ABB has launched a range of miniature circuit breakers (MCBs) aimed at OEMs, panelbuilders and the industrial sector. The System pro M compact incorporates a number of new features designed to eliminate wiring connection errors.
A key feature is the positioning of the cabling terminal in front of the busbar connection terminal, making both terminals easier to access and see. By placing both terminal ports at the bottom of the MCB, connections can be made secure by using only one screw to fasten both the busbar connection and the electrical cabling into their respective terminals.
ABB has also introduced auxiliary contacts for the pro M compact range, which can be added to the bottom of an MCB instead of the side. Saving up to 50% space in enclosures, this feature increases the number of auxiliary contacts which can be installed, expanding the number of remote monitoring options. Plug-in connectivity also makes the contacts simple to connect.
The pro M compact MCBs also offer a reduced height compared to ABB’s previous range, saving around 2cm of space per MCB.