FeaturesEnlargeType GM-SG-AR Medium-Voltage Metal-Clad Arc-Resistant Switchgear (5 kV-15 kV)EnlargeIntegrated Pressure Relief Channel for SIMOVAC-AR Arc-Resistant MVC and GM-SG-AR Arc-Resistant MVS Shown Installed in a Power Equipment CenterEnlargeTransition Section SIMOVAC-AR Arc-Resistant MVC to GM-SG-AR Arc-Resistant MVS Shown Installed in a Power Equipment CenterRead how Siemens' new arc-resistant switchgear technology design resulted in smaller project footprint and lower overall cost for a National Grid substation project here.Read about how Siemens to provide all major electrical equipment for fuel efficient power plant in Michigan, including GM-SG-AR 63 kA switchgear here.Watch the brief overview of how the City of Holland collaborated with Siemens on Holland Energy Park here.Features include:Arc-resistant to IEEE C37.20.7, up to 63 kA, 0.5 sec, accessibility type 2BApplication flexible exhaust systemTop-mounted pressure relief channel factory-installed for reduced installation timeOne-high or two-high constructionUp to 100 full-fault interruptionsUniversal spare circuit breakerInterlocks permit insertion of higher rating vacuum circuit breaker into lower-rated cell but not vice-versaFront accessible circuit breaker operating mechanism for ease of maintenanceClosed door rackingFloor rollout circuit breaker in lower cell without a dollyVisible secondary disconnectCircuit breaker ships inside of cell, thus reducing installation cost and transit damageInstrumentation and controls located in a separate compartment isolated from all primary circuit elementsPair with Siemens protective relays to match any typical applicationSiemens Integrated Electric-Racking System (SIERS) is optionally available.Horizontal drawout type GMSG vacuum circuit breaker with type 3AH3 operating mechanismUses the latest developments in vacuum interrupter technologyHighly reliable vacuum interrupters - MTTF over 53,000 yearsCommon type 3AH3 operator platform for all ratingsOver 120,000 3AH3 operators produced since 199810,000 operations to overhaulThree-cycle interrupting time (optional)Meets or exceeds the latest ANSI, IEEE and NEMA standardsUL or C-UL Listing availableAvailable as indoor (GM-SG) and Shelter-Clad (SGM-SG-AR).