ABB phase rail

(This text is machine translated) The ABB busbar PS3/12FI enables safe and economical cross-wiring of automatic circuit breakers, residual current protective devices and other modular installation devices. For a correct phase busbar selection, the following must be considered: terminal type (double terminal or cage terminal), number of poles of the devices (1, 2, 3, 4, 1+N or 3+N), device type (automatic circuit breakers, residual current devices or modular installation devices), combinations of the various device types, use of circuit breakers with auxiliary switches mounted on the right and bottom, phase busbar connection cross-section (current carrying capacity), number of modules (choice of standard busbars or busbars that can be shortened). Safety-relevant component, installation only by authorized specialists!