# Wago 281-657 4-Conductor Protective Earth Terminal Block, Green/Yellow

**URL:** https://aio.lv/en/product--wago-281-657--12464598
**Data updated:** 2026-05-18 09:42 (EEST)
**Category:** Power Sockets
**Manufacturer:** Wago
**Manufacturer code:** 281-657
**EAN:** 4044918512008
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 13.99 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 11.56 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--wago-281-657--12464598

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

The Wago 281-657 is a 4-conductor protective earth terminal block designed for secure electrical connections in DIN rail mounting systems. Featuring a green and yellow color-coded housing for easy identification, this terminal block ensures reliable grounding for industrial and commercial electrical installations. It provides a robust and efficient solution for organizing wiring in control cabinets and distribution panels.

## Long description

The Wago 281-657 is a high-quality 4-conductor protective earth terminal block engineered for secure and reliable grounding in electrical installations. Designed for mounting on standard DIN-rails, this terminal block features a distinct green and yellow housing that allows for immediate identification as a protective earth connection. It utilizes the proven CAGE CLAMP connection technology, ensuring vibration-proof and maintenance-free electrical contacts for conductors up to 4 mm². This component is an essential element for organizing complex wiring systems in industrial control cabinets and distribution panels.
Advantages
This terminal block offers significant benefits for professional electrical assembly, primarily through its robust CAGE CLAMP technology which simplifies the wiring process while maintaining high contact pressure. The 4-conductor design allows for efficient distribution of ground connections within a compact footprint, saving valuable space on the DIN-rail. Its standardized design ensures compatibility with common mounting systems, and the clear color coding minimizes the risk of wiring errors during installation or maintenance, contributing to overall system safety and reliability.
Suitable for
Grounding applications in industrial control cabinets
Distribution panels requiring secure protective earth connections
Electrical systems where vibration-proof connections are essential
Projects utilizing 35 x 15 or 35 x 7.5 DIN-rails
When it may not be suitable
This terminal block is specifically designed for protective earth (grounding) purposes and should not be used for carrying live phase or neutral currents. It is not intended for applications requiring wire gauges larger than 4 mm² or for environments that exceed the specified mechanical and electrical tolerances of the CAGE CLAMP system.
Key specifications
Connection type: CAGE CLAMP
Conductor capacity: 4 mm²
Number of connection points: 4
Mounting: DIN-rail 35 x 15 and 35 x 7.5
Width: 6 mm
Depth: 86 mm
Height: 29 mm
Color: Green/Yellow
How to use
To install the Wago 281-657, snap the terminal block onto the appropriate DIN-rail until it clicks securely into place. Strip the insulation from your conductor to the recommended length and insert it into the CAGE CLAMP opening using a suitable operating tool. Ensure the wire is fully inserted to achieve a reliable contact. The terminal block provides four connection points, allowing for the commoning of multiple ground wires to a single protective earth rail.
What to consider before purchase
Ensure the DIN-rail type matches the 35 mm standard
Verify that the conductor cross-section does not exceed 4 mm²
Check if the 4-conductor configuration meets your specific grounding requirements
Confirm that the physical dimensions fit within your existing cabinet layout
Usage recommendations
Always ensure that the DIN-rail itself is properly grounded to the main protective earth bus of the installation to maintain the integrity of the grounding system. Use only calibrated tools for wire stripping and insertion to prevent damage to the conductors or the terminal block mechanism.

## Specifications

| Feature | Value |
|---|---|
| Number of connection points | 4 |
| Cable section (AWG) | 28 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 29 mm |
| Width | 6 mm |
| Depth | 86 mm |

### Features

| Feature | Value |
|---|---|
| Number of poles | 4 |

### Design

| Feature | Value |
|---|---|
| Material | Polyacrylic Acid (PAA) |
| Product colour | Green, Yellow |

## FAQ

### How much does the Wago 281-657 4-Conductor Protective Earth Terminal Block cost, and is it available for purchase?

The price is 13.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 74 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 20.07.2026 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/12464598/68767387_large.webp