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PU21 - Wide-Range Power Supply Unit for Railway Systems, 100 to 240 VAC, 120 W

3U 6 HP PSU

The PU21 is a plug-in power supply unit for 19" systems (e.g. VMEbus, CompactPCI) and is fully compliant with EN 50155.

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  • PU21 Product ImagePU21 3U 6 HP Wide-Range PSU for Railway Systems, 100 to 240 VAC, 120 W
  • PU21 Product ImagePU21 3U 6 HP Wide-Range PSU for Railway Systems, 100 to 240 VAC, 120 W
  • PU21 Product Image
  • PU21 Product Image

Main Features

  • 3U, 6 HP, 19" rack mountable
  • Input voltage range of 100 to 240 VAC
  • Output power 120 W without derating
  • Holdup time 20 ms
  • Active power sharing
  • Inverse current protection
  • Redundant output voltage monitoring
  • H15 rear connector
  • -40 to +85 °C with qualified components
  • Conformal coating
  • Fully EN 50155 compliant
  • Prepared for SIL applications
PU21 Product Image

Technical Data

Input Characteristics
  • Nominal input voltage range: 100..240 VAC
  • Maximum input voltage range: 90..264 VAC
  • Maximum input power: 135 W
  • Standby voltage: 5 V
  • Power-on/-off threshold
  • Inrush current limiting
Output Characteristics
  • Output voltages: 12 VDC, 5 VDC and 3.3 VDC
  • Standby output voltage: 5 V with a 5 W load
  • Accuracy: Max. ±1% of the nominal value
  • Holdup time: 20 ms (at an input of 100 V)
  • Dynamic load distribution
    • 120 W for complete temperature range without forced airflow
    • Load sharing between 12 VDC output and 5 VDC output, including 3.3 VDC
Connection
Type H15, DIN 41612 plug connector
Status Indicator
Indicates
  • Input power failure
  • Output voltage failure
  • Fail-over temperature
Parallel connection
Up to six power supply units can be used in parallel
  • Extends availability (backup protection against faults)
  • Extends power
  • Increases performance
  • Ensures redundancy
Miscellaneous
  • Overload and short circuit protection
  • Standby voltage at power down, always available
  • Reverse polarity protection for input voltage and short circuit
  • Output voltage and temperature supervision
  • Overtemperature and overvoltage shutdown
  • Status LED on front panel
Electrical Specifications
  • Isolation (according to EN 50155)
    • Input/output: 3100 VAC
    • Input/shield: 3100 VAC
    • Output/shield: 1000 VAC
  • According to EN 60950-1
Mechanical Specifications
  • Dimensions: 3U, 6HP
  • Integrated heat sink
  • Weight: tbd
Environmental Specifications
  • Temperature range (operation): -40..+70°C (85°C/10 mins), no derating
  • Temperature range (storage): -50..+85°C
  • Temperature: 70°C, with up to 85°C for 10 minutes according to class Tx (EN 50155)
  • EMC Emission:
    • EN 55022: CISPR 22 - Class B
  • EMC Immunity: EN 55024 - Class A
  • Airflow: Convection cooling
  • Cooling test according to EN 60068-2-1
  • Dry heat test according to EN 60068-2-2
  • Shock: 50 m/s², 30 ms (EN 61373)
  • Vibration (function): 2.02 m/s², 5 Hz - 200 Hz (EN 61373)
  • Vibration (lifetime): 11.44 m/s², 5 Hz - 200 Hz (EN 61373)
MTBF
min. 600 000h @ 40°C according to IEC/TR 62380 (RDF 2000)
Safety
  • Flammability
    • PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
  • Electrical Safety
    • EN 60950-1
    • Insulation measurement test according to EN 50155 (12.2.9.1)
    • Voltage withstand test according to EN 50155 (12.2.9.2)
EMC Conformity
  • EN 55011 (radio disturbance)
  • IEC 61000-4-2 (ESD)
  • IEC 61000-4-3 (electromagnetic field immunity)
  • IEC 61000-4-4 (burst)
  • IEC 61000-4-5 (surge)
  • IEC 61000-4-6 (conducted disturbances)

Options

Ordering Information

Standard PU21 Models
17PU21-00

120W, 3U 6HP PSU, wide range input 100 to 240VAC, output 12V/5/3.3VDC, -40..+85°C with qualified components, conformal coating