GEESYS Technologies (India) Private Limited
Solar String Combiner Boxes

Solar String Combiner Boxes

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We are instrumental in offering our clients highly functional Solar String Combiner Boxes. This Solar String Combiner Boxes, which we offer, are fabricated with the use of latest technology and are suitable for different Solar Power applications. Our Combiner Boxes is properly tested by the experts under strict industry norms to guarantee flawless functioning and durability. Also known as Array Junction Boxes (AJB), these Solar String Combiner Boxes have PV combiner boxes, basically collect DC power from PV strings with blocking diodes on each string for protecting panels from reverse current flow. The collected power is then transferred to power inverter. Also known as Array Junction Boxes (AJB), these Solar String Combiner Boxes have PV combiner boxes, basically collect DC power from PV strings with blocking diodes on each string for protecting panels from reverse current flow. The collected power is then transferred to power inverter.

GEESYS Solar Junction Boxes

  • Array/String Junction Boxes (AJB)
  • Main Junction/Pre-Combiner Boxes (MJB)
  • Combiner Boxes
  • DC Distribution Boxes (DCDB)
  • AC Distribution Boxes

Introduction

Array Junction Box (AJB) : Array Junction Box is meant for combining all the incoming lines from the solar panel strings/arrays and deriving one common array output for the multiple array inputs.

Main Junction Box (MJB) : A Main Junction Box (MJB) is used to combine the multiple outputs from multiple numbers ofArray Junction Boxes in the Power Plant and form a single output that can be connected directly to the DC Distribution Board (DCDB) or Power Conditioning Unit (Solar Inverter).

Features

  • To Block the reverse flow of current from the battery to solar panels during nights or low radiation levels.
  • To obstruct the sudden surges due to lightening strokes during cloudy and rainy conditions and ground the surges immediately.
  • Efficient String Monitoring - Optional
  • Disconnect DC at the sources
  • Fuses for overload protection on each string
  • Blocking Diodes for reverse current flow protection
  • Easy DC-termination
  • Easy and decent Cable management
  • Time effective as well as money effective for cabling
  • Step by step trouble shooting methodology
  • Contemporary DC combining and disconnecting
  • Space saving and orientation flexibility
  • Load-break rated disconnecting
  • Increased granularity
  • Traditional DC combining
  • Reliable electric safety to avoid hazard
  • Online Monitoring‘ (Optional for DCDBIACDB)

Main Functional Features of The Main Junction Box

  • The main important features of the Main Junction Box are to provide a single output.
  • The MJB consists of two bus bars. One is used to combine all the positive terminals and the other is used to combine the negative terminals.
  • Efficient String Monitoring Optional

Features

  • Touch safe
  • Surge protection via Type-2 devise for 1000V
  • DC isolation switch rated for 100oV1250A
  • HRC Fuse protection on both ve and -ve solar strings with 1000V110-20A Fuses
  • Monitoring of strings & RS485 MODBUS communication
  • IP66 polyester enclosure to withstand harsh environmental exposure
  • IP65 incoming Mo4 connector rated for 1100V DC pass
  • All ve and -ve cables rated for IP65 cable Gland M12
  • IP65 cable gland for 2°C
  • 70 sq.mm. outgoing DC feeder line
  • 6 Sq.mm. terminals for incoming solar strings
  • Designed to meet high voltage and other fault current levels of solar systems
  • Ideal for use in land based PV systems
  • Tested to extreme ambient conditions

Specification

  • Array Junction Box (AJB)
  • Terminal Block/Bus Bar
  • Disconnect Fuse
  • Diode
  • MOV-48/96V
  • SPD 600/1000V
  • lsolator/MCB/MCCB- Optional
  • String Monitoring Facility-Optional

Model

GETCETINV

GETSTRINV

Maximum DC Input Range

1000V

1000V

No of DC Inputs

2-16

2-24

No of DC Outputs

1

1 - 8

Number of Terminal Blocks

4 – 34

4 - 48

Reverse Blocking Diode, No's

2 – 12

2 - 24

Maximum Input Fuse' Rating, A

3/5/10/12/15/20/30

12/16/32/40/63

Maximum string current per fuse holder with all string fuse“

Reduction factor 0.55

Reduction factor 0.55

Maximum DC Current, A

100

192

Maximum Continuous Current, A

160

240

Isolator/MCB', A

16/32/40/63

16/32/40/63

Maximum Voltage, VDC

600/1000

600/1000

+Ve Input Wire Size,1C x sqmm

2.5 – 10

4 - 25

-Ve Input Wire Size, 10 x sqmm

2.5 – 10

4 - 25

MOV

110/680V

110/680V

Surge Protection Devioe (SPD)

600/1000V, Class II

600/1000V, Class II

Operating Temperature

-25 to 55

-25 to 55

Enclosure Type

PS/PC*

PS/PC*

Protection Type/Protection Class

IP65

IP65

Connectors‘ @ Output

MC4/MC3

MC4/MC3

Cable gland clamping range, mm

12 – 32

12 - 32

Wall mounting

Yes

Yes

Bus Bar

Yes

Yes

Operating condition

Temp :-20 to +55 Deg. C ; RH :95% non cond

Type of Protections(As per Clients requirement)

Short-Circuit, Surge

Short-Circuit, Surge

International standards followed

IEC 60364

IEC 60364

Disconnection switch

Optional

Optional

Design Life

25 years+