Radian

48 Volt Input 1000 Watt 54 Volt DC-DC Front-End

Product Information

The Radian TPCMQ48-54/18 48 Volt Input 1000 Watt 54 Volt DC-DC Front-End provides up to 3kW of isolated 54.4VDC in a 1 RU 19” shelf.  It is ideal for use in installations where a 54VDC charger supply separate from the main power system bus is required.

The Radian TPCMQ48-54/18 48 Volt Input 1000 Watt 54 Volt DC-DC Front-End meets international safety standards and displays the CE-Mark for the European Low Voltage Directive (LVD).

The Radian TPCMQ48-54/18 48 Volt Input 1000 Watt 54 Volt DC-DC Front-End is one of a family of modules that offer outputs of 12V, 24V, 27.2V, 48V and 54.4V at power levels ranging from 650W to 1200W.

THREE YEAR WARRANTY

Features and Options
  • Isolated 5V, ¼ A Standby Output
  • Hot-Swap Operation
  • Remote Output Adjustment
  • Wide Range 40 to 60VDC Input
  • Integral LED Status Indicators
  • -20°C to +70°C Operating
  • I²C Serial Data Bus Option
  • 12.5 Watts/Cubic Inch Power Density
  • Low Profile: 1.6 Inches High
  • Single Hot-Swappable Connector
  • Reverse Air Flow Option
  • Staged Pin Engagement
  • ORing Diode on Output
  • 1U, 19” Rack/Shelf Holds 3 Units
  • 19- or 23-Inch Rack Mounting
  • Active Current Sharing
  • Optimized Thermal Management
  • No Minimum Load
  • Control & Monitoring Features
SPECIFICATIONS
 
INPUT
Voltage Operating Range: 40-60VDC
Inrush Current Limiting 10A Peak
Currentsee model table
Fuse Requires external fusing
 
OUTPUT
Voltage Range see model table
Power see model table
Currentsee model table
Efficiency Up to 90%
Regulation Vout ±2.0%
Transient Response<4% deviation recovering to within 1% for 25% load change
300μs recovery
Load Sharing <10% of full load rating
Ripple <200mV p-p (BW 20MHz)
Voice Band Noise<32dBrnC
 
STANDARDS
Safety EN60950-1, UL60950-1, CSA22.2 No.60950-1
Input Immunity, Conducted Fast Transients, Line-Line: ±500V (EN61000-4-4)
Surges, Line-Line: ±500V (EN61000-4-5)
Surges, Input Ground: ±500V (EN61000-4-5)
 
MECHANICAL
Dimensions, inches (mm) 5 W x 10 D x 1.6 H (127 W x 254 D x 44 H)
Weight 3.15lbs. (1.43kg)
CoolingFan-cooled
Insulation Input-Output: 2121VDC
Input-Ground: 1000VDC
Output-Ground: 100VDC
Mounting19in/23in x 1U subrack
up to 3 modules
 
GENERAL
ProtectionCurrent Limit
Overload
Overvoltage
AlarmsOutput Power Good
Input Power Fail
Thermal Warning
LED Indicators Input Power OK
Output Power OK
Operating Temperature -20°C to +70°C
Derated output power from 50°C, 2.5%/°C linear to 70°C
Storage Temperature -40°C to +85°C
MTBF @ 25°C (without fan) >200,000 hours to Bellcore
RADIAN FAMILY DC-DC FRONT-END MODULES
Model
Number 1, 2
Input
Voltage
Input
Current 4
Output
Voltage
Output
Power 2
Output
Current 2
TPCMQ24-48/20 20-30VDC 47A 48VDC 1000W 20.8A
TPCPQ24-48/25 20-30VDC 56A 48VDC 1200W 25.0A
TPCMQ24-54/18 20-30VDC 47A 54.4VDC 1000W 18.4A
TPCMQ48-12/54 3 40-60VDC 16.5A 12VDC 650W 54.2A
TPCMQ48-24/29 3 40-60VDC 16.6A 24VDC 700W 29.2A
TPCMQ48-27/26 3 40-60VDC 16.6A 27.2VDC 700W 25.7A
TPCMQ48-48/21 3 40-60VDC 20.8A 48VDC 1000W 20.8A
TPCMQ48-54/18 3 40-60VDC 20.8A 54.4VDC 1000W 18.4A

NOTES:
1. The table does not show the independent 5V, ¼A standby output which is standard on all modules.
2. Add suffix -Z for I²C option.
3. Add suffix -R for reverse airflow. Outputs derate 20%.
4. At nominal input voltage of 24VDC or 48VDC respectively.

3-BAY 19” 1RU POWER SHELF
Model
Number 1, 2
Usage Max.
Power
Max.
Current
TPCMQR1U3-24 TPCMQ24-54/18
TPCMQ24-48/20
TPCPQ24-48/25
3600W 63A
TPCMQR1U3-48 TPCMQ48-12/54
TPCMQ48-24/29
TPCMQ48-27/26
2100W 163A
TPCMQR1U3-48H TPCMQ48-48/21
TPCMQ48-54/18
3600W 63A
LTPCMQR1U3-48H TPCMQ48-48/21
TPCMQ48-54/18
3600W 63A

NOTES:
1. Blanking kit for unused position, order pt. no. 775-1450-0000.
2. To specify I²C Serial Communications append -Z to the model number.