Tigo TS4-A-O

Increase energy production with shaded & mismatched modules up to 700W
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Optimization is a Flex MLPE function available as an integrated modular junction box base (TS4-O) or 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
Features and benefits
  • 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

Additional resources



To view all Tigo downloads, click here
Datasheet: TS4-A-O (Optimization) - 700W (15A)
Technical Documentation
Quick Start Guide: TS4-A-O (Optimization) - 700W (15A)
Installation Manual - TS4-A-O, TS4-A-S, TS4-A-M, CCA, TAP - 2021
Whitepaper - Impedance Matching
Whitepaper - Optimization with Impedance Matching and Predictive IV
Whitepaper - Quantifying Mismatch
DNV-GL Field Engineering Evaluation Report
Marketing Materials
Case Study - Tigo optimizers maximize home solar production across seven roof orientations
Case Study: A home solar array with five orientations in the Netherlands
Case Study: Spanish neighbors average 21% Reclaimed Energy with Tigo optimizers
Rapid Shutdown Solutions Brochure
Tigo Energy Intelligence (EI) Monitoring Brochure
Reclaimed Energy Flyer - EMEA
Reclaimed Energy Flyer - North America
Tigo Commercial & Residential Flyer - North America
Case Study: Harvesting 36% Energy with Optimization
Case Study: Energisus Residential LatAm
Case Study: Minimizing BOS Costs on a Curved Roof Design
Case Study: Optimizers added to existing US residential array
Case Study: Optimizers at Brazil Distributor HQ
Case Study: Optimizers at a temple with a unique roofline
Case Study: Optimizers maximize output for an Australian eco resort
Case Study: Output of array in Japan increases 7% when Tigo optimizers are installed
Case Study: Remedying Mismatch & Shading with Tigo
Case Study: Solar installer chooses Tigo for his large home system
Case Study: Surviving the Antarctic Extreme with Tigo's Remote Monitoring
Case Study: Tigo optimizers maximize output at Australian apartment complex

System diagram

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