# Legrand 421056 Terminal Cover for DPX3 250 3P Circuit Breakers

**URL:** https://aio.lv/en/product--legrand-421056--12459183
**Data updated:** 2026-05-18 09:27 (EEST)
**Category:** Home & DIY Accessories
**Manufacturer:** Legrand
**Manufacturer code:** 421056
**EAN:** 3245064210560
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Legrand 421056 is a terminal cover designed for DPX3 250 3P molded case circuit breakers. This essential electrical distribution accessory provides protection for terminal connections, ensuring safety and compliance with installation standards. It is a durable component engineered for reliable integration into industrial and commercial electrical distribution systems.

## Long description

The Legrand 421056 terminal cover is a specialized accessory designed specifically for DPX3 250 3P molded case circuit breakers. This component serves as a protective barrier for terminal connections, preventing accidental contact with live parts and ensuring that electrical installations meet safety and regulatory standards. Constructed from high-quality, durable materials, it is engineered to withstand the demands of industrial and commercial electrical distribution environments, providing a secure and reliable fit for your circuit protection equipment.
Advantages
The primary benefit of this terminal cover is the enhanced safety it provides by shielding exposed electrical connections from dust, debris, and accidental physical contact. Its precise design ensures seamless integration with DPX3 250 3P circuit breakers, allowing for a quick and secure installation process. By utilizing this cover, you maintain the integrity of your electrical distribution system while ensuring compliance with professional installation requirements and safety protocols.
Suitable for
Industrial electrical distribution panels
Commercial building power management systems
Protection of 3-pole molded case circuit breakers
Upgrading existing electrical installations for improved safety
This terminal cover may not be suitable for circuit breakers other than the DPX3 250 3P series, as it is specifically molded to fit the dimensions and terminal configuration of this model. It is also not intended for use in environments where the specific ingress protection rating of this cover is insufficient for the local environmental hazards.
Key specifications
Compatibility: DPX3 250 3P circuit breakers
Width: 108 mm
Depth: 128 mm
Height: 90 mm
Quantity: 1 piece per pack
To install the Legrand 421056 terminal cover, ensure that the power supply to the circuit breaker is completely disconnected and locked out. Align the cover with the terminal area of the DPX3 250 3P circuit breaker and press it firmly into place until it clicks or is secured according to the manufacturer's installation guide. Verify that the cover is properly seated and provides full coverage of the terminals before restoring power to the system.
What to consider before purchase
Verify that your circuit breaker model is a DPX3 250 3P unit
Ensure the physical dimensions of 108 x 128 x 90 mm fit within your existing panel layout
Confirm the number of poles matches your specific circuit breaker configuration
Always perform electrical work in accordance with local safety regulations and ensure that the circuit breaker is de-energized before attempting to install or remove any accessories.

## Specifications

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.266 kg |
| Height | 90 mm |
| Width | 108 mm |
| Depth | 128 mm |

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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 Legrand 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 Legrand 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: weight, 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.

### Where can I download the instructions for Legrand 421056 Terminal Cover for DPX3 250?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/12459183/68774245_large.webp