Masterpact® NW Power Circuit Breaker with DC
Contents
1. Where do you use DC rated Masterpact NW circuit breakers E Industrial panel builders Control panels for emergency DC power Control of UPS uninterruptible power supplies E Facilities and infrastructures Emergency DC power for substation controls Protection and control of DC motors a brand of Schneider Electric Masterpact NW Power Circuit Breaker with DC Ratings SS Turn It On broad protection and proven reliability The Square D Masterpact NW DC power circuit breakers the latest addition to the Masterpact product family now offer a broad range of protection for DC systems These ratings qualify the Masterpact NW breaker for use on critical DC power applications such as battery UPS systems transit applications and DC backup systems in power plants and substations With the proven reliability and performance of the Masterpact family the NW DC breakers are tested to meet UL 489 Supplement SC and IEC 60947 2 for DC circuit breakers What can DC rated Masterpact NW Circuit Breakers do for you E Easy to operate ease of set up and configuration proven Masterpact track record E Flexible installation options available in both fixed and drawout construction circuit breaker or switch options will fit all applications E Lower installation costs offers the smallest footprint in the industry factory tested and calibrated to reduce installation time E Proven reliab2. er manual document number 48049 557 01 For technical support please call 888 SQUARED Schneider Electric North American Operating Division 1415 S Roselle Road Palatine IL 60067 Tel 847 937 2600 Fax 847 925 7500 www us squared com Order Number 8000HO0621 06 06 2006 Schneider Electric All rights reserved tk
3. ility long service life with little or no maintenance Masterpact reputation as number one choice in critical applications E Complete product offering easy to select standard rating performance and accessories for any application for ungrounded UPS 800 to 4000 A 600 VDC floating and 500 VDC loaded for all DC systems 1000 to 4000 A 500 750 and 900 VDC Masterpact NW Power Circuit Breaker with DC Ratings Product Specifications m UL 489 Supplement SC Frame sizes and interrupting ratings Interrupting Ratings for UL 489 Listed Masterpact NW Circuit Breakers Model Number Circuit Breaker Endurance Rating C O cycles Breaking Capacity Breaking Time Closing Time Type C Rating with no maintenance 500 VDC max 600 VDC NWO8NDC 800 A NW12NDC 1200 A 10 000 2800 NW16NDC 1600 A NW20NDC 2000 A 10 000 1000 35 kA 30 to 75 ms lt 0 ms NW25NDC 2500 A 10 000 1000 NW30NDC 3000 A NW40NDC 4000 A 10 000 1000 1 This circuit breaker is only suitable for use on ungrounded UPS systems as stipulated in UL 489 standard supplement SC SC 11 4 and SC11 5 For more information Visit our Web site at http www us squared com for more information on Masterpact NW DC power circuit breakers The following literature is available from your authorized Square D distributor or Schneider Electric sales office E Masterpact NW DC Circuit Breakers catalog document number 0613C T0501 E Masterpact NW DC UL489 Supplement SC us
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