PU8 - 3U 12HP wide-range PSU for 19″ systems, 36 VDC nom.

Overtemperature and overvoltage shutdown

Communication with CPU

Watchdog functionality

Independent power supply for operation during standby mode (power consumption less than 1 W)

SMBus

Signals on back connector

Voltage level 3.3V

Controlled by CPU

Communication between the power supply unit and the CPU

Binary I/O

1 binary input
• Voltage level according to external power supply input voltage (max. 50.4 VDC)
• Electrically isolated
• External switch (key) with binary input
• Switch-on by key input or wake on time
• Switch-off by key input or software
• Status of binary inputs readable via SMBus

1 binary output
• Voltage level according to external power supply input voltage
• Isolated by relays
• User-specific functionality (controllable via SMBus)
• Maximum switching power: 60W (example 36V/1.6A)

Miscellaneous

DC/DC Converter
• Fuse-protected

Two status LEDs on front panel
• Green LED indicates correct input voltage
• Yellow LED indicates correct output voltage

Alternative power supply at the backplane for use as redundant PSU

Short circuit protection

Reverse polarity protection by internal protector

Input Characteristics

Nominal voltage input: 36 VDC

Wide input range: 0.7 x nominal voltage < nominal voltage < 1.25 x nominal voltage (according to EN50155)
• 25.2..45 VDC

Max. input voltage range: 0.6 x nominal voltage < nominal voltage < 1.4 x nominal voltage with full functionality for 0.1 s, no damage for 1 s (according to EN50155)
• 21.6..50.4 VDC

No load input power: < 1.6 W in standby mode

Output Characteristics

Output power (max.): 100W

Output power (min.): 5W

12V tolerance/overvoltage protection: ±5%

5V tolerance/overvoltage protection: +5%/-3%

3.3V tolerance/overvoltage protection: ±3%

Overtemperature shutdown: 50°..90°(adjustable by SMBus command)

Holdup time according to EN50155 Class S2

Connection

Input and output via DIN 41612 plug connector, type H15

Electrical Specifications

Isolation (according to EN50155)
• Input/output: 1500VDC/1000V eff
• Input/shield: 1500VDC/1000V eff
• Output/shield: 1500VDC/1000V eff
• Ground/shield: 1500VDC/1000V eff

Mechanical Specifications

Dimensions: 3U, 12HP, 128.4mm height

Integrated heat sink

Weight: 1.1 kg

Environmental Specifications

Temperature range (operation): -40..+85°C (no derating)

Temperature range (storage): -40..+85°C

Airflow: min. 10m³/h

Shock: according to EN60068-2-27

Continuous shock: according to EN60068-2-29

Vibration: according to EN60068-2-6

Protection
• Class of protection: Class II, EN 60950
• Degree of protection: IP20 (insert in rack), EN60529

MTBF

190,000+ h @ 40°C according to IEC/TR 62380 (RDF 2000)

EMC

Tested according to EN55022 (radio disturbance), EN61000-4-2 (ESD), EN61000-4-4 (burst) and EN61000-4-5 (surge)

Software Support

Driver software for SMB communication for Windows®, Linux, VxWorks®

For more information on supported operating system versions and drivers see Software.

Article No.	Description	More
17PU08-00	12HP, 25.2..45 VDC (36 V nom.), 100 W, coated, -40..+85°C screened	Photo

Article No.	Description	More
17PU05-00	12HP, 77..137.5 VDC (110 V nom.), 100 W, coated, -40..+85°C screened	More info Photo
17PU06-00	12HP, 16.8..30 VDC (24 V nom.), 100 W, coated, -40..+85°C screened	More info Photo

Article No.	Description	More
OS independent
To use MDIS™ low-level drivers, you also need one of the MDIS4™ or MDIS5™ system packages available for Linux, VxWorks®, QNX® or OS-9® (MDIS™ = MEN Driver Interface System).
13AD78-06	MDIS5™ low-level driver sources (MEN) for PU2, PU3, PU4, PU5, PU6 and CCA Rack PSU controller on SMBus Requires an MDIS4™/2004 or MDIS5™ system package	Download Details
Windows
This product is designed to work under Windows®. See below for potentially available separate software packages from MEN.
13AD78-70	MDIS4™/2004 / MDIS5™ Windows® driver (MEN) for PU2, PU3, PU4, PU5, PU6 and CCA Rack PSU controller on SMBus Requires a compatible MDIS™ system package	Download Details

For operating systems not mentioned here contact MEN sales.

Article No.	Description	More
17PU08-DS	PU8 Data Sheet (PDF)	Download