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16
Ampt String Optimizer V1500 Series
Installation Manual: 57070012-1H
PV System Configurations
String Optimizers can be installed in ungrounded and resistively grounded PV systems.
Ungrounded PV Systems
Figure 4: Electrical connections for an
ungrounded
PV system
Resistively Grounded PV Systems (positive or negative)
Figure 5: Electrical connections for a grounded PV system
Fuse Sizes
CAUTION
Over-current protection devices and conductors shall be sized in accordance
with the National Electrical Code (ANSI/NFPA 70); Canadian Electrical Code,
Part I; or the applicable standards, codes, and regulations for your region.
The output current limit of the Ampt String Optimizer eliminates the need for the 1.25
multiplication factor for over-sun conditions when calculating ampacity. The 1.25 multiplier
for continuous use is still required.
Optimizer Max Output Current
(A)
Minimum Fuse Size (A)
12
15
16
20
20
25
Summary of Contents for String Optimizer V1500 Series
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