North American distribution boards are generally housed in sheet metal enclosures, with the circuit breakers positioned in two columns operable from the front. Some … 詳細

Despite the adoption of a standard DIN rail for mounting and a standard cut-out shape for seemingly interchangeable breakers, the positions of busbar … 詳細

For reasons of aesthetics and security, domestic circuit breaker panels and consumer units are normally located in out-of-the-way 詳細

• Circuit total limitation
• Consumer unit
• Electric switchboard
• Electricity meter
• Electrical busbar system 詳細

This picture shows the interior of a typical distribution panel in the United Kingdom. The three incoming phase wires connect to the busbars via a main switch in the centre of the panel. On each side of the panel are two busbars, for neutral and earth. The incoming … 詳細

In a theatre, a specialty panel known as a dimmer rack is used to feed stage lighting instruments. A U.S. style dimmer rack has a 208Y/120 volt 3-phase feed. Instead of just circuit breakers, the … 詳細