Datasheet

Made in the European Union by Alfatronix Ltd, Great Britain
EU-EN-DD-0709
GB
Part Number Power Nominal Voltage Dimensions Weight
DDi 12-12 036 36W (3A) Isolated 12Vdc input, 12Vdc output 89 x 87 x 50mm 290g
DDi 12-12 072 72W (6A) Isolated 12Vdc input, 12Vdc output 167 x 87 x 50mm 540g
DDi 24-24 072 72W (3A) Isolated 24Vdc input, 24Vdc output 127 x 87 x 50mm 440g
DDi 24-24 108 108W (4.5A) Isolated 24Vdc input, 24Vdc output 167 x 87 x 50mm 540g
DDi 24-24 168 168W (7A) Isolated 24Vdc input, 24Vdc output 217 x 87 x 50mm 780g
DDi 24-24 240 240W (10A) Isolated 24Vdc input, 24Vdc output 217 x 87 x 62mm 880g
DD 12-24 072 72W (3A) Non-Isolated 12Vdc input, 24Vdc output 89 x 87 x 50mm 300g
DD 12-24 168 168W (7A) Non-Isolated 12Vdc input, 24Vdc output 167 x 87 x 50mm 640g
DD 12-24 240 240W (10A) Non-Isolated 12Vdc input, 24Vdc output 217 x 87 x 50mm 820g
DD 48-12 072 72W (6A) Non-Isolated 48Vdc input, 12Vdc output 89 x 87 x 50 260g
DD 48-12 108 108W (9A) Non-isolated 48Vdc input, 12Vdc output 127 x 87 x 50 360g
Other input and output voltage configurations are available as special orders, please ask our sales team
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Series
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Technical Data
Input voltage range 12Vdc, 24Vdc or 48Vdc +/- 30%
Output voltage 13.6Vdc or 27.2Vdc +15% -20% at extremes of temperature, load, input tolerance, etc.
Intermittent output power Continuous rating +25%, taken for a maximum f 2 minutes followed by 8 minutes rest.
Transient voltage protection Meets !SO7637-2 International standard for 24Vdc commercial vehicles
Electrostatic voltage protection Meets ISO10605, ISO14892, >8kV contact, 15kV discharge
Output noise <50mV pk-pk (100mV on 24V units) at continuous load. Meets CISPR25 and VDE0879-3
Off load current (quiescent current) <100mA
Power conversion efficiency Typically: 90% for non-isolated units, 85% for isolated units
Isolation >400Vrms between input, output and case, on isolated products only
Operating temperature -25ºC to +30ºC to meet this specification table
-30ºC to +80ºC de rate linearly to 0A
Storage temperature
-25ºC to +100ºC
Operating humidity 95% max., non-condensing
Casework Anodised aluminium, glass filled polycarbonate, dust water and impact resistance to IP533
(excludes DDi 24-24 240 which is ventilated and fitted with a cooling fan)
Connections Four 6.3mm push-on flat blade connectors
Output indicator Red LED adjacent to 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 general EMC directive
95/54/EC The automotive directive
93/68/EEC The CE marking directive
Markings CE and e marked; e11 020894, e13 023114
Alfatronix Limited
, 29 Newtown Business Park, Poole, Dorset, BH12 3LL, England
Telephone: [phone]. Fax: [phone]
Website: http//www.alfatronix.co.uk. E mail: [e-mail]
An ISO9001:2000 Registered Company