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Tigo TS4-A-O Module Add-On 1500V UL, MC4 Genuine

Tigo TS4-A-O Module Add-On 1500V UL, MC4 Genuine


Ships in 1 business day or less.
1.21 LBS
25 Year Manufacturer

Tigo Logo

Tigo TS4-A-O Module Add-On Rapid Shutdown, Optimization 700W, 1500V UL/1000TUV 1.2M Cable with MC4 Genuine Connectors, Part No. 461-00252-32.

Optimization is a Flex MLPE function available as an add-on unit (TS4-A-O). Design using unequal string lengths, mixed orientations, or areas of mismatch. Install in shaded areas with a reduced setback ratio. In addition to optimization, the TS4-A-O enables module level monitoring, and rapid shutdown in compliance with NEC 2014, 2017, 2020.


  • Optimization
  • Monitoring
  • Rapid Shutdown
  • Suitable for up to 700W solar modules
  • The higher performance optimizer with Predictive IV Technology (PIV)
  • The ONLY optimizer with selective deployment
  • Includes the benefits of Safety & Monitoring
  • Meets US NEC rapid shutdown requirements
  • Optimizes right out of the box
  • Shade and age tolerance to maximize lifetime yield
  • Works wirelessly with the TAP & CCA
  • 25-year warranty


  • 1 module per TS4


  • Tigo 346-00000-00 CCA
  • Tigo 158-00000-02 TAP


  • Can I use the Tigo TS4-A-O optimizers without the CCA?
    Yes, the Tigo optimizers have Predictive IV curve technology (PIV), so they can be deployed without a data connection. If there is a problem with your system, however, the only way to know exactly what is going on is if you are using a CCA. Using optimizers without a CCA may also affect a warranty claim. One very common problem is String Mis-Match. This can happen with systems that have certain design issues, like:
    • String Imbalance - Multiple strings of different lengths, in parallel
    • Mixed panel types - High Production Panels and lower Productions panels on the same string or in parallel
    • Strings that are strung across opposing angles/orientations
    • Aggressive "Block" shading (complete black-out shading from a wall or enclosure)
  • Which modules can I mix with the Tigo TS4-A-O module?
    You can only mix TS4-A-S modules with the TS4-A-O modules. TS4-A-O modules cannot be mixed with TS4-A-F or TS4-A-2F modules due to different communication architectures.
  • How can I learn more about installing Tigo TS4's?
    Available for free, on-demand, and online is Tigo Academy's TS4 Design and Installation Course.
  • Can Tigo optimizers improve my solar array performance in the event of shading?
    Yes, Tigo’s optimizers allow current to flow around weak panels, "enabling optimal energy flow. This bypass tunnel maintains the optimal flow of energy throughout the string." Tigo's article "Optimization with Predictive IV and Impedance Matching" explains in more detail.


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