# Wago 281-687 3-Conductor Terminal Block, 4mm2, Green and Yellow

**URL:** https://aio.lv/en/product--wago-281-687--12468333
**Data updated:** 2026-05-18 09:29 (EEST)
**Category:** Home & DIY Accessories
**Manufacturer:** Wago
**Manufacturer code:** 281-687
**EAN:** 4045454100193
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.49 €
**Prices and availability valid until:** 2026-08-04 23:59
**Price without VAT (21%):** 8.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--wago-281-687--12468333

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

The Wago 281-687 is a high-quality 3-conductor terminal block designed for secure electrical connections. Featuring a 4mm2 cross-section, this green and yellow terminal block is ideal for grounding applications in industrial and commercial electrical installations. Its compact design ensures efficient space utilization in control cabinets and distribution boards, providing reliable performance and easy installation for professional wiring projects.

## Long description

The Wago 281-687 is a professional-grade 3-conductor terminal block engineered for reliable electrical connections in demanding environments. Designed with a 4mm2 cross-section and featuring the standard green and yellow color coding, this component is specifically optimized for protective earth or grounding applications. Its robust construction ensures long-term stability and safety in industrial and commercial electrical systems, making it a trusted choice for engineers and electricians requiring precise and secure wiring solutions.
Advantages
This terminal block offers exceptional reliability through its advanced spring pressure connection technology, which maintains consistent contact force regardless of vibrations or thermal expansion. The compact design allows for high-density wiring, significantly saving space within control cabinets and distribution boards. Furthermore, the intuitive design facilitates rapid installation and maintenance, reducing labor time while ensuring that grounding connections meet stringent safety standards.
Suitable for
Grounding and protective earth connections in control panels
Industrial automation and machinery wiring
Commercial building electrical distribution systems
Modular terminal block assemblies in DIN-rail mounted configurations
When it may not be suitable
This terminal block is not intended for use with conductors exceeding the specified 4mm2 cross-section capacity. It is also not suitable for applications requiring high-current power distribution beyond its rated technical limits or for environments where exposure to extreme corrosive chemicals might compromise the integrity of the housing material.
Key specifications
Conductor capacity: 4mm2
Connection type: 3-conductor
Color: Green and Yellow
Width: 6 mm
Depth: 73.5 mm
Height: 29 mm
How to use
To use the Wago 281-687, mount the terminal block onto a standard DIN rail until it clicks securely into place. Strip the insulation from your conductors to the recommended length and insert them into the terminal openings. The spring-loaded mechanism automatically secures the wire, ensuring a vibration-proof connection without the need for manual screw tightening. To remove or adjust a wire, use a compatible operating tool to release the spring clamp.
What to consider before purchase
Verify that the 4mm2 wire size matches your specific project requirements
Ensure compatibility with your existing DIN rail mounting system
Confirm that the green and yellow color coding aligns with your local electrical safety regulations for grounding
Usage recommendations
Always ensure that the power supply is disconnected before performing any wiring operations. Use appropriate wire stripping tools to prevent damage to the conductor strands and ensure a clean, reliable connection within the terminal block.

## Specifications

| Feature | Value |
|---|---|
| Material | Polyamide |
| Connector contacts plating | Copper |
| Cable section (AWG) | 28 |
| Maximum cable section | 4 mm² |
| Minimum cable section | 0.08 mm² |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 29 mm |
| Width | 6 mm |
| Depth | 73.5 mm |

### Design

| Feature | Value |
|---|---|
| Certification | RoHS |
| Product colour | Green, Yellow |

## FAQ

### How much does the Wago 281-687 3-Conductor Terminal Block cost, and is it available for purchase?

The price is 10.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 65 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Wago products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Wago service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/12468333/68789636_large.webp