DC Power Systems

Enatel Energy RM3048HE - 3kW Rectifier Module

The Enatel RM3048HE is a 3.0kW high-efficiency 48V DC rectifier module designed for use in modern telecommunications and DC power systems. With an efficiency rating of >96%, it offers exceptional energy savings, reduced heat output, and compact power delivery—all within a slim 1U, hot-swappable module. The RM3048HE is ideal for integration into modular DC power platforms such as Enatel’s FlexiCompact and UltraCompact systems, delivering outstanding power density and system scalability.

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  • Enatel Energy RM3048HE - 3kW Rectifier Module
  • Enatel Energy RM3048HE - 3kW Rectifier Module
  • Enatel Energy RM3048HE - 3kW Rectifier Module
NRND Not Recommended for New Design
EOL End of Life

Features

  • Ultra-High Efficiency (>96%): Reduces energy losses and heat output, improving ROI and system longevity.
  • Compact & Scalable: Delivers 3.0kW in a 1U hot-swappable module—scalable up to 36kW in 3RU.
  • Hot Plug/Swap Capability: Enables quick and easy rectifier replacement without system downtime.
  • Wide Input Range: Operates from 85–300Vac, with power derating below 185Vac.
  • Robust Cooling & Build Quality: Forced-air cooling with temperature-controlled, monitored fan ensures reliable operation.
Specifications
AC INPUT
Nominal input voltage 230Vac
Input Voltage Range 85...300Vac (reduced power below 185Vac)
Frequency Range 45 to 66Hz
Maximum Input Current: 16A rms (185Vac, 20°C)
Power Factor >0.99 (50 to 100% load)
Peak Efficiency

96.3%

>95% (30 to 82% load, 230Vac)
Total Harmonic Distortion (THD)

<5% (50 to 100% load, rated AC voltage)
Swell Tolerance

Rectifier shuts down above 320V, returns to normal operation when input is within operating range.
Input Over-Current Protection:

Fuses (phase and neutral) HRC
AC Fuse Ratings:

25A / 250V
DC OUTPUT
Nominal Voltage 48Vdc
Adjustable Voltage Range 43...60Vdc
Rated Output Power

100Vac: 1050W

120Vac: 1500W

208...240Vac: 3000W
Preset Accuracy ±0.2V
Regulation

±0.7%

No load to full load
Default (Fail-Safe) Voltages

Loss of System Communication: Output voltage (current limit and power limit) reset to system presets after 8minutes of loss of communications. 

Preset voltage: 54 ±0.2V (manufacturer preset)
Hold-up Time

10ms (at rated output power and rated AC voltage the DC output voltage drops by no more than 20%)
Start-up Time

Soft start
Protection

Current Limit: Factory set to 60A

Over Temperature Turndown: Automatic power turndown.

Over Voltage Shutdown: Adjustable and latchable (1 Volt maximum negative slope at full load for discrimination)

Short-Circuit: Full short-circuit protection. Output current limited to less than 100% of rated output current. Foldback function is implemented ensuring <35Amps below 30VDC output. Rectifier will continue normal operation after short-circuit is removed. Non-urgent (Current Limit) alarm generated.
Noise under nominal conditions

Ripple (<100Hz): <20mV rms (unweighted)
Audio Frequency (300 Hz – 3.4 kHz): <2mV (psophometric, with battery connected)
Wide band (5Hz – 1MHz): <40mV rms (unweighted)
Peak to peak (0 – 20 kHz): <200mV p-p (unweighted)
Discrete frequency (3.4kHz – 150kHz): <50mV rms (1kHz wide selective frequency)

 

ENVIRONMENTAL
Ambient Temperature

Rated Operating Range: -10°C to +45°C

Extended Operating Range: -25°C to +70°C (Output derates above 45°C and below -10°C)
Humidity 

Nominal: 50% RH

Range: < 95% RH (non condensing)
Altitude

< 2000m
MECHANICAL
Dimensions (WxHxD) 111.5mm, 44mm, 282mm 
Weight 1.5kg
Connector  Positronics “goldfish” type connector
Front Panel LEDs
  • Power On: Green 
  • Non-Urgent Alarm: Yellow 
  • Urgent Alarm: Red 
Cooling Forced cooled Front to back airflow
Alarms 
Operational
  • This green LED indicates that mains power is connected to the unit and that the primary stages of the rectifier are operating.
  • A flashing green LED indicates the RM848HE is in power saving mode.
Non-Urgent
  • Rectifier in output power/current limit.
  • Rectifier over temperature.
  • Fan failed.
  • Rectifier soft starting.
Urgent
  • Rectifier failed.
  • The AC input voltage is outside the operating range.
  • Rectifier shut down due to output over voltage or over temperature

