Block pm 0724 400 1 din rail circuit breaker output 24v 4x 2 10a block pm 0724 400 1 p the block pm 0724 400 1 is a din rail circuit breaker that distributes and monitors the load current over several current circuits overloads and short circuits on an output are reliably recognised p p the electronics permit brief current peaks and switch longer overloads off the rated current for each output can be individually set with a current selector switch accessible from the front the outputs