Sensor packs twice the signal density into a 7mm footprint

16th July 2018
Lanna Cooper


A sensor terminal block from WAGO fits double the signal density into a smaller space on the DIN rail while reducing cabling requirements. Two signals can be connected to each 7mm wide TOPJOB S sensor terminal block, providing a 3.5mm signal density in a more robust housing.

It saves money and installation time by using push-in jumpers rather than wires for commoning power across to each block in an assembly, rather than having to feed live and neutral wires separately into each one.

Push-In CAGE CLAMP spring pressure connection eliminates the risk of loose or faulty wiring, making TOPJOB S suitable for connecting sensors in areas subject to frequent vibration such as in heavy industrial environments.

A supply terminal block ensures that live, earth and neutral only need to be fed into an assembly once, as the power supply can be commoned across to other terminal blocks using standard jumpers. These are available in a range of pole configurations for added flexibility, while colour-coding simplifies assignment of potentials.

Consequently installers can save a large amount of time and money by reducing the amount of wiring used in an installation. At effectively 3.5mm per sensor connection, more signals can be connected within a smaller space, making the TOPJOB S sensor terminal suitable for confined control cabinets.

The terminal blocks feature several potential levels and one signal level. The potential levels are for power supply and, if necessary, sensor grounding or shielding. The signal level is for through signal transmission from the sensors. A single terminal block housing accommodates two interconnected potential terminals with double spacing on the lower levels, and two independent signal pathways with single spacing on the upper levels. Space is provided within the terminal block for engineers to install a PCB, for instance to facilitate LED voltage indicators.

The structure of the terminal block ensures that jumpers, wiring and LEDs (if applicable) are always visible, while the marking system is one of the fastest on the market. The blocks can be marked on the top and the side, while a snap-on marker carrier is available to allow marking to be retrofitted after the assembly has been installed.

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