Tag: UL 3741

  • Fronius USA hosts fire officials for PV Hazard Control safety training

    We mentioned the need for solar installers to reach out to their local fire departments and AHJs to explain the nuances of rapid shutdown systems and UL 3741-lised PV Hazard Control Systems (PVHCS). Global inverter manufacturer Fronius USA took the lead last week, inviting fire department officials to its U.S. Headquarters in Portage, Ind., for……

  • Solis, Sollega showcase one example of UL 3741-listed system

    UL 3741 listed systems, or PV hazard control system (PVHCS) as they were termed in NEC 2023, are a hot topic in C&I solar. UL 3741 provides an alternative to the previous sole solution of utilizing MLPEs on all rooftop PV arrays to meet the 690.12 requirements for conductors inside the array boundary. From the……

  • PanelClaw completes UL 3741 listing that includes 23 inverter models

    PanelClaw, an Esdec Solar Group Company and a renowned flat-roof solar racking company, has completed the UL 3741 listing process for its flagship flat roof racking platform, clawFR, with a slew of inverter models. The UL 3741 listing is the most comprehensive flat-roof listing we’ve seen so far with 23 inverter models from Chint, Sungrow,……