24V and 48V,
6,000 Watt,
Fully Integrated, Redundant DC Power System

Incredible Functionality, Flexibility, and Scalability in a 2 RU, 1.0 to 6.0 Kw DC Power System


  • 19″, 2U rackmount shelf with integrated power distribution
  • 90-250V AC input, Power Factor Corrected
  • 3 power bays accept 1000 or 2000 watt modular rectifiers
  • 111 amp, 6000 watt total max. output capacity, (74 Amp, 4000 Watt, N+1) @ –54.0V DC
  • Output temperature compensated for precise battery charging
  • 16 DC circuit breaker distribution capacity, with tripped breaker alarm
  • Master disconnect breakers for two battery banks, with tripped breaker alarm
  • Controller with digital display of 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

Request a Quote or Additional Information

Complete system design and integration by Newmar to your application parameters: Rectifier configuration, installation of distribution circuit breakers, and configuration of alarms and monitors. Assembly in a relay rack with batteries and wiring also available. Let us submit a proposal on your next project. All system components are sold separately.

Specifications: Centurion II DC Power System

Rectifier Input Amps @ Full Load 115/230V Output Weight
Voltage Amps
Lbs Kg.
C2RX-2048 11.4 Amps (output derated approx. 40% @ 115V)/9.8 Amps @ 230V -54.4V DC,
adjustable 48 - 58V DC
37A* 2000 3.5 1.59
* @ 120 VAC: Derate 2 kW rectifiers by 40%; 1kW rectifiers by 33%
Shelf Input Voltage Range Configuration Size Weight
C2RS-24 90-300V (derate @ 115 input),
45-65 Hz.
3 Centurion II Rectifiers (+24 V), Controller,
16 DC Circuit Breaker Distribution, 2 x 100A Battery Breakers
19/23”, 2 RU 19.84
C2RS-48 90-300V (derate @ 115 input),
45-65 Hz.
3 Centurion II Rectifiers (-48 V), Controller,
16 DC Circuit Breaker Distribution, 2 x 100A Battery Breakers
19/23”, 2 RU 19.84

 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 +24 volt
Output Ratings: Constant power outputfrom 48V to 58V Constant power output from24V to 29V
Nominal Voltage: 48V 24V
Rated Voltage: 58V 29V


Rated maximum System Output Power: 6000W @ -48V, 3000 watts @ 24 volts Polarity: Positive earth. 48 volt, negative earth 24 volt

Wattage @ 115 vac in

Rectifier Model C2R-2000 C2R-2000
Output Volts 24 VDC 48VDC (Discontinued)
Amperage @ 230 vac 41.7 41.7
Amperage @ 115 vac 21 21
Wattage @ 230 vac in 1000 2000
Wattage @ 115 vac in 504 1000

DC Distribution:

Load: 16 breaker position capacity, available amperages (specify) 6A, 10A, 20A, 30A and 50A with tripped breaker alarm. (50A circuit breaker is a special order - contact factory for more information) Battery: 2 x 100A battery circuit breakers. Breaker Fail Detection: Electronic fail detection on both load and battery. Breakers Low Voltage Battery Disconnect: 125A battery LVD installed standard, with disconnect alarm

Monitoring & Control:

Monitors all DC power system conditions including DC voltage, rectifier current, battery current, battery temperature, and distribution failure. Visual notification of alarm conditions by LED's and a 4 line x 16 character alpha numeric display mounted on the front panel, with remote notification being enabled by relay contacts, RS232 or TCP/IP (using SNMP). It has a built-in web based controller allowing setup of system parameters using a web browser and utilizes a USB communications port which allows for local monitoring of system operations as well as easy downloading of configuration files for multiple site installations.

General System


Current Limit: Adjustable to 50-100% of maximum rated current. Over Temperature: Automatic current reduction, backup shutdown protection. Polarity Reversal: Output fuse with crowbar diode. Over Voltage: Adjustable limit. Input Voltage: Auto shutdown, auto restart when correct voltage restored. Input Inrush: <2x maximum input current. Input Fuses: In phase and neutral.

Technical Characteristics

Noise: Ripple <100Hz: <1mV rms unweighted Voice band 100Hz-5KHz: <1mV rms psophometric Wide band 5kHz-1MHz: <5mV rms unweighted Peak to Peak 0-20MHz: <100mV peak to peak Isolation: Input to Output: 4000V DC. Input to Chassis: 3500V DC (VDR to chassis removed) Output to Chassis: 2100V DC Regulation: Line = +/-0.1%, Load = +/-0.5% (no load to full load)


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


Ambient Temperature: Nominal: 25+/-5˚ C Range: -10˚ C to +70v C (maximum output power is derated above +50˚ C) Humidity: 5-95% RH (non-condensing) Altitude: <8,202 ft., De-rate maximum ambient temperature by 4˚ C per 3,280 ft. above sea level.


Safety: EN60950 Electrostatic Discharge: CISPR24 Radiated Radio Freq: CISPR22 AC Harmonics: EN61000-3-2 AC Flicker & Fluctuation: EN61000-3-3 Other: CE & RoHS compliant


Wiring Option: Battery Cable, 2 AWG, 7’ Length (P/N: 435-2007-0)

BSW2-7 Centurion II DC Power System 24V DC and 48V DC Battery Cable Wiring Newmar