Circuit total limitation (CTL) is a legacy standard for electrical panels sold in the United States according to the National Electrical Code. This standard requires an electrical panel to provide a physical mechanism to prevent installing more circuit breakers than it was designed for.
Circuit total limitation (CTL) is a legacy standard for electrical panels sold in the United States according to the National Electrical Code. This standard requires an electrical panel to provide a physical mechanism to prevent installing more circuit breakers than it was designed for.
Source: Wikipedia "Circuit total limitation" · CC BY-SA 4.0
Share this article: X · Bluesky