UL SUBJECT 489B-2013 Outline of Investigation for Molded-Case Circuit Breakers@ Molded-Case Switches@ and Circuit-Breaker Enclosures for Use with Photovoltaic (PV) Systems (Issue 3)
These requirements cover molded-case circuit breakers@ molded-case switches@ and circuit-breaker enclosures rated up to 1000 V dc@ intended for use with photovoltaic (PV) systems and Article 690 of the National Electrical Code@ ANSI/NFPA-70. These requirements are intended to be used in conjunction with the requirements in the Standard for Molded-Case Circuit Breakers@ Molded-Case Switches and Circuit-Breaker Enclosures@ UL 489@ hereafter referred to as UL 489@ except as modified or supplemented by this Outline.
UL SUBJECT 489B-2013 history
2015UL Subject 489B-2015 Outline of Investigation for Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures for Use with Photovoltaic (PV) Systems (CSDS Proposal, 11/6/2015)
2014UL SUBJECT 489B-2014 UL Outline of Investigation for Molded-Case Circuit Breakers@ Molded-Case Switches@ and Circuit-Breaker Enclosures for Use with Photovoltaic (PV) Systems (Issue 4)
2013UL SUBJECT 489B-2013 Outline of Investigation for Molded-Case Circuit Breakers@ Molded-Case Switches@ and Circuit-Breaker Enclosures for Use with Photovoltaic (PV) Systems (Issue 3)
2012UL SUBJECT 489B-2012 OUTLINE OF INVESTIGATION FOR MOLDED-CASE CIRCUIT BREAKERS@ MOLDED-CASE SWITCHES@ AND CIRCUIT-BREAKER ENCLOSURES FOR USE WITH PHOTOVOLTAIC (PV) SYSTEMS (Issue 2)
2010UL SUBJECT 489B-2010 OUTLINE OF INVESTIGATION FOR MOLDED-CASE CIRCUIT BREAKERS@ MOLDED-CASE SWITCHES@ AND CIRCUIT-BREAKER ENCLOSURES FOR USE WITH PHOTOVOLTAIC (PV) SYSTEMS (Issue No. 1)