ALPHA400 Datasheet, PDF (3/10 Pages) DENSEI-LAMBDA – Modular Watt Box Multi-Output Power Supplies 250W/400W/600W/800W/1250W

WORLD WIDE SPECIFICATION
1) input voltage range
universal input range from 85V to 265VAC world wide commercial input
2) Harmonics Current Control
Alpha has unique active filter for compliance with IEC1000-3-2/EN61000-3-2 harmonicslimitation.
3) Adapted the international safety standards
Listed UL1950, CSA950(C-UL), EN60950 (SEMCO),
4) Conformed with CE marking
Alpha is conformed with 'Low-Voltage Directive' of the CE-Marking and indicated.
5) EMI (Conducted EMI / Radiated RFI)
Alpha is met the EMI Standard EN55022 class A/VCCI Class A (CISPR pub.22).
Alpha will be met EN55022 class B and VCCI class B using Densei-Lambda Noise Filters.
6) EMS (immunity)
Adapted EN61000-4 series (IEC61000-4series)
EN61000-4-2 Level 4 : Electro-Static Discharge
EN61000-4-3 Level 3 : Radiated Electromagnetic Radio Frequency
EN61000-4-4 Level 4 : First Transient Barest
EN61000-4-5 Level 3 : Input surge Voltage
7) Alpha 400/600/800: 3 years warranty, Alpha 250S: 2 years warranty
Example of the conformation
[Alpha 250S]
1)Alpha 250S available for 4 slots for the output
modules can be conformed the outputs.
Slot1&Slot2 use for main board only.
2)The total outputs wattage of the Alpha 250S is
maximum 250W.
3)Each specified output wattage of the output module
derating is depend on arrangement of position in the
slots, output voltage setting and ambient
temperature.
4)Internal input fuses
Alpha 250S: 250V8A
5) Harmonics Current Correction Circuit Switching
Frequency
Alpha 250S :100kHz (fixed : typ.)
6)Converter Switching Frequency
Alpha 250S :200kHz (fixed : typ.)
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