ASTEC MS250

250 Watts
HELIOS
TM
MiniPack 250
250 Watt 48VDC Compact Power Solution
Electrical Specs
Input
AC Input
Voltage Range
110 Vrms (86 - 132)
Frequency
50-60 Hz (45-65 Hz)
Efficiency
>86%
Power Factor
0.99 for > 50% rated output current
Total Harmonic
Distortion
<5% for >50% rated output current
Output
DC Output
Voltage Range
Special Features
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250W Output
Fixed DC Output Voltage: (-54.4 VDC)
Convection Cooled
Power Factor Correction
Current Sharing of up to three units
mountable on 19” or 23” brackets
Soft Switching Technology
Full Output Power at Full Temperature Range
AC Connection through IEC Type Connector
2 DC power connections for load and/or
battery strings
2 Alarm LED’s at front - RFA alarm, AC Fail
Compact Size (2.48" inches High x 5.23" wide x
11.85" deep)
Environmental
EMC/EMI: FCC Class B, part 15, subpart B, and
Bellcore 1089
-54.5 VDC +/- 0.5%
Maximum
Output Power
250 W (4.6 ADC @ -54.5 VDC)
Voltage Regulation
± 0.5%
Dynamic Response
± 0.5%
Protection and/or
Disconnect
Internal DC Fuse
Parallel Operation
± 10% of rated current between
rectifiers
Power Limit
102.5% ± 2.5% of rated power
Capacitor Precharge
Automatic upon insertion of
rectifier
Hold-up Time
Vout remains >42 V for 30 msec
Voice Frequency Noise
<55 dB rnC
High Frequency Noise
(wideband)
<100 mVrms
ESD: TR-NWT-001089, 15 kV no damage, 2 kV no
disturbance
Temperature and Humidity: -40°C to +50°C (up
to +65°C with sufficient air flow)
Safety
Acoustic Noise: <55 dB with ‘A’ weighting
164
Cooling: Natural Convection
UL 1950
Shock and Vibration: TR-NWT-000063
IEC 950
Fire Resistance: All materials UL 94-VO
CSA C22.2 # 950
America’s (USA): 1-888-41-ASTEC
Europe (UK): 44 (1384) 842-211
Asia (HK): 852-2437-9662
rev 12.01.01
AMERICAS
EUROPE
ASIA
5810 Van Allen Way
Carlsbad, CA 92008
Telephone: 760-930-4600
Facsimile: 760-930-0698
Astec House, Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX, UK
Telephone: 44 (1384) 842-211
Facsimile: 44 (1384) 843-355
Units 2111-2116, Level 21
Tower1, Metroplaza
223, Hing Fong Road
Fwai Fong, New Territories
Hong Kong
Telephone: 852-2437-9662
Facsimile: 852-2402-4426
Input Voltage
Output Voltage
Total Power
Model Number
110 VAC
-48 VDC
250 W
MS250
Option: Bracket to mount 1 to 3 systems on 19" or 23" bracket
www.astec.com
Mini Pack 250
Ordering Information
Model # P0876085
www.astec.com
165165