The Acti9 iC65N 1P C16A is a widely used MCB in residential settings. Its single - pole design makes it ideal for protecting individual circuits, such as lighting circuits. The C - type trip curve ensures that it trips quickly enough in case of overloads or short - circuits, safeguarding electrical appliances and preventing potential fire hazards. Its compact size and easy - to - install DIN rail mounting system make it a convenient choice for electricians during installation and maintenance work.