Features include:
Arc-resistant to IEEE C37.20.7, up to 50 kA, 0.5 sec, accessibility type 2B
Application flexible exhaust system
Top-mounted pressure relief channel factory-installed for reduced installation time
One-high or two-high construction
Up to 100 full-fault interruptions
Universal spare circuit breaker
Interlocks permit insertion of higher rating vacuum circuit breaker into lower-rated cell but not vice-versa
Front accessible circuit breaker operating mechanism for ease of maintenance
Closed door racking
Floor rollout circuit breaker in lower cell without a dolly
Visible secondary disconnect
Circuit breaker ships inside of cell, thus reducing installation cost and transit damage
Instrumentation and controls located in a separate compartment isolated from all primary circuit elements
Pair with Siemens protective relays to match any typical application
Horizontal drawout type GMSG vacuum circuit breaker with type 3AH3 operating mechanism
Uses the latest developments in vacuum interrupter technology
Highly reliable vacuum interrupters - MTTF over 57,000 years
Common type 3AH3 operator platform for all ratings
Over 60,000 3AH3 operators produced since 1998
10,000 operations to overhaul
Three-cycle interrupting time (optional)
Meets or exceeds the latest ANSI, IEEE and NEMA standards
UL or C-UL Listing available
Available as indoor (GM-SG) and Shelter-Clad (SGM-SG-AR).