Topjob sensor/actuator DIN rail-mount terminal blocks can save up to 72% of the space on the rail compared to standard feed-through terminals. LEDs, jumpers and marking always are visible even when wired, making it easier to terminate and troubleshoot sensors and actuators. With these sensor terminal blocks, positive and negative potentials can be expanded endlessly using standard jumpers without pole number limitation. The terminal blocks also offer a high signal density with only 3.5-mm width per sensor.