MS250 Datasheet, PDF (1/2 Pages) Astec America, Inc – 250 Watts

250 Watts
HELIOS^TM
MiniPack 250
250 Watt 48VDC Compact Power Solution
Special Features
• 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
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)
Acoustic Noise: <55 dB with ‘A’ weighting
Cooling: Natural Convection
Shock and Vibration: TR-NWT-000063
Fire Resistance: All materials UL 94-VO
Electrical Specs
Input
AC Input
Voltage Range
Frequency
Efficiency
Power Factor
Total Harmonic
Distortion
110 Vrms (86 - 132)
50-60 Hz (45-65 Hz)
>86%
0.99 for > 50% rated output current
<5% for >50% rated output current
Output
DC Output
Voltage Range
Maximum
Output Power
Voltage Regulation
Dynamic Response
Protection and/or
Disconnect
Parallel Operation
Power Limit
Capacitor Precharge
Hold-up Time
Voice Frequency Noise
High Frequency Noise
(wideband)
-54.5 VDC +/- 0.5%
250 W (4.6 ADC @ -54.5 VDC)
± 0.5%
± 0.5%
Internal DC Fuse
± 10% of rated current between
rectifiers
102.5% ± 2.5% of rated power
Automatic upon insertion of
rectifier
Vout remains >42 V for 30 msec
<55 dB rnC
<100 mVrms
Safety
UL 1950
IEC 950
CSA C22.2 # 950
164 _{America’s (USA): 1-888-41-ASTEC}
Europe (UK): 44 (1384) 842-211 Asia (HK): 852-2437-9662
rev 12.01.01