Preparation For Push-in Terminal Block Wiring: Wire Stripping Length

In industrial field assembly, push in terminal block is changing workers' perception of wiring efficiency with its real-time feedback clamping feel. This connection technology directly locks the wires in place using internal spring tension, eliminating the need for tightening traditional screw terminals. However, to achieve this "plug-and-play" experience, precise wire preparation is crucial.

Wire stripping tools and operating procedures

The treatment of the wire ends directly determines the connection quality of push in din rail terminal blocks.

Use automatic wire strippers to adjust to the precise stripping length. For multi-strand wires, after stripping the insulation, slightly twist the core to prevent loose copper wires from obstructing the insertion path. Rigid single-strand wires can be inserted directly. The operating port should face the operator, the wire aligned in a straight line with the terminal interface, and a uniform pushing force applied until the core is completely submerged in the hole.

The Importance of Precise Wire Stripping

The stripping length is a variable that requires precise control. If the stripped conductor is too long, the exposed metal may contact adjacent terminals during equipment operation, causing a short circuit. If the stripped length is too short, the insulation may get stuck at the terminal entrance, resulting in insufficient conductor insertion depth and preventing the internal spring locking mechanism from being triggered. High-quality push fit din rail terminals equipment will indicate the wire gauge and corresponding stripping dimensions in the casing design; it is recommended to develop the habit of checking the product markings before operation.

Special Treatment for Flexible Wires

Modern control cabinets increasingly use flexible wires. Because the wire core is extremely thin and soft, direct insertion into the push fit terminal block may cause the wire core to bend or fail to effectively push the spring clip. In this case, crimping the terminal ferrule becomes the standard solution. The ferrule is placed over the stripped core and crimped with specialized crimping pliers to form a rigid "solid head." This treated end can be easily pushed into the terminal like a single-strand wire, providing a stable and vibration-resistant connection.