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Rapid Online - Rapid Electronics Ltd.£0.57Visit shop WAGO 250-402 2 Pole 2.5mm 4A 45° Push Button PCB Terminal Block Grey
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The WAGO 250-402 is an essential component for electronics engineers and hobbyists who require reliable, compact, and solderable connections for printed circuit boards. Its primary benefit is the combination of a 45-degree angled entry and a push-button mechanism that simplifies wire management in tight spaces; however, users should note it is specifically designed for 0.5 mm² conductors, which may limit use in high-power applications.
| Model Part Number | 250-402 |
|---|---|
| Brand | WAGO |
The terminal block is designed for conductors up to 0.5 mm².
Yes, it is rated for operation between -60 °C and 105 °C.
No, solid conductors can be inserted directly. For fine-stranded wires, you simply press the built-in push-button.
The 250-402 features a 2.5mm pin spacing.
You can insert a 1.3mm diameter test pin into the dedicated test port located on the top of the unit.
Ensure you are using the correct conductor size (0.5 mm²) and that you are using the push-button mechanism for stranded wire.
Verify that the test pin diameter is exactly 1.3mm; larger pins may damage the internal contact mechanism.
Check that the wire is stripped to the proper length and fully seated within the terminal housing.
To install the WAGO 250-402, align the solder pins with the corresponding holes on your PCB and apply standard soldering techniques. Ensure that the PCB pads are designed to accommodate the 2.5mm pitch. For solid conductors, simply push the wire directly into the port for a secure connection. For fine-stranded conductors, press down on the integrated push-button before inserting or removing the wire to prevent damage to the spring mechanism. Keep the device clean and free from flux residue to ensure the push-button remains functional and the test port provides accurate readings.
