1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULJANUARY 12, 20161UL 489FOutline of Investigation for Molded-Case Circuit Breakers and Molded-CaseSwitches for Use with Battery Power SuppliesIssue Number: 2January 12, 2016Summary of TopicsThe Se
2、cond issue of the Outline of Investigation for Molded-Case CircuitBreakers and Molded-Case Switches for Use with Battery Power Supplies,UL 489F, is being issued to clarify the ratings for these devices and clarifythe test requirements for BPS switches.ULs Outlines of Investigation are copyrighted by
3、 UL. Neither a printed norelectronic copy of an Outline of Investigation should be altered in any way. All ofULs Outlines of Investigation and all copyrights, ownerships, and rights regardingthose Outlines of Investigation shall remain the sole and exclusive property of UL.COPYRIGHT 2016 UNDERWRITER
4、S LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULJANUARY 12, 2016UL 489F2No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope
5、 .42 General 42.1 Components .42.2 Units of measurement .52.3 Undated references .52.4 Glossary 5MOLDED-CASE CIRCUIT BREAKERSPERFORMANCE3 General 54 Calibration Test .55 Overload Test 56 Endurance Test .67 Interrupting Test 68 Dielectric Voltage-Withstand Test .79 High Available Fault Current Test .
6、7RATINGS10 General .7MARKINGS11 General .7MOLDED CASE SWITCHESPERFORMANCE12 General .813 Overload Test .814 Endurance Test 815 Withstand Test 8RATINGS16 General .8MARKINGS17 General .8JANUARY 12, 2016 UL 489F 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PER
7、MISSION FROM ULINTRODUCTION1 Scope1.1 These requirements cover molded-case circuit breakers and molded-case switches rated greater than250 V dc but no greater than 1500 V dc and intended for use with battery power supplies (BPS) whichmay be wired with multiple poles in series, such as may be used in
8、 uninterruptible power supplies or forenergy storage in renewable energy systems. These devices are intended for use in accordance with theNational Electrical Code (NEC), ANSI/NFPA 70.1.2 A circuit breaker intended for use with battery power supplies shall comply with the applicablerequirements in t
9、he Standard for Molded-Case Circuit Breakers, Molded-Case Switches andCircuit-Breaker Enclosures, UL 489, hereafter referred to as UL 489, except as modified or supplementedby this Outline.1.3 These requirements do not cover circuit breakers rated 250 V dc or less.2 General2.1 Components2.1.1 Except
10、 as indicated in 2.1.2, a component of a product covered by this Outline shall comply withthe requirements for that component.2.1.2 A component is not required to comply with a specific requirement that:a) Involves a feature or characteristic not required in the application of the component in thepr
11、oduct covered by this Outline; orb) Is superseded by a requirement in this Outline.2.1.3 A component shall be used in accordance with its rating established for the intended conditions ofuse.2.1.4 Specific components are incomplete in construction features or restricted in performancecapabilities. S
12、uch components are intended for use only under limited conditions, such as certaintemperatures not exceeding specified limits, and shall be used only under those specific conditions.JANUARY 12, 2016UL 489F4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISS
13、ION FROM UL2.2 Units of measurement2.2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate information.2.3 Undated references2.3.1 Any undated reference to a code or standard appearing in the requirements of this Outline shall beinterpreted as
14、 referring to the latest edition of that code or standard.2.4 Glossary2.4.1 For the purpose of this Outline, the following definitions apply.2.4.2 BPS CIRCUIT BREAKER a molded-case circuit breaker intended for use in BPS systems rated greaterthan 250 V dc, but not greater than 1500 V dc.2.4.3 BPS SW
15、ITCH a molded-case switch intended for use in BPS systems rated greater than 250 V dc,but not greater than 1500 V dc.MOLDED-CASE CIRCUIT BREAKERSPERFORMANCE3 General3.1 The sample selection and performance test sequences shall be conducted as specified in UL 489,Section 7.1.4 Calibration Test4.1 The
16、 BPS CIRCUIT BREAKER shall be subjected to all of the applicable calibration and recalibration tests,including the adjustable instantaneous response calibration test specified in UL 489, Section 7.1.2.5.1.5 Overload Test5.1 The BPS CIRCUIT BREAKER shall be subjected to the overload test specified in
17、 UL 489, Section 7.1.3, atthe maximum rated voltage specified in Table 7.1. The number of operations and the test current of theoverload test shall be in accordance with Table 5.1.JANUARY 12, 2016 UL 489F 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISS
18、ION FROM ULTable 5.1Overload testCircuit breaker rating, amperes No. of cycles Percent of rated current249 and less 50 200250 6000 25 2006 Endurance Test6.1 The BPS CIRCUIT BREAKER shall be subjected to the endurance test specified in UL 489, Section 7.1.5, atthe maximum rated voltage specified in T
