A WAGO terminal block is an electrical connection terminal used to connect wires safely and easily without screws . WAGO terminal blocks are widely used in electrical installations, control cabinets, and lighting applications because they are reliable, reusable, and time-saving .
1. Features of WAGO terminal blocks
✅ Screwless → Wires are secured with a spring clamp system.
✅ Easy to use → Plug-in or lever mechanism for quick installation.
✅ Reusable → Can be easily detached and reused.
✅ Suitable for solid and flexible wires → Often compatible with different wire thicknesses (e.g. 0.08 - 6 mm²) .
✅ Compact size → Ideal for tight installation spaces and junction boxes .
✅ Available in multiple variants → For example 2-, 3- or 5-pin versions .
2. Types of WAGO terminal blocks and their applications
| Type WAGO clamp | Mechanism | Application |
|---|---|---|
| WAGO 221 series | Lever | Quickly connect solid and flexible wires |
| WAGO 2273 series | Push-in | Connection boxes and lighting systems |
| WAGO 222 series | Lever | Ideal for renovations and temporary connections |
| WAGO 273 series | Push-in | Suitable for solid wires in distribution boxes |
| WAGO 281 and 285 series | Screwless rail mounting | Industrial applications and control cabinets |
📌 Popular choice: The WAGO 221 series with levers is the most commonly used in domestic installations.
3. How do you use a WAGO clamp?
🔹 Step 1: Strip off approximately 10-13mm of the wire insulation.
🔹 Step 2: Open the clamp (for a lever clamp) or push the wire directly into the insertion opening.
🔹 Step 3: Make sure the wire is securely connected and test the connection.
🔹 Step 4: Close the case and check if the connection is working properly.
💡 Tip: Use a voltage tester to check if the connection is made correctly.
4. Advantages of WAGO terminal blocks over traditional terminal blocks
| Feature | WAGO clamp | Crown stone (screw clamp) |
|---|---|---|
| Installation speed | Very fast (insert or lever) | Slowly (tightening screws) |
| Reusability | Yes, easy to open | No, wire gets damaged faster |
| Reliability | High tensile strength, secure clamp connection | May become loose due to vibrations |
| Suitable for flexible wires | Yes, without wire end sleeve | No, it must be with a wire end sleeve |
| Compact and space-saving | Yes | Less efficient |
📌 Conclusion: WAGO clamps are faster, safer and reusable , while terminal blocks require more maintenance and precise mounting .
5. Where are WAGO terminal blocks used?
📍 Domestic installations → Connection of sockets, switches and lighting .
📍 Distribution boxes and switch cabinets → For neat and compact wiring.
📍 Lighting technology → Easy connection of LED drivers, luminaires and transformers .
📍 Industrial installations → Insulated connections in machines and panels .
📍 Automotive and solar panels → Quick installation of electrical circuits.
💡 In short:
A WAGO terminal block is a screwless connection terminal block that connects electrical wires quickly, safely, and reliably . They are reusable, space-saving, and easier to install than traditional terminal blocks . WAGO terminal blocks are widely used in electrical installations, lighting, and switch cabinets .