GM-SG-AR arc-resistant, air-insulated switchgear

Why GM-SG-AR?

Our GM-SG-AR arc-resistant, air-insulated, metal-clad switchgear provides reliable protection and switching for medium-voltage power circuits. Use it in industrial plants, commercial buildings, electric utility systems and cogeneration installations.

Arc-flash incidents pose a significant risk to personnel in electrical systems. Our GM-SG-AR switchgear solves this with an arc-resistant design, tested to IEEE C37.20.7, providing enhanced protection for your team. Reduce the need for extensive personal protective equipment for a safer operational environment.

GM-SG-AR switchgear is available as:

Indoor (type GM-SG-AR)
Outdoor walk-in Shelter-Clad NEMA 3R (type SGM-SG-AR)
Outdoor walk-in Shelter-Clad+ factory-assembled switchgear (type S+GM-SG-AR).

Key benefits

Minimize risks

Enable optional Sm@rtGear functionality and gain predictive diagnostics, continuous monitoring, and control from a remote location.

Optimize space

Achieve a smaller project footprint with our compact switchgear design. Our innovative two-high construction maximizes space utilization.

Simplify operation

Streamline your daily operations and maintenance with user-friendly features like front-accessible mechanisms and optional remote monitoring.

Featured capabilities

Siemens Type GMSG Circuit Breaker with a handle and a switch.

Robust protection

We test this arc-resistant switchgear to IEEE C37.20.7 for accessibility type 2B. It provides added protection during an internal arcing fault for nearby personnel, improving workplace safety.

A diagram of a vacuum interrupter with a key visual representation of its components.

Vacuum interrupters

As the centerpiece of our medium-voltage products, this hermetically sealed vacuum contact gap keeps the switching characteristics of the interrupters constant throughout their entire lifecycle

A hand holds a Siemens remote control pendant with red "CONNECT", white "TEST", green "DISCONNECT", and yellow "ALARM" buttons, near electrical equipment.

Remote electrical-racking system

Implement the Siemens Integrated Electric-Racking System (SIERS) for remote operation of GMSG drawout circuit breakers. Rack breakers safely from outside the arc-flash zone for enhanced protection.