250 Watts
HELIOS
MiniPack 250
250 Watt 48VDC Compact Power Solution
TM
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
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)
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
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
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
ASTEC [ Astec America, Inc ]
