New DC/DC converter PSC-series 100-240 W

New 20% smaller PSC-series DC/DC converter!

Polyamp a release new version ofthe popular DC/DC converter series PSC150 – PSC240
We increased the highest input voltage up to 550 Vd.c. as demands start to increase in this domain and outputs from 5 V to 125 Vd.c. between 100 to 240 W output power with convection cooling.
Main features with the new PSC-series are:

  • Very low emissionsand high immunity (EMC) both on input and output
  • Compact self convection cooled design
  • Operating temperature +55°C,
    features or option for -40, +70°C, (+85°C 10 min)
  • DC Inputs from 16 up to 560 Vdc
  • Outputs 5V up to 125 Vdc
  • Short lead times
  • CE-marked, EMC, Safety and RoHS II

We also emphasize the two different mechanical stiles:

  • N-mechanics, 42 mm high, intended for wall, chassis and DIN rail mounting
  • L-mechanics, Euro format 3HE with 8TE and options to 12TE.

PSC-serries 38 mm or 8TE mechanics

New PSC-series L- and N-mechanics

You can download the datasheet from our home page


I would like more information, please contact me!

Polyamp ISO 9001:2008 certified

iso-9001-engPolyamp is from March 2014 fully ISO 9001:2008 Certified after a third party review of the company quality management system.

A documented quality system has been in place since 1993 and dedicated quality audits by our customers has been the preferred way to comply with the customer quality expectations.

Encouraged by an international customer, Polyamp decided in August 2013 to go for the formal certification which is now in place without exclusions. In addition to the ISO 9001 Polyamp is also qualified for an extension (1E) for Nuclear Power plants (issued by Swedish Vattenfall). The ISO 9001 certification is valid for the two Polyamp plants in Sweden.

pdf ISO 9001:2008 Certificate (268 KB)

PM500 new Polyamp DC/DC family

pm500-110PM500 a new generation 500 W convection cooled DC/DC converters. It's a free standing unit that can be mounted on wall, chassis, DIN-rail. The units fits into 19"-rack mounting 2U and can be stacked with the optional panels as 2 pluggable units 2U or 5 units with 6U panel.
Inputs 110 and 220 Vd.c. with outputs 13.2 - 110 V. Very low noise input and output.  As an option 24 and 48 V output meet the EN55022 level B.
Wide input voltage ranges to meet requirement in railway or vehicles are available.


  • Only 2U including convection cooling.
  • Pluggable in 19"-rack format: 2U with 2 units, 6U with 5 units.
  • Convection cooled -25 to+70°C
  • Two outputs, before and after series diode
  • Over and under voltage alarm
  • Overvoltage protected output
  • Over temperature limit


  • +70°C convection cooled at known load
  • Input voltage range according to Railway EN50155/IEC60571
  • Modification for minimum fire load according to Raylway EN 45545
  • EN/IEC 6100-4-5 level 4, thus ±2 kV/±4 kV (2/12 Ohm)
  • Panels for 19" monting 2U and 6U
  • DIN TS-35 mounting


The PM500 series meets the low emmission levels according to light industry and telecom EN/IEC 61000-6-3. As an option special Telecom requirements EN55022 level B can be met on output.

Heavy industry Immunity according to EN/IEC 61000-6-2 however we also meet tougher levels used in Sub-stations, railway and power utilities.

This means we meet the Generic Immunity levels EN/IEC 61000-6-1 & 6-2 and Emission levels  EN/IEC 61000-6-3 & 6-4 are met, which means this converter can be installed in all environments defined in the EMC directive.


Electric safety EN/IEC 60950
EMC as described, please note EMC as well on output
RoHS directive 2011/65/EC

Fire and smoke DC/DC converter

How can a standard DC/DC converter meet the Smoke and Fire standards?

fire-smoke The purpose of EN 45545 is that train coaches are designed in such a way that passengers have enough time to evacuate in case of emergency. EN 45545 regulates all fire safety aspects for railway vehicle and defines three requirement levels (hazard level), depending on the type and area of operations, whereas HL3 stands for the highest level. The so far national fire safety specifications for the railway industry were being supplemented by the new European Fire Safety Standard EN 45545.

The obvious solution is to put all electronics into fire enclosures, which however is not always possible. One key aspect for Polyamp’s product success is that we use a more expensive, but extremely solid aluminum case to protect their DC/DC converters. This ensures not only very good cooling, but also high mechanical stability, protection against dust and excellent EMC performance. Thanks to this product concept Polyamp’s engineers realized the fulfillment of EN 45545 within short time with only small modifications.

Additional information: The 30 to 500 W units fall in the category of “non listed product” < 100 g of EN 45545-2. The connector is less than 20 g and approved NFF16 101/102 and thus also meeting UNI CEI 1170, DIN5510 Class III, BS 6183.

Following film shows an demonstration, duration 57 seconds.

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umiss-mkPolyamp have significantly updated its proven Multi Influence Sensor System UMISS©.
Significant Improvements is reduced size and weight and increased functionality such as:

  • Increased frequency range for the Magnetic and Electric sensors; now up to 3kHz user selectable
  • Enhanced Inclination sensor and a new Humidity sensor
  • Sea cable can now be ruggedized copper cable Ethernet TCP/IP with extended range up to 1000 meters
  • The UMISS© standard software has improved with Waterfall, FFT analysis and more

After the enhancement the updated UMISS sensor is called the UMISS© MKII. The UMISS© MKII is already in proven International use.
See the separate data sheet of the UMISS© MKII for more information.

pdf  UMISS© MKII datasheet (388.24 kB)


New 3300 W Bench power supply from Delta Elektronika

What else do you wish from a labb power supply?


SM3300 has both one and three phase input, built in Ethernet interface with sequencer. You can adjust all parameters from the display and store the setting on a USB. In reverce you can set settings and sequences from a USB. They can off cause supply voltage and current that has both electrically and audibly low noise. 5 models and 4 with autoadjusted double voltage and current ranges.

More information

SM3300 lab power supply data

Models & Data


CVN 77 Deperming process in record time

norfolkmoveIn beginning of Mars 2012 the CVN77 set new record in Deperming. Polyamp feels that our system was an important factor to achieve this record.
Polyamp supplied mid 2008 a Degaussing system to the CVN77 carrier. It is the largest Degaussing system Polyamp has ever designed and delivered with 360 kW installed power. The 10 January 2009 it sailed out from the shipyard Newport News Shipbuilding, Virginia to start commisioning test.

Polyamp receives the Raytheon Supplier Excellence Award


Åtvidaberg March 17, 2010 - Polyamp AB was recognized for its quality and performance by Raytheon Integrated Defense Systems. Polyamp received the Five Star in the Supplier Excellence Award at a ceremony held on March 2, 2010.

Raytheon recognizes its suppliers based on three important factors: on-time delivery measures, sustained performance on quality and commitment to continuous process and quality improvement. The Five Star is the highest rank within the Supplier Excellence Award.

Read more ...


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