PowerVerter 24Vdc to PowerVerter 24Vdc to 12Vdc Converters 12Vdc Converters 24Vdc to 12Vdc Also, the low heat dissipation allows them to be mounted in less well-ventilated positions Converters which makes installation These products offer a convenient way to easier. operate mass produced 12Vdc equipment, such as cell phones, in car entertainment Rugged and Compact equipment, professional communication The converters are enclosed in equipment, refrigerators, televisions, etc. a rugged aluminium extrusion. from the 24Vdc mobile electrical systems The low mass Surface Mount found on diesel engined vehicles and vessels Technology components are also and the 28Vdc systems found on aircraft. less prone to vibration damage, further increasing the reliability A Comprehensive 24Vdc to 12Vdc of the units. The use of SMT results in very compact unit, Converter Range making it easier for the installer to The PowerVerter converter series, is a sub group find a convenient location. of our PowerSelecter range of converters that offer a wide range of input and output voltages Tamper Proof between 12Vdc and 48Vdc (see the PowerSelecter All the PowerVerter products are CE marked, e leaflet). For voltages above 48Vdc see our marked and meet the requirements of FCC Class B. There are no ventilation holes to permit stray PowerMaster Converter leaflet. objects, dust or water droplets to enter the This leaflet covers the PowerVerter series, ten case. No external fuses to be tampered with. Secure Isolation products from 3 Amps to 30 Amps in isolated or Fuses will only blow if there is a fault so there common earth configurations. They have been Its your choice. The PowerVerter range offers an is no need to make them accessible. optimised for high volume 24Vdc to 12Vdc isolated option at every power rating. Some applications such as on heavy goods vehicles, vehicle manufacturers, such as Scania, require Fast Installation that the converter shall be ground loss coaches, buses, construction, forestry and agricultural vehicles and commercial vessels, protected. This means that the output voltage All the units consume an off load current of less yachts and all types of aircraft. Consequently shall not exceed the specification if the supply than 15mA, which is probably less than the self they are manufactured at low cost and offer ground connection or/and the load ground discharge current of the vehicles battery. In most excellent value for money. All the products may connection is lost. This requires an isolated cases this can be ignored, speeding the installation converter. Isolated converters also prevent a also be used for constant voltage lead-acid by removing the need to fit a remote switch. battery charging direct connection between the 24Vdc input and All the products fit onto a Click n Fit providing the battery the 12Vdc appliance in the case of a mounting clip which is fixed in three points manufacturers semiconductor failure. allowing it to be mounted on uneven surfaces. guidelines are It is easy to fit the clip into awkward places and followed. then simply click the unit into position. Cool Running A red LED indicates when there is output from The converters operate with a power the converter, this gives reassurance to the conversion efficiency as high as 93%. installation engineer and speeds fault finding. This results in very little heat being generated. The reliability of Product Coding semiconductors is inversely proportional to temperature so high efficiency leads The product code is developed as follows, take to high reliability. The Mean Time PV3i as an example: Between Failure figure is around 160 years PV PowerVerter 24Vdc to 12Vdc converter 3 3 amps continuous output (12 Vdc output at 3 amps) i Isolated between input and output (s indicates switchmode, non-isolated) AlfaTRONIX for use on vehicles, vessels and aircraftChoose your PowerVerter Isolation All PowerVerters convert Non-Isolated Isolated 24Vdc to 12Vdc Common Negative Input to Output Load 3/6A PV3s PV3i Continuous/ 6/10A PV6s PV6i intermittent 12/18A PV12s PV12i 18/21A PV18s PV18i 24/30A PV24s PV24i The intermittent current may be drawn for a maximum of 2 minutes followed by 8 minutes rest. Technical data Model Size Weight Model Size Weight PV3s 66x87x50mm 256g PV18s, PV24s, PV6s, PV3i 88x87x50mm 318g PV12i 166x87x50mm 610g PV12s, PV6i 126x87x50mm 455g PV18i, PV24i 216x87x50mm 750g Common Characteristics Input Voltage Range 17 to 32Vdc Transient Voltage Protection Meets ISO7637-2 International Standard for 24Vdc Commercial Vehicles Electro Static Voltage Protection Meets ISO10605, ISO14892, >8kV contact, 15kV discharge Output Voltage 13.6Vdc. Worst case limits are +15% and -20% Output Noise <50mV pk-pk at continuous load. Meets CISPR25 and VDE0879-3 Off Load Current <15mA Power Conversion Efficiency Typically: 85% for isolated units, 90% for non-isolated units Isolation >400Vrms between input, output and case, on isolated products only Mean Time Between Failures >162 years (HRD4) Operating Temperature -25C to +30C to meet this specification table +30C to +80C de-rate linearly to 0A Storage Temperature -25C to +100C Operating Humidity 95% max, non condensing Casework Anodised Aluminium, Glass Filled Polycarbonate. Dust water and impact resistance IP533 Connections Four 6.3mm push-on connectors Output Indicator Red LED adjacent to the output terminals Mounting Method Click n Fit Mounting clip, fitted separately using three hole fixing Safe Area Protection: Over Current Limited by current sensing circuit Over Heat Limited by temperature sensing circuit Transients Protected by filters and rugged component selection Catastrophic failure Protected by internal input and output fuses Approvals 89/336/EEC The EMC Directive 95/54/EC The Automotive EMC Directive 93/68/EEC The CE Marking Directive VIDG5 For use on Police and Fire Vehicles Tested to ISO7637, ISO10605, ISO14892, ISO14893, ISO11451, ISO11452, CISPR 25, VDE0879-3, EN60945 Annex A Markings CE Marked and e Marked AlfaTronix Limited 29 Newtown Business Park, Poole, Dorset BH12 3LL Great Britain. AlfaTRONIX Tel: +44 (0) 1202 715517. Fax: +44 (0) 1202 715122. E-mail: sales alfatronix.ltd.uk Web Site: