UL 489B:2021 PDF Download
Standard EN Sample
Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures for Use with Photovoltaic (PV) Systems
Also Known As:
UL 489B:2021 is a standard that specifically addresses the requirements for molded-case circuit breakers, molded-case switches, and circuit-breaker enclosures used in photovoltaic (PV) systems. The standard applies to products rated up to 1500 V dc and provides guidelines for their safe and effective use.
The standard must be used in conjunction with other requirements outlined in Annex B, specifically Ref. No. 2, unless modified or supplemented by UL 489B:2021. This ensures that the products meet all necessary safety regulations and performance criteria for PV systems.
It's important to note that this standard does not cover molded-case circuit breakers or switches designed for use in battery circuits. These products fall outside the scope of UL 489B:2021.
| Edition | 1 |
| ICS Codes | 13.220 - Protection against fire |
| Language(s) | English |
| File Size | 368.6 KB |
