UL 489B
Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures for Use with Photovoltaic (PV) Systems

DETAILS
Edition Number:1SCC Approved:--
Edition Date:2016-03-07DOD Approved: --
Price Code:AANSI Approved: 2016-03-07
Type:ulcsa

  • SCOPE

    1 Scope

    1.1 These requirements cover molded-case circuit breakers, molded-case switches, and circuit-breaker enclosures rated up to 1500 V dc, intended for use with photovoltaic (PV) systems and Ref. No. 1 of Annex B.

    1.2 These requirements are intended to be used in conjunction with the requirements in Ref. No. 2 of Annex B, except as modified or supplemented by this Standard.

    1.3 These requirements do not cover molded-case circuit breakers or molded-case switches intended for use in battery circuits.

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • UL Harmonized Standard Title Page
    • Table of Contents
      • Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures for Use with Photovoltaic (PV) Systems
        • ALL DEVICES
          • INTRODUCTION
          • 1 Scope
          • 2 Components
          • 3 Units of Measurement
          • 4 Normative References
          • 5 Definitions
        • PHOTOVOLTAIC (PV) MOLDED-CASE CIRCUIT BREAKERS
          • CONSTRUCTION
          • 6 General
          • 7 Spacings
          • 8 Wire Terminals
          • PERFORMANCE
          • 9 General
          • 10 Endurance Test
          • 11 Temperature Test
          • 12 100 Percent Calibration at 50°C
          • 13 Limited Fault Interrupting Test
          • 14 Standard Fault Interrupting Test
          • 15 Dielectric Voltage-Withstand Test
          • RATINGS
          • 16 General
          • MARKINGS
          • 17 General
        • PHOTOVOLTAIC (PV) MOLDED-CASE SWITCHES
          • CONSTRUCTION
          • 18 General
          • PERFORMANCE
          • 19 General
          • 20 Abnormal Current Opening Test
          • 21 Short Circuit Current Withstand Test
          • 22 Dielectric Voltage-Withstand Test
          • RATINGS
          • 23 General
          • MARKINGS
          • 24 General
        • PHOTOVOLTAIC (PV) CIRCUIT-BREAKER ENCLOSURE
          • CONSTRUCTION
          • 25 General
          • 26 Wiring Space
          • PERFORMANCE
          • 27 Short Circuit Current Test
          • RATINGS
          • 28 General
          • MARKINGS
          • 29 General
    • Annex A (Informative)
    • Annex B (Normative)
    • Annex C (Informative)French Translations and Markings