175 Ah Battery Backup Unit | GBU-2U
Product Information
The Guardian Battery Unit GBU-2U is a 48V 23” rack-mountable Lithium ion Battery Backup Unit (BBU) designed to be used in conjunction any modular DC Power System. The GBU Series of 48V batteries have been designed for data center and telecom applications as a replacement to Lead Acid batteries. This Modular Energy Solution can be scaled to meet any mobile switching center need.
The patented Energy Balance Technology (EBT) provides internal balancing among the BBU modules connected in parallel. The EBT ensures consistent voltage and current delivery from the entire system of connected modules, which maximizes runtime and power delivery. This technology allows the energy storage rack to be simple and self contained.
Remote management via the Modbus, over RS-485 or Ethernet via the Unipower GCC Controller with PowCom™ software provides immediate access to performance and alarm information.
Lithium Nickel Manganese Cobalt (NMC) chemistry provides the best energy density and the smallest footprint in the industry.
Features and Options
- 2RU High variant with 175Ah of capacity
- 23-Inch Rack Mounting
- Current Capacity: 100A
- Operating Voltage: 48Vdc
- Scalable, connect multiple units in Parallel
- RS-485 Communication Ports
| SPECIFICATIONS | |
|---|---|
| Electrical Parameters | |
| Lithium-Ion Chemistry | Lithium Nickel Manganese Cobalt (NMC) |
| Nominal Voltage | 46.8V |
| Voltage Range | 42-54.6V |
| Nominal Capacity | 175Ah (8190Wh) |
| Continuous Discharge Current | 100A |
| Pulse Discharge Current | 115A for 300ms |
| Quiessentient Current Draw | 1mA |
| Min/Max Charge Current Range | 3-100A |
| Cell Balancing | Passive, 300mA |
| Maximum in Parallel Operation | Contact Green Cubes |
| Physical Parameters | |
| Terminals | Four threaded receptacles, M6 bolt pattern |
| Dimensions, case | 21.4″ X 29″ X 3.4″, 544mm X 737mm X 86mm |
| Weight | 63kg (139 lbs) |
| Communications and Control | |
| Serial Communication | ModBus over RS-485 |
| Environmental | |
| Operating Humidity | 5% to 95% non-condensing |
| Charge Temperature Range | 0°C to +55°C |
| Operating Temperature Range | -5°C to +45°C |
| Storage Temperature Range | -40°C to +60°C |
| Thermal Management | Variable Speed Fan |
| Airflow Direction | Front to Back |
| IP Rating | IP 20 |
| Approvals and Safety | |
| Agency Approvals | UN 38.3, IEC 62619, UL 1973 Pending |
| Radiated and Conducted Emission | EN55032 / CISPR 22 Class A |
| Calendar Life @ 80% SOC | Up to 20 Years |
| Cycle Life @ 80% SOC | 800 Cycles |
| Battery Modes | Battery modes – Ship and active |
| Shipping Classification | Class 9 |
