Azzurro Three-phase String Inverters 3.3KTL - 12KTL

Azzurro Three-phase String Inverters 3.3KTL - 12KTL

Azzurro Three-phase String Inverters 3.3KTL - 12KTL

The compact ZCS Azzurro three-phase inverters are the ideal solution for small and medium sized PV systems for commercial or residential applications and small industries.

The Italian technology developed by ZCS makes the Azzurro series efficient, versatile  and highly functional.

The wide input range makes the products easy to configure and suitable for any type  of requirement, in new installations or retrofit projects.


Top energy efficiency class; max. possible efficiency: 98.3%


Available in the basic and advanced configuration


High efficiency, double channel MPPT, fast and precise tracking.


Wide imput voltage range.


Anti-UV and anti-corrosion aluminum chassis;Class II AC and DC OVP


10 year warranty. High quality components, long service life.

Certifications, User Manuals and Warranties

  • Verification of Conformity German 1 pdf 1.4MB
  • Verification of Conformity German 2 pdf 654KB
  • Factory inspection
  • CE Declaration of Conformity
  • VDE 0126 4.4-12 kW Verification of Conformity (English by INTERTEK) pdf 538KB
  • VDE 0126 4.4-12 kW Verification of Conformity (French and German by INTERTEK) pdf 218KB
  • Attestation of Conformity with EMC (2014.30.EU) - 3.3-12KTL-V1 pdf 203KB
  • Verification of Conformity with LVD (2014.35.EU) - 3.3-12KTL-V1 pdf 314KB
  • Verification of Conformity with IEC62109 - 3.3-12KTL-V1 pdf 314KB
  • Attestation of Conformity with EN50549 - 3.3-12KTL-V1 pdf 155KB
  • Certification of Conformity with VDE4105 - 3.3-12KTL-V1 [DE] pdf 3.0MB
  • Certification of Network and System Protection VDE4105 - 3.3-12KTL-V1 [DE] pdf 228KB
  • Certification of Conformity with UTE_C15 & VDE0126 - 4.4-12KTL-V1 [FR] pdf 160KB
  • Certification of Conformity with PO.12.3 - 3.3-12KTL-V1 pdf 165KB
  • Certification of Conformity with RD1699 - 4.4-12KTL-V1 pdf 152KB
          • Firmware 3.3-12 KTL (V.2.20) - For units with previous onboard firmware 2.30 rar 355KB
          • Firmware 3.3-12 KTL (V.2.50) - For units with firmware on board greater than or equal to 2.30 zip 660KB

          Other features

          ZCS Azzurro technology

          Performance optimisation
          WiFi integration on the ZCS platform for stable, effective and intelligent connectivity

          Maximum Energy Efficiency

          Maximum performance 98.3%
          Stable efficiency in all working conditions
          Rapid and accurate MPPT algorithm
          Dual input section with independent MPPT

          Flexible, Economic and Easy to Install Solution

          Protection rating of IP65
          Integrated string combiner with different configuration options
          Power Management Unit
          4- inch LCD graphic display
          Updates and diagnostics via SD card

          Reliability, Durability and Flexibility

          Rust-proof, corrosion-proof and UVproof aluminium exterior casing
          Natural ventilation cooling
          Flexible and user-friendly management of operating parameters
          Topology without transformer             
          10 year ZCS warranty

          Intelligent Grid Management

          Dynamic management of grid feed-in
          “Zero Grid Feed-in” functionality (Possible through current sensor ZST-ACC-TA and anti-reverse power controller ZSM-ZEROINJ)
          Possibility to manage reactive power
          Remote control over of the active/reactive power limit

          Ideal For Retrofitting

          Wide operating input range from 160V to 960V also suitable for small string systems
          Compact size
          Simple and user-friendly installation and conguration
          Dual MPPT channel

          ZCS Azzurro

          Why ZCS Azzurro

          Other ZCS Azzurro products

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