#Product Trends
Inrush Current Limiter for Small PV Inverters: 3-Phase 400 VAC Input Surge Protection & High-Reliability Applications
Inrush Current Limiter for Small PV Inverters
The TPS-ICL-3P series from TPS elektronik, a specialized 3 phase inrush current limiter (ICL), offers a robust solution with a 25A rated current, IP20 protection, and a wide operating temperature range of -40℃ to 70℃.
By implementing a “front-end current limiting + back-end protection” two-stage scheme with the TPS-ICL-3P series, system designers can effectively mitigate inrush current and improve inverter stability and grid-connection behaviour.
With its compact housing, low profile and narrow width, the TPS-ICL-3P series is well suited for limited-space applications in outdoor PV power station control cabinets.
The series supports high-density installation and crowded panels by combining industrial-grade reliability with a miniature footprint for both industrial and commercial applications.
Understanding what inrush current is and how an inrush current limiter works is essential for optimizing PV inverter performance and service life in harsh outdoor environments.
The global shift toward renewable energy is driving rapid growth in photovoltaic (PV) systems. Small-scale 10–30 kW inverters have become the workhorses of residential, commercial and small industrial installations. These inverters convert DC power from solar modules into AC power compatible with the 3-phase 400 VAC grid.
However, a persistent challenge affects their reliable operation: inrush current during startup and grid connection.
