Unipower Sageon Micro Power Module User Manual

Commissioning Sageon Micro Power Module Manual
PM990-4207-00, Rev. 6
3-7
3.3.5 Surge protection requirements
The rectifiers are internally protected for surges up to 6kV/3kA. For higher levels of protection, particularly for
sites with high incidence of lightning or switching surges, additional surge protection is required on the AC feed to
the Power shelf. Typically surge arrestors with a 10kA-40kA rating are required with the highest level of protection
being provided when arrestors are connected between phase-neutral (x3 phases) and between phase/neutral-earth (x
3 phases).
Other arrangements (for 3-phase “Y”) with similar levels of protection are also possible as shown below. The
voltage rating of the arrestor should be selected based on the maximum AC voltage likely to appear on the line. The
arrestor should limit the voltage to <1200V – 1400V at the rated maximum pulse current.
Figure 3.8 Surge Protection

Unipower Sageon Micro Power Module Specifications

Input Power

input voltage	85-300VAC
inrush current	<9A RMS per rectifier
power factor	>0.98 for >50% output power

Output Power

output voltage for -48VDC systems	adjustable range 42.0V to 59.5V
output voltage for +24VDC systems	adjustable range 21.0V to 30.0V
efficiency for 48VDC systems	>90% at 100% output power

Environmental Conditions

operating temperature	-40°C to +70°C
full power temperature range	-40°C to +55°C
storage/transport temperature	-40°C to +70°C

Mechanical Dimensions

width	483mm (19”)
depth	355mm (14”)
height	88mm – 352mm (3.4” – 13.6”) depending on configuration