String-Combiner-Box-a

String-Combiner-Boxb

String Combiner Boxes

We offer a wide range of Array Junction Boxes, String Monitoring Boxes, and DC Fuse Boxes suitable for combining PV panel strings at various levels. These combiner boxes can easily handle high voltage PV strings and give on-line current data of each string used to reliably detect reduced generation or failure of any string. The product is 100% customizable and is suitable for harsh weather conditions.

FEATURES:

  1. Monitoring of up to 24 strings in a single box
  2. 100% customisable as per requirement
  3. Can be manufactured under other brand names
  4. Approved for all safety and performance standards
  5. Supplied to over 1000 MW capacity plants in India
  6. Now 1500VDC version also available
  7. No Limitation on current monitored
  8. Self Powered models available

TECHNICAL DETAILS

Parameters 24 Channel SMB

INPUT SIDE

DC Input String Voltage Range 450 -1000V
Absolute Max. DC Input String Voltage 1100V
Max. Isc Current for Each Channel 18.0A Max.
Max. No. of Input Strings 24
Current Error ±1%
Reverse Protection Optional

OUTPUT SIDE

High voltage protection Yes
Ground cable Connection Suitable for 16 mm^2
Output DC Switch Rating Up to 400A/1000V DC
O/P Cable Termination For up to 300mm sq. Cable

COMMUNICATION

User Interface Via RS485(MODBUS RTU Protocol)
Control Supply (24V DC/230V,50Hz AC or 110V DC) or Self Powered

CONFIGURABLE INPUT/ OUTPUT CHANNELS

Digital Input 1 No.
Analog Input 2 Nos.
Digital Output 2 Nos.

DATA MONITORING

Bus Voltage Yes
String Current Yes
Ambient Temperature Yes
Over Voltage Status Yes
Provision for environmental sensors Yes
Shunt Trip Status Yes(Optional)

OPERATING CONDITIONS

Ambient Temperature Range (-10 C TO 55 C)
Relative Humidity Non-Condensing
Max. Operating Altitude without Derating 1000m
Environmental Protection Rating IP65
Safety and environmental test (from TUV labs) IEC 60073 and IEC 60068 respectively
EMI/ EMC approvals (from TUV labs) IEC 61000-4, IEC 61000-3
Note: – Technical details are subject to change.
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