Products\Power supply\NN301/48Vdc
NN301/48 Vdc - Small DC Power Supply System
- Compact uninterruptible dc power supply system - in one enclosure:
- Rectifier 230 Vac/48 Vdc, up to 175 W
- Battery Charger 220 Vac/40,5 — 56 Vdc, up to 125W
- Batteries 48 Vdc/12 Ah/17 Ah/24 Ah
- Low Voltage Disconnect block
- Optimal Charging of Batteries
- Each system is completely wired, charged and ready to go
Applications
- DC power supply system NN301 is designed for:
- Applications in which electronic equipment need to have reliable and permanent DC power supply regardless on main supply failure
- Equipment to be used in telecom, datacom, and network applications
- Equipment to be used in security and monitoring applications
- Typical Applications
- Fiber Optic Networks
- Data communications
- PABX/ISDN
- Industrial
- Customer premises
System overview
- NN301 contains:
- Rectifier - DC/DC converter (MN175) providing DC output power to load
- Charger – DC/DC converter (MP125) providing battery charging:
- Battery charging is independent of rectifier and move according to optimal charging characteristics given by battery manufacturer
- It works like current/voltage source (IU characteristics)
- System of semiconductor switches providing uninterruptible DC output power to load:
- Connecting load and batteries when ac power is loss (rectifier off)
- Assuring permanent power to load
- Control block:
- Controlling system of semiconductor switches mentioned above
- Detection of system failures – overload detection, loss of AC detection, battery damage
