1. © Siemens Industry, Inc. 2012. All rights reserved. New QR Molded Case Circuit Breaker

2. © Siemens Industry, Inc. 2012. All rights reserved  Features & Benefits  Catalog Number Structure  Applications  More Information Contents © Siemens Industry, Inc. 2012

3. © Siemens Industry, Inc. 2012. All rights reserved  Features & Benefits  Catalog Number Structure  Applications  More Information Contents © Siemens Industry, Inc. 2012

4. Low Voltage Distribution © Siemens Industry, Inc. 2012 Features & Benefits The New Siemens QR Circuit Breaker Replacement for the QJ breaker family It is a form, fit and function replacement for the QJ breaker * * Toggle handle moved to the center of 3-pole breaker

5. Low Voltage Distribution © Siemens Industry, Inc. 2012 Features & Benefits Page 5 Design Enhancements Trip Unit Ratings from 100A to 250A Field Installable internal accessories – Shunt trip, aux switch or shunt/aux combo Two accessory pockets in 3-pole breakers. One accessory pocket in 2-pole breakers High in-rush current capability (450%) Push-to-trip button

6. Low Voltage Distribution © Siemens Industry, Inc. 2012  Features & Benefits  Catalog Number Structure  Applications  More Information Contents © Siemens Industry, Inc. 2012

7. Low Voltage Distribution © Siemens Industry, Inc. 2012 QR Breaker Catalog Number Structure QR2 Breaker -- 10KAIC @ 240VAC Ampere 2 Pole 3 Pole 100QR22B100QR23B100 125QR22B125QR23B125 150QR22B150QR23B150 175QR22B175QR23B175 200QR22B200QR23B200 225QR22B225QR23B225 250QR22B250QR23B250 QRH2 Breaker -- 25KAIC @ 240VAC Ampere 2 Pole 3 Pole 100QRH22B100QRH23B100 125QRH22B125QRH23B125 150QRH22B150QRH23B150 175QRH22B175QRH23B175 200QRH22B200QRH23B200 225QRH22B225QRH23B225 250QRH22B250QRH23B250 HQR2 Breaker -- 65KAIC @ 240VAC Ampere 2 Pole 3 Pole 100HQR22B100HQR23B100 125HQR22B125HQR23B125 150HQR22B150HQR23B150 175HQR22B175HQR23B175 200HQR22B200HQR23B200 225HQR22B225HQR23B225 250HQR22B250HQR23B250 HQR2H Breaker -- 100KAIC @ 240VAC Ampere 2 Pole 3 Pole 100HQR22B100HHQR23B100H 125HQR22B125HHQR23B125H 150HQR22B150HHQR23B150H 175HQR22B175HHQR23B175H 200HQR22B200HHQR23B200H 225HQR22B225HHQR23B225H 250HQR22B250HHQR23B250H * Load lugs standard. If both line and load side lugs are needed, add “L” to the end of the catalog number.

8. Low Voltage Distribution © Siemens Industry, Inc. 2012  Features & Benefits  Catalog Number Structure  Applications  More Information Contents © Siemens Industry, Inc. 2012

9. Low Voltage Distribution © Siemens Industry, Inc. 2012 Applications Same form-factor/mounting as QJ for easy retrofit Field-installable internal accessories for reduced inventory, modularity, and speed High in-rush capability for elevator applications Stretch frame to 250A 250A 60-Circuit panel potential (E-car charging) 250A, 240V Panelboard capability – replace FD main

10. Low Voltage Distribution © Siemens Industry, Inc. 2012  Features & Benefits  Catalog Number Structure  Applications  More Information Contents © Siemens Industry, Inc. 2012

11. Low Voltage Distribution © Siemens Industry, Inc. 2012 Page 11 More Information Internal Accessories can be installed in the field in 3-pole as well as 2-pole QR breakers

12. Low Voltage Distribution © Siemens Industry, Inc. 2012 Page 12 More Information Handle Blocking Device Handle Padlocking Device Slide Bar Interlocking Device

13. Low Voltage Distribution © Siemens Industry, Inc. 2012 Page 13 More Information Aluminum Lugs (standard) Copper Lugs (optional) Compression Lugs (optional)

14. Low Voltage Distribution © Siemens Industry, Inc. 2012 Page 14 QR Enclosures Available in multiple protection versions QR2N1S - NEMA 1 Surface QR2N1F - NEMA 1 Flush QR2N3R - NEMA 3R QR2N12 - NEMA 12 QR2N4X - NEMA 4X (304 Stainless Steel) QR2N4X316 - NEMA 4X (316 Stainless Steel)

15. Low Voltage Distribution © Siemens Industry, Inc. 2012 Page 15 Thank you for your attention! © Siemens Industry, Inc. 2012. All rights reserved.