*Note alarms are user configurable.
COMPLIANCE
Safety AS/NZS 60950-1, EN 60950-1
EMC - Immunity
  • Electrostatic discharge: EN 61000-4-2
  • Radiated radio frequency: EN 61000-4-3
  • Electrical fast transients: EN 61000-4-4
  • Surge: EN 61000-4-5
  • Conducted radio frequency: EN 61000-4-6
  • Power frequency magnetic field immunity test): EN 61000-4-8
  • Dips, interruptions & variations: EN 61000-4-11
EMC - Emissions
  • Conducted emissions (AC): EN 55022 / CISPR 22
  • Radiated emissions: EN 55022 / CISPR 22
  • Harmonics: EN 61000-3-2
  • Fluctuations and flicker: EN 61000-3-3
Other CE & RoHS compliant
Downloads
Enatel_RM2048HE_RM3048HE-Product-Sheet-2022-8-9.pdf
AC INPUT
Nominal input voltage 230Vac
Input Voltage Range 85...300Vac (reduced power below 185Vac)
Frequency Range 45 to 66Hz
Maximum Input Current: 16A rms (185Vac, 20°C)
Power Factor >0.99 (50 to 100% load)
Peak Efficiency

96.3%

>95% (30 to 82% load, 230Vac)
Total Harmonic Distortion (THD)

<5% (50 to 100% load, rated AC voltage)
Swell Tolerance

Rectifier shuts down above 320V, returns to normal operation when input is within operating range.
Input Over-Current Protection:

Fuses (phase and neutral) HRC
AC Fuse Ratings:

25A / 250V
DC OUTPUT
Nominal Voltage 48Vdc
Adjustable Voltage Range 43...60Vdc
Rated Output Power

100Vac: 1050W

120Vac: 1500W

208...240Vac: 3000W
Preset Accuracy ±0.2V
Regulation

±0.7%

No load to full load
Default (Fail-Safe) Voltages

Loss of System Communication: Output voltage (current limit and power limit) reset to system presets after 8minutes of loss of communications. 

Preset voltage: 54 ±0.2V (manufacturer preset)
Hold-up Time

10ms (at rated output power and rated AC voltage the DC output voltage drops by no more than 20%)
Start-up Time

Soft start
Protection

Current Limit: Factory set to 60A

Over Temperature Turndown: Automatic power turndown.

Over Voltage Shutdown: Adjustable and latchable (1 Volt maximum negative slope at full load for discrimination)

Short-Circuit: Full short-circuit protection. Output current limited to less than 100% of rated output current. Foldback function is implemented ensuring <35Amps below 30VDC output. Rectifier will continue normal operation after short-circuit is removed. Non-urgent (Current Limit) alarm generated.
Noise under nominal conditions

Ripple (<100Hz): <20mV rms (unweighted)
Audio Frequency (300 Hz – 3.4 kHz): <2mV (psophometric, with battery connected)
Wide band (5Hz – 1MHz): <40mV rms (unweighted)
Peak to peak (0 – 20 kHz): <200mV p-p (unweighted)
Discrete frequency (3.4kHz – 150kHz): <50mV rms (1kHz wide selective frequency)

 

ENVIRONMENTAL
Ambient Temperature

Rated Operating Range: -10°C to +45°C

Extended Operating Range: -25°C to +70°C (Output derates above 45°C and below -10°C)
Humidity 

Nominal: 50% RH

Range: < 95% RH (non condensing)
Altitude

< 2000m
MECHANICAL
Dimensions (WxHxD) 111.5mm, 44mm, 282mm 
Weight 1.5kg
Connector  Positronics “goldfish” type connector
Front Panel LEDs
  • Power On: Green 
  • Non-Urgent Alarm: Yellow 
  • Urgent Alarm: Red 
Cooling Forced cooled Front to back airflow
Alarms 
Operational
  • This green LED indicates that mains power is connected to the unit and that the primary stages of the rectifier are operating.
  • A flashing green LED indicates the RM848HE is in power saving mode.
Non-Urgent
  • Rectifier in output power/current limit.
  • Rectifier over temperature.
  • Fan failed.
  • Rectifier soft starting.
Urgent
  • Rectifier failed.
  • The AC input voltage is outside the operating range.
  • Rectifier shut down due to output over voltage or over temperature

*Note alarms are user configurable.
COMPLIANCE
Safety AS/NZS 60950-1, EN 60950-1
EMC - Immunity
  • Electrostatic discharge: EN 61000-4-2
  • Radiated radio frequency: EN 61000-4-3
  • Electrical fast transients: EN 61000-4-4
  • Surge: EN 61000-4-5
  • Conducted radio frequency: EN 61000-4-6
  • Power frequency magnetic field immunity test): EN 61000-4-8
  • Dips, interruptions & variations: EN 61000-4-11
EMC - Emissions
  • Conducted emissions (AC): EN 55022 / CISPR 22
  • Radiated emissions: EN 55022 / CISPR 22
  • Harmonics: EN 61000-3-2
  • Fluctuations and flicker: EN 61000-3-3
Other CE & RoHS compliant
Enatel_RM2048HE_RM3048HE-Product-Sheet-2022-8-9.pdf

Find the Right Model

Model Number Input Voltage (Vac) Output Voltage (Vdc) Max. Output Power (W / kW)
product variant RM3048HE 85...300Vac (power d-rated below 185Vac) 48Vdc (Adj. 43...60Vdc) 3.0kW

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