String boxes

STRING BOXES

The operation of a photovoltaic installation is very simple, there is a generation, distribution and transformation of electric energy. The most common elements in a system are the photovoltaic panels, the inverters group and transformer. The panels are responsible for the generation of electric energy, and therefore the key element to provide an installation performance, inverters group, converts the DC voltage to three-phase alternating voltage, at the end of any facility, must have a current transformer, which transforms the low voltage to medium or high voltage, and the energy is transported to the places of consumption.

There may be some variations, and photovoltaic off grid installations, batteries which need to accumulate power and DC power supply to the user when appropriate.

In all PV plant, as there is a generation and distribution, must be several elements: protection, measurement and control.

  • Protection, teams that protect people and facility investment potential power outages (photovoltaic panels, Investors, etc…).
  • Measure, across photovoltaic, elements must be measured consumption or power supply, teams are normally regulated by the electric company.
  • Control, if we want to effectively manage an installation, we can control and know in every moment the amount of electricity generated and distributed in all areas of the facility.

SITEC AISPRO Box IP55

sirecno solar isolation switchEquipment designed to electrically protect the photovoltaic panels overvoltage and overcurrent possible. It comes equipped with a load break switch, you can cut the line of the panel group and thus take corrective or preventive tasks in this area. The equipment comes with fuses (1000 Vdc), that protect 2 poles (+ Y -) possible overcurrents. All equipment Level 1, They come with surge protectors, as it is common in areas where photovoltaic installations are located (fields, rural zones, etc..), occurring surges caused by lightning.

Special features:

  • Enolvente UNINTER (doble aisolation)
  • Protection IP55 s/n UNE 20324 / IEC 60529
  • IK09 (10 Joules) s/n EN 50102 / IEC 62262
  • Disconnecting switch for 900-1000 Vdc

Model *Dimensions (mm) In INT S.T.
SI-IPB55-40A 270x270x171 40 A NO
SI-IPB55-125A 270x270x171 125 A NO
SI-IPB55-250A 360x360x171 250 A NO
SI-IPB55-315A 360x360x171 315 A NO
SI-IPB55-40ST 270x270x171 40 A AND
SI-IPB55-125ST 270x270x171 125 A AND
SI-IPB55-250ST 360x360x171 250 A AND
SI-IPB55-315-ST 360x360x171 315A AND

SITEC String Box – IP55

sitecnosolar string box with protections

Equipment designed to electrically protect the photovoltaic panels overvoltage and overcurrent possible. It comes equipped with a load break switch, you can cut the line of the panel group and thus take corrective or preventive tasks in this area. The equipment comes with fuses (1000 Vdc), that protect 2 poles (+ Y -) possible overcurrents. All equipment Level 1, They come with surge protectors, as it is common in areas where photovoltaic installations are located (fields, rural zones, etc..), occurring surges caused by lightning.

Special features:

  • Enolvente UNINTER (doble aisolation)
  • Protection IP55 s/n UNE 20324 / IEC 60529
  • IK09 (10 Joules) s/n EN 50102 / IEC 62262
  • Switching to switch 900-1000Vdc
  • Surge Protector with downloader 40 kA discharge.
  • Bases fuses up to 20A – 900-1000 Vdc
 
 

Model *Dimensions (mm) In INT S.T.
SI-SB55-3S-40A 270x270x171 40 A AND
SI-SB55-4S-40A 270x270x171 40 A AND
SI-SB55-5S-250A 360x360x171 50 A AND
SI-SB55-6S-315A 360x360x171 50 A AND
SI-SB55-7S-40ST 270x270x171 125 A AND
SI-SB55-8S-125ST 270x270x171 125 A AND
SI-SB55-9S-250ST 360x360x171 125 A AND
SI-SB55-10S-315ST 360x360x171 125 A AND

SITEC String Box IP66

sitecno solar dc switch box

Equipment designed to electrically protect the photovoltaic panels overvoltage and overcurrent possible. It comes equipped with a load break switch, you can cut the line of the panel group and thus take corrective or preventive tasks in this area. The equipment comes with fuses (1000 Vdc), that protect 2 poles (+ Y -) possible overcurrents. All equipment Level 1, They come with surge protectors, as it is common in areas where photovoltaic installations are located (fields, rural zones, etc..), occurring surges caused by lightning.

Special features:

  • Enolvente ARINTER
  • Degree of protection IP66 s / n UNE 20324 / IEC 60529
  • IK09 (10 Joules) s/n EN 50102 / IEC 62262
  • Switching to switch 900-1000Vdc
  • Surge Protector with downloader 40 kA discharge.
  • Bases fuses up to 20A – 900-1000 Vdc
 
 

Reference Dimensions * Nº Strings In FUS In INT S.T.
SI-SB66-3S-40A 400x300x200 3 10 A 40 A AND
SI-SB66-4S-40A 400x300x200 4 10 A 40 A AND
SI-SB66-5S-40A 500x600x230 5 10 A 125 A AND
SI-SB66-6S-125A 500x600x230 6 10 A 125 A AND
SI-SB66-7S-125A 500x600x230 7 10 A 125 A AND
SI-SB66-8S-125A 500x600x230 8 10 A 125 A AND
SI-SB66-9S-125A 500x600x230 9 10 A 125 A AND
SI-SB66-10S-125A 500x600x230 10 10 A 125 A AND
SI-SB66-11S-125A 500x600x230 11 10 A 125 A AND
SI-SB66-12S-125A 600x800x300 12 10 A 125 A AND
SI-SB66-13S-125A 600x800x300 13 10 A 125 A AND
SI-SB66-14S-125A 600x800x300 14 10 A 125 A AND
SI-SB66-15S-250A 600x800x300 15 10 A 250 A AND

SITEC AISPRO Box IP55

sitecno solar panel meter box3

Electrical Protective Equipment Current (PCA). Equipment designed to electrically protect the line from the inverter output to the input as protective equipment and regulated by the electricity company. As a key feature, It is a team that incorporates an actuation of automatic reset, that in case of leakage, Search item if the leak persists and should not persist Team has a breaker switch 20A to 630A give yourself a differential switch with sensitivities automatically reset 30 mA or 300 300 mA or differential programmable relay resettable. (SITECNO recommend to install a surge protector)


Reference Dimensions (mm) In (A) S.T.
SI-IPB55AC-63A 270x540x171 63 A NO
SI-IPB55AC-160A 630x540x171 160 A NO
SI-IPB55AC-250A 630x540x171 250 A NO
SI-IPB55AC-63ST 270x270x171 63 A AND
SI-IPB55AC-160ST 630x540x171 160 A AND
SI-IPB55AC-250ST 630x540x171 250 A AND