanding applications. Equipped with digital monitoring systems, RS232 and RS485 communication interfaces and optical signalling, the power supplies enable precise monitoring of all operating parameters. Thanks to their modular design and hot-swap technology, the SI48-3U DC power units are easy to service and upgrade, a feature appreciated by users who require stability and reliability in critical power supply systems.
Downloads
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SI48-28 DS EN
(166 KB)| .PDFDownload file
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SI48-28 DS PL
(213 KB)| .PDFDownload file
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