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MVAC400 Series
400W 3" x 5" High Density AC-DC Power Supply Converter
ENVIRONMENTAL CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
Max.
Units
Storage Temperature Range
-40
85
Operating Temperature Range
Operating Humidity
Operating Altitude
MTBF
Shock
Operational Vibration
See power rating curves
Start up
Non-condensing
Telcordia SR-332 M1C3 @25°C
Operating, MIL-HBK-810E
Non-operating, MIL-HBK-810E
IEC-68-2-27 standard
-10
-20
10
-200
474K
Complies
Complies
Complies to levels of IEC721-3-2
70
95
5000
°C
%
m
Hours
IEC60950-1:2006/A11:2009
UL60950-1 2nd Ed. 2007-03-27, CSA22.2 N0.60950-1 2nd Ed. 2007.03,
EN60950-1:2006+A11:2009
Safety
Warranty
Outside Dimensions
Weight
IEC60601-1 Ed. 3 MOOP
ANSI/AAMI ES60601-1 (2005+C1:09+A2:10), CSA 22.2 No. 60601-1 (2008) 3rd Edition MOOP
EN60601-1:2006 3rd ed. MOOP (Pending)
CE Marking per LVD
2 years
3.0" x 5.0" x 1.4" (76.2mm x 127mm x 35.6mm)
0.8lbs (362.87g)
RESIDUAL RISK (PER ISO 14971 & IEC60601-1) FOR USER CONSIDERATION
Fault Condition
Complies
PROTECTION CHARACTERISTICS
Residual Risk
Contact your Murata salesperson for details
Parameter
Conditions
Min.
Typ.
Max.
Units
Over Voltage Protection
4
V1 (main output) latching
V3 (aux output) latching
110
5.5
125
7.5
%
V
Over Current Protection 4
Over Temperature Protection
V1, hiccup mode
V3, auto-recovery
Auto-recovery
110
110
Complies
130
150
%Amax
Remote Sense Short Circuit Protection
Remote Sense Reverse Connection Protection
ISOLATION CHARACTERISTICS
Complies
Complies
Parameter
Conditions
Min.
Typ.
Max.
Units
Isolation
Primary to Chassis (1xMOOP)
1500
Primary to Secondary (2xMOOP)
Secondary to Chassis (1xMOOP)
Output to Output
3000
500
500
Vac
Earth Leakage Current (under single fault condition)
Earth Leakage Current (under normal conditions)
264Vac, 60Hz, 25°C
264Vac, 60Hz, 25°C
300
150
μA
μA
CURRENT SHARING OPTION – MVAC400-xxAFD ONLY
Model Number
MVAC400-12AFD
MVAC400-24AFD
MVAC400-48AFD
Description
Current Sharing Notes:
Main Output: Current share is achieved using the droop method. Nominal output voltage is achieved at 50% load and output voltage drops at
a rate of 30mv per amp for 12V output, 120mV per amp for 24V output, and 500mV per amp for 50V output. Startup of parallel power supplies
is not internally synchronized. If more than 400W combined power is needed, start-up synchronization must be provided by using a common
PS_ON signal. To account for ±10% full load current sharing accuracy and the reduction in full load output voltage due to droop, available
output power must be derated by 15% when units are operated in parallel. Current sharing can be achieved with or without remote sense
connected to the common load. If ORing protection is desired, please contact Murata sales for external ORing FET board or external ORing FET
reference circuit design.
Aux (V3) output can be tied together for redundancy but total combined output power must not exceed 10W, external ORing devices must be
used.
Fan (V2) can be tied together for redundancy but total combined output power must not exceed 12W, external ORing diodes can be used.
www.murata-ps.com/support
MVAC400.A10 Page 2 of 7
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