INSTALLATION, USE AND
MAINTENANCE
SUNWAY STRING BOX
LT 1500V 24 INPUTS
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Person with the highest level of responsibility concerning the execution of work. If required some of his/her
tasks may be delegated to others.
The Works Supervisor must give all persons involved in the execution of work activities the relative
instructions concerning reasonably foreseeable dangers which may not be immediately apparent.
Skilled electrician
Someone who has been trained and has enough technical knowledge or experience to enable him/her to
avoid the dangers which may be generated by electricity.
Instructed person
Someone who has been adequately advised or supervised by a skilled person to enable him/her to
avoid the dangers which may be generated by electricity.
1.4. SUNWAY STRING BOX LT 1500V
The SUNWAY STRING BOX LT 1500V products have been designed for maximum reliability and life
expectancy, based on numerous years of experience working with large ground and rooftop installations,
complies with the most stringent national and European safety directives.
Careful and precise design down to the very last detail and strict quality control guaranteed by standard ISO
9001 are the strong points of a reliable product which is able to maintain its features unaltered over time.
Designed to last in even the most arduous environmental conditions, Enertronica Santerno string boxes
guarantee wide safety margins during daily use.
These and other design features are what position SUNWAY STRING BOX LT 1500V at the highest level
of reliability and performance for photovoltaic field energy production.
Figure 1: SUNWAY STRING BOX LT 1500V 24 INPUTS
1.5. Operating Principle
Medium- and large-power PV generator systems are made up of a high number of strings. To optimize the
connection topology and enhance the protection and monitoring systems, the parallel connection of the
strings is usually carried out on more than one level, usually a first parallel level and a second parallel level.
Enertronica Santerno offers a complete range of products for string parallel connections, SUNWAY STRING
BOX LS, SUNWAY STRING BOX LT 1000V and SUNWAY STRING BOX LT 1500V for creating the first
parallel level and the Sunway DC-Parallel or inside the inverter for creating the second parallel level.
