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22 Specifications
Electrical specifications of the Helios Rectifier 100/48
The electrical specifications of the Helios Rectifier 100/48 are listed in
Table 25.
3.7.2 Helios Rectifiers 200I/48 and 200E/48
Mechanical specifications of the Helios Rectifiers 200I/48 and 200E/48
The mechanical specifications of the Helios Rectifier 200I/48 and 200E/48 are listed in
Table 26.
Table 25 Electrical specifications of the Helios Rectifier 100/48
Parameter Specification
Input voltage:
208/240 V AC, 1-phase, 47-63 Hz
Input voltage range: 176 to 264 V AC
Input current:
31 A nominal at 208 V AC input and -56 V DC, 100 A output
Recommended AC
service input:
50 A, two pole AC circuit breaker
Output voltage:
Float: -48 to -58 V DC
Equalize: 0 to 4 V DC above Float
Maximum: -59.5 V DC
Output current:
100 A per rectifier
100 A for a one position shelf
300 A for a three position shelf
Input protection:
A two pole / 45 A circuit breaker opens both lines.
Output protection:
The rectifier is protected by a 120 A circuit breaker at the output. The output current
is limited to a value adjustable from 50% to 105% of the rated capacity of the
rectifier. This circuit is factory set to 105 A.
Output regulation:
The rectifier output voltage is automatically regulated to remain within ±0.5% of the
selected value under all load conditions and within the specified input voltage,
frequency, and ambient temperature ranges. And within + 1% for any combinations
of specified input, output and environmental conditions.
Efficiency:
Efficiency is better than 88% at a nominal input voltage of 208/240 V AC and an
output load greater than 40 A.
Power factor:
Power factor is 0.99 at a nominal input voltage of 208 V AC and output loads greater
than 40 A.
Electromagnetic
interference (EMI):
The rectifier meets the FCC requirements for conducted and radiated EMI for Class
“A” equipment.
Heat dissipation:
763 W (2606 Btu/hr)
Table 26 Mechanical specifications of the Helios Rectifiers 200I/48 and 200E/48
Figure Height Depth Width Weight
Figure 22
254 mm
(10 in.)
559 mm
(22 in.)
521 mm
(20.5 in.)
42.3 kg
(93 lb)