For rooftop solar commissioning
Seaward Electronic has launched the PV:1525-IV, introducing IV curve tracing capability and completing the PV:1525 Series, a range of PV installation testers for 1500V systems that combine electrical commissioning testing and IV curve tracing in a single platform
Developed for residential and commercial rooftop solar systems, the PV1525 Series combines essential electrical commissioning tests with an intuitive workflow. The addition of IV curve tracing enables installers and O&M professionals to move from core safety testing through to advanced performance analysis using the same platform.
The Series can support open-circuit voltage (Voc) measurements up to 1500V DC, short-circuit current (Isc) up to 25A, insulation resistance testing to 1500V DC, and continuity measurements, making it suitable for higher-voltage residential and commercial rooftop systems, where traditional 1000V tools may no longer be sufficient.
The PV:1525-IV extends the series by adding IV curve tracing for performance analysis, enabling installers and O&M professionals to move beyond basic safety checks and gain insight into system performance. With both models developed using the same workflow, users can choose the level of capability that best matches their application, such as fast commissioning or detailed performance analysis.
Nathan Barwell, head of product management at Seaward, said, “Installers need tools that work the way they do on site. With the PV:1525 Series, our focus has been on simplifying PV commissioning, reducing the number of tools required, and giving installers confidence that their testing is complete, compliant and ready for handover.
“With IV curve tracing integrated, the PV:1525-IV allows installers to assess module and string performance directly during commissioning. This makes it possible to identify deviations from expected performance at an early stage, without the need for additional test equipment.”
Modern PV commissioning can place increasing demands on installers due to tighter schedules and greater safety considerations when working on live systems. The PV:1525 Series has been developed to support a logical testing workflow, reducing the risk of errors while keeping testing simple and repeatable across installations.
A benefit for installers is the tester’s integrated Dynamic Surge Suppression System, which manages inrush current during short-circuit testing. The PV:1525 Series monitors and suppresses inrush current, enabling installers to safely test even on high-capacity PV arrays without risking damage to the instrument.
Integrated Bluetooth connectivity enables real-time on-site documentation of test results. Over-the-air updates keep the instrument up to date without downtime, protecting the long-term investment.
Barwell added, “The PV:1525-IV has been recognised as a finalist in The smarter E Award 2025 for innovation in photovoltaics. This recognition reflects the development of a solution that combines on-site testing with detailed performance analysis.”
Field testing in high-irradiance environments such as Malaysia, Panama and Mojave Desert confirms suitability for a wide range of operating conditions.
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