Medium Voltage Replacement Circuit Breakers Ratings from 5–38 kV, 250–1500 MVA, 1200-3000 Amperes Replacement breakers provide a costeffective way to upgrade your system capabilities while saving you from costly maintenance and lost productivity while preserving your investment in existing cubicles and cables. Why Siemens? Siemens Offers the Best Vacuum Circuit Breaker in the Industry. Whether your equipment was originally manufactured by Allis-Chalmers, Westinghouse, GE, Federal Pacific, ITE, or another manufacturer, we will assist you to evaluate the Siemens replacement options which best meet your needs. Why Replacement Breakers? 5-MSV (Replacement for Allis-Chalmers MA) Increased Reliability and Performance Reduced Operating and Maintenance Expenditures Reduced Downtime, Minimal Changeover Time During Upgrade Preserved Investment in Existing Cubicles Improved Employee and Environmental Safety Superior Performance, Longer Service Life 10,000 full load operation, 10-year maintenance cycle on replacement circuit breakers with 3AH operator Standard Operator on All Siemens Replacement, Medium Voltage Distribution, and Outdoor Vacuum Circuit Breakers Reduced part count and inventory Minimized maintenance training required Extensive Replacement Breaker Experience – 750+ projects since 1983 Over 300,0000 3AF/H series circuit breakers in service worldwide Nuclear 1E Rated (350+ breakers) Design, Production Testing per ANSI, IEEE Full Range of Service Capabilities by Skilled Factory-Trained Engineers 3AH Operator Features: Power Transmission & Distribution Spring charge motor mechanism lifetime lubricated gear box Operating linkage machine parts vs. stamped metal Change-out of components easily accessible Vacuum contact erosion indication easily verifiable Siemens Medium Voltage Replacement Circuit Breakers The following circuit breakers are available as pre-engineered designs. Other manufacturers, models, and ratings can be engineered by Siemens. HKR Breaker (Replacement for ITE HK) Manufacturer Model kV Ratings MVA AMP Allis-Chalmers (All Air-Magnetic) AM 4.76 MB/MBV 8.25 MC/MCV 15 MA 4.76 FA FB FC/FCV 4.76 8.25 15 3AF (2-High) 4.76 150 250 250 500 150 250 500 250 350 350 500 500 750 1000 250 350 500 500 750 1000 250 100 150 100 150 250 350 500 250 500 750 1000 150 250 350 500 500 750 1000 350 500 500 750, 750C 1000 100 150 250 500 500 750 1000 250 500 500 750 1000 501 502 751 1200, 2000 1200, 2000 1200, 2000 1200, 2000 1200 1200, 2000 1200, 2000 1200, 2000 1200, 2000 3000 1200, 2000, 3000 1200, 2000 1200, 2000, 3000 1200, 2000, 3000 1200, 2000 1200, 2000, 3000 1200, 2000, 3000 1200, 2000 1200, 2000 1200, 2000, 3000 600, 1200, 2000 600, 1200, 2000 600, 1200, 2000 600, 1200, 2000 600, 1200, 2000 600, 1200, 2000 1200, 2000, 3000 1200, 2000, 3000 1200, 2000 1200, 2000 1200, 2000 1200, 2000, 3000 1200, 2000 1200, 2000 3000 1200, 2000 1200, 2000 1200, 2000 1200, 2000, 3000 1200, 2000 1200, 2000 1200, 2000 1200, 2000 1200, 2000 600, 1200 600, 1200 600, 1200 1200, 2000 1200, 2000 1200, 2000 1200, 2000 1200, 2000 1200, 2000 1200, 2000 1200, 2000 1200 1200 2000 1200 Siemens 8.25 15 GE (All Air-Magnetic) Magneblast (AMH) 4.76 Magneblast (AM) 2.4 4.76 8.25 15 DHR Breaker (Replacement for Westinghouse DH) Westinghouse DH 4.76 8.25 15 DHP 4.76 8.25 15 HV 4.76 HK 8.25 15 Federal Pacific DST2 4.76 8.25 15 McGraw Edison MOP PSD 27 15 GER Breaker (Replacement for GE Magneblast) ITE Contact Us To find out more about Siemens replacement breakers, please contact your local Siemens representative or (800) 347-6659 regarding your site specific application. Siemens Power Transmission & Distribution, Inc. Service Solutions Division 7000 Siemens Road Wendell, NC 27591 www.usa.siemens.com/energy © 2006 Siemens Power Transmission & Distribution, Inc. All rights reserved. E50001-U610-A106-X-US00 Subject to change without notice. All statements, technical information and recommendations contained herein are based on information and tests we believe to be reliable. The accuracy or completeness hereof is not guaranteed. Since conditions of use are outside our control, the user should determine the suitability of the product for its intended use and assumes all risk and liability whatsoever in connection herewith.