HPL’s Solar Array Junction Box (AJB)


  • Array Junction Boxes (AJB), also referred to as PV combiner boxes, it collects 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 inverter to be converted into AC.
  • AJB is meant for combining all the incoming lines from the solar panel strings/arrays and deriving one common string/array output for the multiple array inputs.
  • HPL offers highly functional PV Array Junction Box, fabricated with the use of latest technology and is suitable for Solar Power applications of various capacities. Our PV Array Junction Box is tested by the experts under strict industry norms to guarantee flawless functioning and durability.
  • HPL array junction boxes are dust, vermin and waterproof and made of Thermoplastic (ABS).
  • HPL junction boxes have suitable cable entry points fitted with MC4 connectors of appropriate sizes for incoming and cable glands for outgoing cables (customizable as per customer’s requirements.

solar array junction box


  • HPL array junction boxes are total insulated according to the requirements of IEC 61439-1 as mandate by MNRE and tested up to an operating voltage of 1000 V DC.
  • The enclosure is made of high quality polycarbonate.
  • IP66 / 67protection.
  • The enclosure is accessible only via the use of tools in order to ensure additional protection.
  • Can be customized based on customer requirement.
  • Blocks the reverse flow of current from battery to solar panels.
  • Reliable electric safety to avoid hazard.
  • Obstructs sudden surges due to lightening strokes during cloudy and rainy conditions and ground the surges immediately.
  • Fuses for overload protection on each string.
  • Blocking Diodes for reverse current flow protection (Optional).
  • Easy DC-termination.
  • Time and money saver Solar String management.
  • Space saving and orientation flexibility.
AJB-01011 IN 1 OUTFor 1 Solar Array String
AJB-02012 IN 1 OUTFor 2 Solar Array String
AJB-03013 IN 1 OUTFor 3 Solar Array String
AJB-04014 IN 1 OUTFor 4 Solar Array String
AJB-05015 IN 1 OUTFor 5 Solar Array String
AJB-06016 IN 1 OUTFor 6 Solar Array String
AJB-07017 IN 1 OUTFor 7 Solar Array String
AJB-08018 IN 1 OUTFor 8 Solar Array String
AJB-120112 IN 1 OUTFor 12 Solar Array String
AJB-180118 IN 1 OUTFor 18 Solar Array String
AJB-240124 IN 1 OUTFor 24 Solar Array String