# Wago 781-631 3-Conductor Terminal Block, 4mm², Grey

**URL:** https://aio.lv/en/product--wago-781-631--12468291
**Data updated:** 2026-05-18 09:39 (EEST)
**Category:** Power Sockets
**Manufacturer:** Wago
**Manufacturer code:** 781-631
**EAN:** 4044918501231
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 4.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--wago-781-631--12468291

## 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 781-631 is a 3-conductor DIN-rail terminal block designed for secure electrical connections. Featuring a 4mm² cross-section and a rated voltage of 1000V, this grey terminal block is part of the TOPJOB S series, ensuring reliable performance in industrial and control cabinet wiring applications. Its compact design facilitates efficient space utilization in electrical installations.

## Long description

The Wago 781-631 is a professional-grade 3-conductor through terminal block designed for reliable electrical distribution in industrial environments. Engineered for mounting on standard DIN-rails, this component provides a secure and organized connection point for wiring within control cabinets and electrical distribution boards. Its robust construction and precise engineering ensure long-term stability for various electrical systems.
Advantages
This terminal block offers significant benefits for electrical installers, primarily through its space-saving design that allows for high-density wiring in confined spaces. The 3-conductor configuration simplifies complex circuit branching, reducing the need for additional jumpers or external connection points. With a high rated voltage capacity, it provides versatility for demanding electrical applications while maintaining consistent contact quality and vibration resistance.
Suitable for
Industrial control cabinet wiring
Electrical distribution systems
Automation and process control panels
Building installation technology
When it may not be suitable
This terminal block is not intended for use in environments with extreme moisture or corrosive gases unless housed in an appropriate protective enclosure. It is also not suitable for conductors exceeding the specified 4mm² cross-section capacity.
Key specifications
Conductor capacity: 4mm²
Number of connection points: 3
Rated voltage: 1000V
Width: 6mm
Depth: 77mm
Height: 43.5mm
Mounting type: DIN-rail
How to use
To use the Wago 781-631, snap the terminal block onto a standard DIN-rail until it clicks securely into place. Strip the insulation from your conductors according to the manufacturer's recommended length. Insert the prepared wire into the terminal opening until it is firmly seated. Ensure that the connection is tight and that no bare wire is exposed outside the terminal housing. For multi-conductor configurations, repeat the process for each connection point.
What to consider before purchase
Ensure the DIN-rail type matches the mounting requirements
Verify that the conductor cross-section is compatible with the 4mm² rating
Check the total space available in the enclosure for the 6mm width per block
Confirm the voltage requirements of your circuit do not exceed 1000V
Usage recommendations
Always verify that the power supply is disconnected before performing any wiring tasks. Ensure that all connections are inspected for mechanical integrity before energizing the system.

## Specifications

| Feature | Value |
|---|---|
| Current | 32 A |
| Cable section (AWG) | 28 |
| Maximum cable section | 4 mm² |
| Minimum cable section | 0.08 mm² |
| Cable section | 0.08 - 4 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 43.5 mm |
| Width | 6 mm |
| Depth | 77 mm |

### Power

| Feature | Value |
|---|---|
| Rated voltage | 1000 V |

### Design

| Feature | Value |
|---|---|
| Certification | RoHS |
| Material | Polyamide |
| Product colour | Grey |

## FAQ

### How much does the Wago 781-631 3-Conductor Terminal Block cost, and is it available for purchase?

The price is 5.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 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

### 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/12468291/68789668_large.webp