Powerpact B Frame Circuit Breakers Page 6 Table of Contents

PowerPact B-Frame 15 to 125 A Circuit Breakers Auxiliary and Alarm Indication Contacts ...........................................................36 Shunt Trip (MX) and Undervoltage Release (MN) .............................................38 Shunt Trip (MX)........................................................................................39 Undervoltage Release (MN) ......................................................................40 Time Delay Unit for Undervoltage Release .................................................41 Rotary Handles..............................................................................................42 Class 9421 Type L Door-Mounted Rotary Operators ...................................42 Class 9422 Cable Operating Mechanism....................................................43 Class 9422 Flange-Mounted Variable-Depth Operating Mechanism .............44 Direct Rotary Handles...............................................................................45 Extended Rotary Handles .........................................................................46 Side Rotary Handles.................................................................................48 Locks and Sealing Accessories.......................................................................50 Locks ......................................................................................................50 Interlocking of Circuit Breakers with Toggle Control .....................................50 Manual Mechanical Interlocking System.....................................................51 Sealing Accessories .................................................................................52 Operating and Installation Conditions .........................................................53 Environmental Conditions...............................................................................53 Shunt Trip (MX) and Undervoltage Release (MN) Wiring Rules..........................55 Temperature Considerations ...........................................................................56 Correction Factor......................................................................................56 Calculating Tripping Time..........................................................................57 Installation and Operating Conditions ..............................................................58 Installation in Equipment ...............................................................................59 Safety Clearances and Minimum Distances......................................................59 B-frame Safety Clearance, UL Standard ..........................................................60 B-Frame Safety Clearance, IEC Standard........................................................61 Circuit Breaker Enclosures, Enclosure Accessories (Available Late 2017) ............................................................................................................62 Dimensions ......................................................................................................63 Circuit Breaker Dimensions.............................................................................63 Connector Dimensions ...................................................................................64 Terminal Shield Dimensions............................................................................66 Interphase Barrier Dimensions........................................................................67 Insulation Screen Dimensions.........................................................................68 Backplate Dimensions....................................................................................69 DIN Rail Dimensions ......................................................................................70 Direct Rotary Handle Dimensions....................................................................71 Extended Rotary Handle.................................................................................72 Side Rotary Handle Dimensions......................................................................73 Door-Mounted Operating Mechanism ..............................................................74 NEMA 9422 Cable-Operating Mechanism........................................................75 NEMA 9422 Variable Depth Operating Mechanism ...........................................76 Wiring Diagrams .............................................................................................77 Indication Contacts.........................................................................................77 Remote Operation (MN/MX Voltage Release)...................................................77 6 0611CT1603

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