These components for wiring circuit breakers in industrial, commercial and private electrical distribution boards significantly reduce the installation effort. The pre-cut busbars of the Eurovario system are suitable for the supply-side connection of FI/LS combinations DRCBO 4 B+ and B on the underside of the devices. The rails are fork-shaped and available in two- and four-pole versions. The EV-S BS touch protection covers unused connections. Properties: Eurovario system phase rail in fork-shaped design with a fixed number of division units, these rails are not suitable for cutting to length, type of installation: The rails are plugged into the lower connection terminals of the devices to be connected. Areas of application: Busbars in this series are used for residual current circuit breakers with overcurrent protection (FI/LS combination) of the DRCBO 4 type B and B+ series in power supplies for residential and commercial buildings as well as industrial plants. Notes: Touch protection only when using touch protection caps 'EV-S BS' for unused connections. A higher current can be fed in with center feed. Maximum feed current Ie > rail current Is. See diagram.