• UL 1577 : 5

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    OPTICAL ISOLATORS

    Available format(s):  Hardcopy

    Superseded date:  13-11-2021

    Language(s): 

    Published date:  25-04-2014

    Publisher:  Underwriters Laboratories

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Glossary
    3 Units of measurement
    4 References
    Construction
    5 General
    6 Corrosion protection
    7 Insulating materials
    8 Live parts
    9 Spacings
    Performance
    10 General
    11 Dielectric voltage-withstand test
    12 Limited thermal aging test
    Double-protection optical isolators
    13 General
    14 Discharge test
    15 Optical isolator life test
    Manufacturing and production-line tests
    16 Dielectric voltage-withstand test
    Ratings
    17 General
    Markings
    18 General

    Abstract - (Show below) - (Hide below)

    Describes optical isolators, also called optical couplers or photocouplers: a) Intended to provide unidirectional signal transfer between dielectrically isolated circuits, and b) Intended for use in equipment with a supply voltage not exceeding 600 V ac rms or dc.

    General Product Information - (Show below) - (Hide below)

    Document Type Standard
    Publisher Underwriters Laboratories
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

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    UL 60730-1 : 5ED 2016-08 AUTOMATIC ELECTRICAL CONTROLS - PART 1: GENERAL REQUIREMENTS
    UL 60950-1 : 2 INFORMATION TECHNOLOGY EQUIPMENT - SAFETY - PART 1: GENERAL REQUIREMENTS
    UL 1993 : 5 SELF-BALLASTED LAMPS AND LAMP ADAPTERS
    UL 507 : 2010 ELECTRIC FANS
    UL 873 : 2012 TEMPERATURE-INDICATING AND REGULATING EQUIPMENT
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    CSA C22.2 No. 112 : 2015 ELECTRIC CLOTHES DRYERS
    UL 979 : 2 WATER TREATMENT APPLIANCES
    UL 2111 : 1 OVERHEATING PROTECTION FOR MOTORS
    UL 1559:5ED 2011-03 Insect-Control Equipment - Electrocution Type
    UL 458 : 6 POWER CONVERTERS/INVERTERS AND POWER CONVERTER/INVERTER SYSTEMS FOR LAND VEHICLES AND MARINE CRAFTS
    UL 858A : 3 SAFETY-RELATED SOLID-STATE CONTROLS FOR HOUSEHOLD ELECTRIC RANGES
    UL 1573 : 4 STAGE AND STUDIO LUMINAIRES AND CONNECTOR STRIPS
    UL 710B : 2 RECIRCULATING SYSTEMS
    CSA C22.2 No. 60335-1:2011 SAFETY OF HOUSEHOLD AND SIMILAR APPLIANCES - PART 1: GENERAL REQUIREMENTS
    UL 2108:2ED 2015-12 Low Voltage Lighting Systems
    UL 1042 : 5 ELECTRIC BASEBOARD HEATING EQUIPMENT
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    UL 1838 : 3 LOW VOLTAGE LANDSCAPE LIGHTING SYSTEMS
    UL 588:19ED 2015-10 Seasonal and Holiday Decorative Products
    UL 60065 : 8 AUDIO, VIDEO AND SIMILAR ELECTRONIC APPARATUS - SAFETY REQUIREMENTS
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    UL 2595 : 2ED 2015 GENERAL REQUIREMENTS FOR BATTERY-POWERED APPLIANCES
    UL 586:9ED 2009-08 High-Efficiency, Particulate, Air Filter Units
    UL 2271 : 2 BATTERIES FOR USE IN LIGHT ELECTRIC VEHICLE (LEV) APPLICATIONS
    UL 1018 : 6 ELECTRIC AQUARIUM EQUIPMENT
    UL 1778:5ED 2014-06 Uninterruptible Power Systems
    UL 283 : 3 AIR FRESHENERS AND DEODORIZERS
    UL 1012 : 8 POWER UNITS OTHER THAN CLASS 2
    UL 2021 : 4 FIXED AND LOCATION-DEDICATED ELECTRIC ROOM HEATERS
    UL 749 : 2017 HOUSEHOLD DISHWASHERS
    CAN/CSA-C22.2 NO. 60335-1:11 (R2016) Safety of household and similar appliances - Part 1: General requirements (Tri-national standard, with NMX-J-521/1-ANCE and UL 60335-1)
    UL 2735 : 2 ELECTRIC UTILITY METERS
    UL 60335-1 : 6ED 2016-10 SAFETY OF HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - PART 1: GENERAL REQUIREMENTS
    UL 1449 : 4 SURGE PROTECTIVE DEVICES
    UL 1973 : 2 BATTERIES FOR USE IN STATIONARY, VEHICLE AUXILIARY POWER AND LIGHT ELECTRIC RAIL (LER) APPLICATIONS
    UL 1017 : 2010 VACUUM CLEANERS, BLOWER CLEANERS, AND HOUSEHOLD FLOOR FINISHING MACHINES
    CSA C22.2 No. 167 : 2017 HOUSEHOLD DISHWASHERS
    CSA C22.2 No. 0.23 : 2015 GENERAL REQUIREMENTS FOR BATTERY-POWERED APPLIANCES
    UL 1447 : 6 ELECTRIC LAWN MOWERS
    UL 82:9ED 2017-08 Electric Gardening Appliances
    UL 541 : 9ED 2016 REFRIGERATED VENDING MACHINES
    UL 1971 : 3 SIGNALING DEVICES FOR THE HEARING IMPAIRED
    UL 508 :18ED 2018 INDUSTRIAL CONTROL EQUIPMENT
    UL 1090 : 7 ELECTRIC SNOW MOVERS
    UL 8750 : 2 LIGHT EMITTING DIODE (LED) EQUIPMENT FOR USE IN LIGHTING PRODUCTS
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    Standards Referencing This Book - (Show below) - (Hide below)

    UL 746C : 6 POLYMERIC MATERIALS - USE IN ELECTRICAL EQUIPMENT EVALUATIONS
    UL 746B : 4 POLYMERIC MATERIALS - LONG TERM PROPERTY EVALUATIONS
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