Documentation

48TL

Applications and Key Benefits

- 48V sodium nickel chloride energy backup system, specifically designed for telecom application

Ideal for:

• Telecom central office sites with stringent energy density requirement

• Telecom outdoor cabinets in locations with elevated or extreme temperature

• Installation with poor grid connection and frequent power outages

• Installation in locations where regular on-site maintenance is costly or not possible

- Constant performance at -20° to +60°C / -4°F to 140°F

- No cooling required

- >3000 cycles at 80% DoD

- 100% maintenance free in operation

- Allows remote monitoring

- Specific energy: 70% lighter and 30% smaller than conventional energy backup systems

- Very low total cost of ownership (TCO) compared to other backup technologies

- No outgassing and zero ambient emission

- Very long shelf live without maintenance: stores energy indefinitely when not connected

Sodium Nickel Chloride Technology

- Use of sodium and nickel as active materials, with solid ceramic electrolyte

- Active materials contained in sealed steel sheet cells

- "hot device" - internal operating temperature around 300°C / 572°F

- Made with 2.58 Volt cells with 140 Wh/kg /310 Wh/lb and 280 Wh/liter specific density

- Proven technology for energy storage and clean powering of electric vehicles

Environment

- Zero ambient emission: can be installed in a sealed environment

- System outside temperature only few degrees above the ambient temperature

- Efficient material usage and 100% recyclable: stainless steel, nickel, iron, salt, ceramic

- RoHs compliant

Technical Features

- Steel cell case and double stainless steel device case

- Integrated system (BMS) for monitoring, diagnostics and data logging

- User interface on front panel

- Ready for remote diagnostics and monitoring

- Compatible with any DC power supply and standard telecom rectifiers

- Scalable with parallel operation

- No memory effect

- BMS diagnostics alert on anomalies and disconnect the device in case of serious failure

- Supplementary protection with an independent circuitry in the event of BMS failure

- Integrated low voltage disconnect (LVD)

- 48TL-H models: optimized insulation to guarantee lowest thermal loss and
maximize the system energy efficiency.
Ideal for applications that require medium to very long discharge