19、able 7.1. The number of operations of the endurance test shallbe in accordance with Table 6.1.Table 6.1Endurance testCircuit breaker rating, amperes Cycles of operationWith load Without load249 and less 1000 1000250 6000 400 4007 Interrupting Test7.1 The BPS CIRCUIT BREAKER shall be subjected to the
20、 interrupting tests specified in UL 489, Section 7.1.7,at the nominal rated voltage specified in Table 7.1. The test currents are to be selected from theCommon column in UL 489, Table 7.1.7.2. The sequence for these tests shall be OCOO.Table 7.1Voltage rating, volts DCLevel Nominal Maximum1 384 5002
21、 500 6003 600 7504 800 10005 1250 1500JANUARY 12, 2016UL 489F6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL8 Dielectric Voltage-Withstand Test8.1 The BPS CIRCUIT BREAKER shall be subjected to the dielectric voltage-withstand test specified
22、in UL 489,Section 7.1.9.9 High Available Fault Current Test9.1 The BPS CIRCUIT BREAKER may be subjected to the high-available-fault-current tests specified in UL 489,Section 7.1.11. The interrupting capacity test specified in UL 489, Section 7.1.11.3.1, shall be conductedat the nominal voltage ratin
23、g specified in Table 7.1.RATINGS10 General10.1 BPS CIRCUIT BREAKERS shall be rated for one of the nominal and maximum dc voltages indicated in Table7.1.MARKINGS11 General11.1 In addition to the following requirements, a BPS CIRCUIT BREAKER shall be provided with all the applicablerequired markings s
24、pecified in the marking sections of UL 489.11.2 The markings required in 11.3 11.6 shall be visible without disassembling or removing the deviceand shall be visible when the trim or cover of the enclosure is removed, and may be visible with the trimor cover in place.11.3 A BPS CIRCUIT BREAKER shall
25、be marked with the nominal and maximum dc voltage rating.11.4 A BPS CIRCUIT BREAKER shall be marked with a wiring diagram indicating the proper connections of thepoles in series.11.5 A BPS CIRCUIT BREAKER shall be marked to indicate it is intended for use on ungrounded systems only.11.6 A BPS CIRCUI
26、T BREAKER shall be marked, For _ A short circuit interrupting current at _ Vdc nominal _ V dc maximum rating the circuit breaker is suitable only for use with battery powersupplies. The blank lines shall be filled in with the appropriate ratings from Table 7.1, for each voltagerating as applicable.
27、The words battery power supplies shall be permitted to be abbreviated BPS.JANUARY 12, 2016 UL 489F 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULMOLDED CASE SWITCHESPERFORMANCE12 General12.1 The sample selection and performance tests shall
28、be conducted as specified in UL 489, Section11.1, except as modified in Sections 13, 14 and 15.13 Overload Test13.1 The BPS SWITCH shall be subjected to the overload test specified in UL 489, Section 11.1.3, at themaximum rated voltage specified in Table 7.1. The number of operations and the test cu
29、rrent of theoverload test shall be in accordance with Table 5.1.14 Endurance Test14.1 The BPS SWITCH shall be subjected to the endurance test specified in UL 489, Section 11.1.4, at themaximum rated voltage specified in Table 7.1. The number of operations of the endurance test shall bein accordance
30、with Table 6.1.15 Withstand Test15.1 The BPS SWITCH shall be subjected to the withstand tests specified in UL 489, Section 11.1.7, at themaximum rated voltage specified in Table 7.1.RATINGS16 General16.1 BPS SWITCHES shall be rated for one of the nominal and maximum dc voltages indicated in Table 7.
31、1.MARKINGS17 General17.1 In addition to the following requirements, a BPS SWITCH shall be provided with all the applicablerequired markings specified in the marking sections of UL 489.17.2 The markings required in 17.3 17.6 shall be visible without disassembling or removing the deviceand shall be vi
32、sible when the trim or cover of the enclosure is removed, and may be visible with the trimor cover in place.17.3 A BPS SWITCH shall be marked with the nominal and maximum dc voltage rating.17.4 A BPS SWITCH shall be marked with a wiring diagram indicating the proper connections of the poles inseries
33、.JANUARY 12, 2016UL 489F8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL17.5 A BPS SWITCH shall be marked to indicate it is intended for use on ungrounded systems only.17.6 A BPS SWITCH shall be marked, For _ A short circuit current at _ V dc
34、 nominal _ Vdc maximum rating the switch is suitable only for use with battery power supplies. The blank lines shallbe filled in with the appropriate ratings from Table 7.1, for each voltage rating as applicable. The wordsbattery power supplies shall be permitted to be abbreviated BPS.JANUARY 12, 2016 UL 489F 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULJANUARY 12, 2016UL 489F10No Text on This Page
