Terminals for process control systems

Processes are becoming more and more complex. This increases the requirement of the control systems to handle more and more signals that need to be fused, separated, conditioned, and eventually switched. The most important requirement of an ideal solution is that signals as many as possible can be transmitted in a confined place. Weidmüller meets this requirement with its new terminals WMF and PRV/PPV.

PRV and PPV – PUSH IN Marshalling Terminal Blocks

Today’s control systems are increasingly more complex with higher and higher demands for the monitoring and capturing of operational data. These demands result an increasingly large number of field measuring devices. These trends pose new challenges to engineers. On one hand, the additional signals for the automation need to be connected and processed. On the other hand, extra space in associated with increased costs. These demands are met with Weidmüller’s new marshalling and distribution terminals. The PRV, with its PUSH IN wire connection, is the most compact marshalling terminal worldwide.

Safe installation

End stops built into the foot provide accurate and error free mounting on the rail.

Optimal orientation

Colour coding on the terminals provides for easy assignment of signals and clear understanding during extension work or maintenance.

PUSH IN connections

Unlike Wire-Wrap or TERMI-POINT connections the PUSH IN Wire connector guarantees protection against accidental short circuits.

Low contact resistance

The bus-bars unique V-shape allows for varying expansion of materials and ensures low contact resistances.

PPV power distribution terminal

For simple and safe potential distribution, the four level and eight level marshalling terminals are also available as potential distribution terminals.

WMF – Weidmüller Multi Functional

In process control systems for facilities in the process and power generation sectors, incoming signals from field devices are often connected with terminal blocks within marshalling cabinets. Terminal blocks are used despite the existence of alternative technologies such as Remote I/O and Fieldbus. This is mainly because they offer a robust and simple connection system, and are clearly arranged.Weidmüller’s new WMF (Weidmüller Multi-Functional) line of terminal blocks provides a multi-functional solution for routing and distributing signals. This space-saving terminal block combines all the necessary functionality into a single solution. It features an integrated shield connection and can be used with feed-through, fuse and disconnect functionality. The three cross-connection channels and wide variety of labelling options offer additional flexibility.

A solution to fit any scenario

Feed-through, fuse and disconnect functions, and even an integrated shield connection: all the required functions are combined together in this design.

Saves space in the switching cabinet

The 5-mm width allows for high-density wiring. The integrated shield/PE connection replaces the shield-connection devices or the PE terminal blocks.

Global reliability

Weidmüller’s proven screw-connection mechanism guarantees that the product will be easy to operate, recognize, and maintain anywhere throughout the world.

Fuse is convenient to replace

The new design of the fuse holder includes a hinged fuse carrier – this enables the fuse to be replaced quickly and reliably.

Routing distribution with Plug & Play

Instead of using a screw connection to contact each signal at the routing levels, pre-assembled cable sets with BLZ mating profiles are used. This saves you valuable wiring time in the field.