The Orbit SGM-1-MC is a single-gang, gangable, old-work electrical box. Its design allows for easy installation in existing walls and provides a secure enclosure for electrical connections. The "gangable" feature means multiple boxes can be joined together to create a multi-gang. GM-SG metal-clad switchgear maximizes space by stacking two breakers per section, delivering reliable power distribution up to 27 kV. Why GM-SG? GM-SG non-arc-resistant, air-insulated, metal-clad switchgear assemblies feature horizontal drawout GMSG. fore maintenance. Read and understand this instruction manual befor using equipment. Maintenance should be performed only by qu lified personnel. The use of unauthorized parts in the repair of the equipment or tampering by unqualified personnel will result in dangerous conditions that will cause. Page 1 Courtesy of NationalSwitchgear. Courtesy of NationalSwitchgear. Page 7 Courtesy of. A distribution box is a low-voltage electrical enclosure that receives incoming power and distributes it safely to multiple outgoing circuits through protective and switching devices such as MCBs, RCDs, RCBOs, fuses, isolators, busbars, neutral bars, earth bars, and surge protective devices. This electrical box is designed for use in existing walls or ceilings where new wiring is being installed without tearing out large sections. Our flexible distribution boxes enable reliable, decentralized signal transmission and power transmission up to protection class IP67 – wherever passive distribution boxes are required.