PTV disconnect terminal blocks and knife-disconnect terminal blocks

Disconnect and knife-disconnect terminal blocks

Particularly in testing and measurement technology, various terminal blocks are used which enable the easy manual disconnection of circuits. The knife-disconnect terminal blocks from Phoenix Contact have an easy-to-operate lever disconnect knife. The basic disconnect terminal blocks have a standardized disconnect zone for accommodating component connectors, fuse plugs, isolating plugs or feed-through connectors.

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Advantages

  • Convenient separation of circuits with lever-type disconnect knife, isolating plug, or rotary contact
  • User-friendly current measurement thanks to a testing facility on either side of the disconnect point
  • Safe operation as the disconnect lever is latched into place in the end positions
  • Clear identification of the disconnect point with color marking
  • Individual assembly with disconnect element, fuse plug, component connector, and feed-through connector
Knife-disconnect terminal block

Knife-disconnect terminal block

Knife-disconnect terminal block

Knife disconnect terminal blocks feature captive swiveling lever-type disconnect knives. These knives are operated with a standard screw driver, allowing circuits to be quickly disconnected and closed, for example for test purposes. Test points are integrated into the terminal points so that the tests can be carried out with connected conductors. The disconnect knives latch into clearly recognizable end positions so that they are not actuated accidentally. Optional switching locks are available to completely prevent the lever-type disconnect knives from being actuated.

Disconnect terminal blocks

Isolating plugs

Disconnect terminal blocks

Disconnect terminal blocks are usually feed-through, multi-conductor, or multi-level terminal blocks with an integrated disconnect zone. The disconnect zones are standardized and accommodate a range of function plugs. The inclusion of a function plug results in different types of function terminals. By including a fuse plug, the basic disconnect terminal block becomes a fuse terminal block. Thanks to a component connector, the terminal block becomes a component terminal block. With feed-through connectors and feed-through locks, the basic terminal block can be converted into a feed-through terminal block or a terminal block without feed-through. On the other hand, the isolating plugs that can be integrated, such as the lever disconnect knives of the knife disconnect terminal blocks, enable a quick changeover between the two switching states. This easy changeover enables, for example, the fast measurement of individual circuits. This means that the basic disconnect terminal block, with the aide of a removable plug, is the most versatile terminal block in a control cabinet.