Page 47 - 2020 Interconnect Innovations eBook

However, one of the limitations of push-in terminal blocks is the lack of an intuitive user interface. If the installer is unfamiliar with the equipment, particularly in a field-wired application, or if the location of the connection is poorly lit or hard to access, it may be unclear exactly where to insert the tool or introduce the wire in order to make the connection. There are typically multiple openings in a terminal block for wire entry, tool insertion, jumpers, and test, and the sheer number of openings can easily confuse or overwhelm new or inattentive installers.
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» WAGO provides tool-operated push-in terminal blocks for both board-mounted and DIN-rail-mounted applications. These products, like the TOPJOB S 2002-1201 and 2624-1103 PCB Terminal Blocks pictured here, feature WAGO’s exclusive CAGE CLAMP connection technology, which is designed to establish reliable, maintenance-free connections.
Push-In Connections with Push-Button Operation
The ability to quickly, easily, and accurately distinguish where the actuation and wire connections are in push- in connection terminal blocks with push-button operation makes them a highly effective solution for a variety of industrial applications. All installation requires is an actuation tool to operate the push-button, introduce the stranded or flexible wire, terminate the connection, and disconnect the wire. To establish the connection, users simply remove the actuation tool. As such, push-in terminal blocks with push-button operation are especially well suited for use in space-constrained applications. Like other push-in connection terminal blocks, the connection is secured using spring clamp technology, which ruggedly withstands harsh environmental conditions including high vibration.
One of the only limits of push-button terminal blocks is that users need to operate the tool with one hand and wire with the other, as issues can arise if the terminal block is not securely mounted on a DIN rail, PCB, or panel, but securing these components is difficult to do while also holding the terminal block or assembly. The block would have to be held in place while using the tool to depress the push-button and insert wires.
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» WAGO’s push-button terminal blocks, like the 2202-1201 TOPJOB S Push-Button and 2231-106/026-000 Terminal Blocks pictured here, have intuitive actuation mechanisms, accept all conductor types, will never stick in the open position, and provide positive feedback during actuation.