UL 489F-2016 pdf download – Outline of Investigation for Molded-Case Circuit Breakers and Molded-Case Switches for Use with Battery Power Supplies.
8 Dielectric Voltage-Withstand Test 8.1 The BPS CIRCUIT BREAKER shall be subjected to the dielectric voltage-withstand test specified in UL 489, Section 7.1 .9. 9 High Available Fault Current Test 9.1 The BPS CIRCUIT BREAKER may be subjected to the high-available-fault-current tests specified in UL 489, Section 7.1 .1 1 . The interrupting capacity test specified in UL 489, Section 7.1 .1 1 .3.1 , shall be conducted at the nominal voltage rating specified in Table 7.1 . RATINGS 10 General 1 0.1 BPS CIRCUIT BREAKERS shall be rated for one of the nominal and maximum dc voltages indicated in Table 7.1 . MARKINGS 11 General 1 1 .1 In addition to the following requirements, a BPS CIRCUIT BREAKER shall be provided with all the applicable required markings specified in the marking sections of UL 489. 1 1 .2 The markings required in 1 1 .3 – 1 1 .6 shall be visible without disassembling or removing the device and shall be visible when the trim or cover of the enclosure is removed, and may be visible with the trim or cover in place. 1 1 .3 A BPS CIRCUIT BREAKER shall be marked with the nominal and maximum dc voltage rating. 1 1 .4 A BPS CIRCUIT BREAKER shall be marked with a wiring diagram indicating the proper connections of the poles in series. 1 1 .5 A BPS CIRCUIT BREAKER shall be marked to indicate it is intended for use on ungrounded systems only. 1 1 .6 A BPS CIRCUIT BREAKER shall be marked, ″For ______ A short circuit interrupting current at ______ V dc nominal ______ V dc maximum rating the circuit breaker is suitable only for use with battery power supplies″. The blank lines shall be filled in with the appropriate ratings from Table 7.1 , for each voltage rating as applicable. The words ″battery power supplies″ shall be permitted to be abbreviated ″BPS″.
12 General 1 2.1 The sample selection and performance tests shall be conducted as specified in UL 489, Section 1 1 .1 , except as modified in Sections 1 3, 1 4 and 1 5. 13 Overload Test 1 3.1 The BPS SWITCH shall be subjected to the overload test specified in UL 489, Section 1 1 .1 .3, at the maximum rated voltage specified in Table 7.1 . The number of operations and the test current of the overload test shall be in accordance with Table 5.1 .