DC Power System with DC-DC Converter
CENTURION III
Power -48, 24 and 12 Volt Site Equipment from One System.
- 19″, 2U rack mount shelf with integrated power distribution
- 90-250 VAC input, Power Factor Corrected
- 2 power bays accept 1000 or 2000 watt modular rectifiers
- 74 amp, 4000 watt total max. output capacity, (37 Amp, 2000 Watt, N+1) @ – 48 VDC
- 2 power bays accept DC-DC modules
- -48V to 12V and -48V to 24V
- Output temperature compensated for precise battery charging
- -48VDC circuit breaker distribution capacity with tripped breaker alarm
- 10 DC circuit breaker distribution capacity, with tripped breaker alarm
- 1 each DC-DC converter output circuit breaker distribution with tripped breaker alarm
- Master disconnect breakers for two 48 volt battery banks, with tripped breaker alarm
- Controller with digital display of up to three system DC system parameters with TCP/IP interface and SNMP monitoring/logging
- Alarm contacts monitor major system functions
- Low voltage disconnect built in
- Easily configures to meet site power requirements
48V Rectifier Configurations
| Watts Per Rectifier | # of Rectifiers Installed | |
| 1 | 2 | |
| 2000 | 18A (1000W) | 36A (2000W) |
| 1000 | 37A (2000W) | 74A (4000W) |
| DC Converter Configurations | ||
| Voltage Conversion | 1 | 2 |
| 48 to 24V | 560W | 1120W |
| 48 to12V | 560W | 1120W |
Preliminary specifications subject to change without notice.
AC Input
Nominal: 230V
Voltage Range: 90-300V (derate @ 115 input)
Frequency Range: 45-65 Hz
Power Factor: >0.99
Efficiency: >94% (from 30-95% output power)
DC Output
Voltage: -48 volt, constant power
Output Ratings: 48V to 58V
Nominal Voltage: 48V
Rated Voltage: 58V
Power
Rated maximum System Output Power: 4000W @ -48V
Polarity: Positive Earth
| Individual Rectifier Power: | 1000 watt | 2000 watt |
| Amperage @ 230 vac in | 7 | 12 |
| Amperage @ 115 vac in* | 12 | 13 |
| * 1kW derated to 650W @ 115VAC, 2kW derated to 1300W @ 115VAC | ||
DC Distribution
Load: Up to 12 load circuit breakers (6 – 63A)
Battery: Up to 2 battery circuit breakers (max. 100A)
Monitoring and Control
Display: Multi-lingual alpha numeric backlit display
Communications:
Serial: 1x USB port on front panel for local PC interface
TCP/IP: Ethernet interface for communication using SNMP protocol and internal web based configurator (optional)
HTTPS capable
Modbus: Supported via TCP/IP
LED Indicators:
- Green: Power on/monitor OK
- Yellow: Non urgent alarm
- Red: Urgent alarm
Audible: 90dBA buzzer mappable to user defined conditions
Controls: 3x push buttons for parameter setting or viewing on front panel
Signal Inputs:
Serial bus for rectifier control and interface to peripheral modules
6x spare general purpose inputs (analogue/digital)
2x temperature sensors (one fitted)
Alarms:
Relays: 3x alarm and control relays, two of which can be mapped for customized alarm settings (expandable)
Alarm Contacts:
Volt Free Contacts: 0.3A @ 100V (0.15A @ 160V)
Logging Capacity:
Periodic Log: Up to 16,384 records (dependant on number of parameters logged)
Event Log: Up to 16,384 records (dependant on number of parameters logged)
Connections:
Relay Outputs: Mini combicon to accept 1.5mm wire
USB Port: USB mini B
Environmental
Ambient Temperature:Nominal: 25+/-5º C
Range: -10º C to +70º C (maximum output power is derated above +50º C)
Humidity: 5-95% RH (non-condensing)
Altitude: <8,202 ft., De-rate maximum ambient temperature by 4º C per 3,280 ft. above sea level
Mechanical
Shelf Dimensions: 19” W x 3.5” H x 15.35” D
Weight: 19.84 Lbs. (excluding rectifier modules)
Rectifers Dimensions: 4.25” W x 2.75” W x 11.1” D
Weight: 3.15 Lbs
Cooling: Forced cooled
Compliances
Safety: EN60950
Electrostatic Discharge: CISPR24
Radiated Radio Frequency: CISPR22
AC Harmonics: EN61000-3-2
AC Flicker and Fluctuation: EN61000-3-3
Other: CE & RoHS compliant
DC-DC Converter
DC Input |
||
| CIII4824 | CIII4812 | |
| Nominal Input Voltage: | 48V DC | 48V DC DC |
| Input Voltage Range: | 40-60V DC | 40-60V DC |
Protection
Fuses: Fuse in the positive input with crowbar diode
Input Voltage: Auto shutdown, auto restart when correct voltage restored
DC Output |
||
| CIII4824 | CIII4812 | |
| Nominal Output Voltage: | 24V DC | 12V DC |
| Output Voltage Range: | 22-26V DC | 11-14V DC |
| Maximum Output Current: | 25.0A | 40.0A |
| Maximum Output Power: | 650W | 560W |
| Peak Efficiency: | 93.0% | 90.0% |
