# Wago 280-637 3-conductor terminal block 2.5mm² yellow-green

**URL:** https://aio.lv/en/product--wago-280-637--12462749
**Data updated:** 2026-05-18 09:37 (EEST)
**Category:** Home & DIY Accessories
**Manufacturer:** Wago
**Manufacturer code:** 280-637
**EAN:** 4044918473064
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 8.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--wago-280-637--12462749

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

The Wago 280-637 is a 3-conductor terminal block designed for reliable electrical connections. Featuring a 2.5mm² cross-section and a distinct yellow-green color, it is ideal for protective earth grounding applications in industrial and commercial control cabinets. This component ensures secure wire termination and efficient space utilization in DIN rail mounting systems.

## Long description

The Wago 280-637 is a high-quality 3-conductor terminal block engineered for secure and reliable electrical connections in professional environments. Designed with a 2.5mm² cross-section, this component is specifically color-coded in yellow-green to serve as a protective earth grounding terminal. Its compact design allows for efficient space management within industrial and commercial control cabinets, ensuring that wiring remains organized and safe.
Advantages
This terminal block utilizes advanced spring pressure connection technology, which provides vibration-resistant and maintenance-free terminations. The 3-conductor configuration allows for easy branching of protective earth lines, simplifying complex wiring layouts. Its robust construction ensures long-term durability, while the standardized design facilitates quick and straightforward installation on DIN rails, significantly reducing assembly time in electrical panels.
Suitable for
Protective earth grounding in control cabinets
Industrial automation systems
Commercial electrical distribution panels
DIN rail mounting applications
When it may not be suitable
This terminal block is not intended for use with conductors exceeding the specified 2.5mm² cross-section capacity. It is also not suitable for applications requiring high-current power distribution beyond its rated electrical specifications or for environments where specialized hazardous area protection is mandatory without additional housing.
Key specifications
Conductor capacity: 2.5mm²
Connection type: 3-conductor
Color: Yellow-green
Width: 5 mm
Depth: 50.5 mm
Height: 36.5 mm
Mounting: DIN rail
How to use
To install the Wago 280-637, snap the terminal block onto a standard DIN rail until it clicks into place. Strip the insulation from your conductors to the recommended length and insert them into the spring-loaded clamping units. The spring mechanism automatically secures the wire, ensuring a gas-tight and reliable connection without the need for manual screw tightening. Ensure that all connections are fully seated before energizing the system.
What to consider before purchase
Verify that the conductor size matches the 2.5mm² specification
Ensure compatibility with your existing DIN rail system
Confirm the total number of connections required for your grounding circuit
Usage recommendations
Always ensure that the power supply is disconnected before performing any wiring modifications. Use appropriate wire stripping tools to prevent damage to the conductor strands, which ensures the integrity of the spring connection.

## Specifications

| Feature | Value |
|---|---|
| Number of poles | 3P |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 36.5 mm |
| Width | 5 mm |
| Depth | 50.5 mm |

## FAQ

### How much does the Wago 280-637 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 — 8 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 08.07.2026 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

## Image

https://aio.lv/img/cache/product/12462749/68770309_large.webp