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OC Motor Pool and Maintenance Shop <br />PDC Project 23017 Enclosed Circuit Breakers 26 28 16.13 - 1 <br />SECTION 26 28 16.13 <br />ENCLOSED CIRCUIT BREAKERS <br />PART 2 PRODUCTS <br />1.01 ENCLOSED CIRCUIT BREAKERS <br />A.Description: Units consisting of molded case circuit breakers individually mounted in enclosures. <br />B.Provide products listed,classified,and labeled as suitable for the purpose intended. <br />C.Unless otherwise indicated,provide products suitable for continuous operation under the following <br />service conditions: <br />1.Altitude: Less than 6,600 feet. <br />2.Ambient Temperature: Between 23 degrees F and 104 degrees F. <br />D.Short Circuit Current Rating: <br />E.Conductor Terminations: Suitable for use with the conductors to be installed. <br />F.Provide solidly bonded equipment ground bus in each enclosed circuit breaker,with a suitable lug <br />for terminating each equipment grounding conductor. <br />G.Enclosures: Comply with NEMA 250,and list and label as complying with UL 50 and UL 50E. <br />1.Environment Type per NEMA 250:Unless otherwise indicated,as specified for the following <br />installation locations: <br />H.Provide externally operable handle with means for locking in the OFF position. <br />1.02 MOLDED CASE CIRCUIT BREAKERS <br />A.Description: Quick-make,quick-break,over center toggle,trip-free,trip-indicating circuit breakers <br />listed and labeled as complying with UL 489,and complying with FS W-C-375 where applicable; <br />ratings,configurations,and features as indicated on the drawings. <br />B.Interrupting Capacity: <br />1.Provide circuit breakers with interrupting capacity as required to provide the short circuit <br />current rating indicated,but not less than: <br />2.Fully Rated Systems: Provide circuit breakers with interrupting capacity not less than the <br />short circuit current rating indicated. <br />C.Conductor Terminations: <br />1.Lug Material: Aluminum,suitable for terminating aluminum or copper conductors. <br />D.Multi-Pole Circuit Breakers: Furnish with common trip for all poles. <br />END OF SECTION 26 28 16.13 <br />Docusign Envelope ID: EF9C08D2-5B75-438B-8D6D-8473F81BD7C4