Photovoltaic panel product label information

Do PV systems need labels and warning signs?

Installers should consult the National Electricians Code (NEC) regarding PV systems and any local regulations from cities and municipalities. The basic parts of a PV system that need labels and warning signs include the following: Now that we know what needs labeling, we’ll explore the PV labeling requirements that installers need to know.

Why are labeling requirements important for PV systems?

Before we get into the labeling requirements for PV systems, it’s worth noting why these labels are important for installers and owners of PV systems. There’s always the danger of short circuits, arc flashes, and fires to installers and anyone nearby if they’re not careful.

What does a permanent label on a PV module mean?

permanent label at the PV disconn ng meansRated maximum power point rent. Rated maximum r point voltage. Maxi rent is the lower of the following 2 values: The total STC DC power rating for all PV Modules divided by the nominal string voltage value listed in

How do I communicate the labeling requirements to the installer?

Communicating the labeling requirements to the installer must be clear, concise and adhere to the latest National Electrical Code (NEC) and International Fire Code (IFC) requirements for text height, wording and reflectivity (where required).

What is a'rent' for a PV module?

rent is the lower of the following 2 values: The total STC DC power rating for all PV Modules divided by the nominal string voltage value listed in m (2) below for maximum power point voltage. For example, a system with 28 – 260 watt PV Modules with the SE6000H-US inverter connected to a 240 Vac single phase grid connection would

Why do I need a voltage label?

This is required for safety purposes to clearly indicate the maximum voltage to servicing personnel for PPE and tool selection. Since some PV equipment, such as certain inverters, may have multiple DC circuit inputs, the highest value present in the system shall be used on the single label.