# Legrand 421011 Auxiliary or Alarm Contact for DPX3 Circuit Breakers

**URL:** https://aio.lv/en/product--legrand-421011--12448753
**Data updated:** 2026-05-18 02:53 (EEST)
**Category:** Power Sockets
**Manufacturer:** Legrand
**Manufacturer code:** 421011
**EAN:** 3245064210119
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 36.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 30.57 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--legrand-421011--12448753

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The Legrand 421011 is a high-quality auxiliary or alarm contact designed for integration with DPX3 series circuit breakers. This electrical distribution board accessory ensures reliable signaling and monitoring of circuit breaker status. It is an essential component for industrial and commercial electrical installations, providing precise feedback for control and protection systems.

## Long description

The Legrand 421011 is a professional-grade auxiliary or alarm contact engineered specifically for seamless integration with DPX3 series circuit breakers. This essential electrical distribution accessory provides accurate status monitoring, allowing for reliable signaling of the circuit breaker's position within complex electrical systems. Designed for durability and precision, it serves as a critical component for maintaining safety and operational oversight in industrial and commercial electrical infrastructures.
Advantages
This auxiliary contact offers exceptional reliability in monitoring the operational state of circuit breakers, ensuring that control and protection systems receive immediate feedback. Its robust construction guarantees long-term performance in demanding environments, while its compatibility with the DPX3 series ensures a perfect fit and straightforward installation. By providing clear signaling, it enhances the overall management and safety of electrical distribution boards.
Suitable for
Industrial electrical distribution systems
Commercial building power management
Remote monitoring of circuit breaker status
Integration into automated control and protection circuits
When it may not be suitable
This device is specifically designed for use with Legrand DPX3 series circuit breakers and is not compatible with other series or brands. It should not be used in applications requiring different signaling functions or in environments that exceed its specified technical operating parameters.
Key specifications
Compatibility: Legrand DPX3 series circuit breakers
Function: Auxiliary or alarm contact
Width: 55 mm
Depth: 70 mm
Height: 107 mm
Quantity: 1 piece per pack
How to use
Installation should be performed by a qualified electrician in accordance with local electrical codes. The contact is mounted directly onto the compatible DPX3 circuit breaker. Ensure the power is disconnected before beginning the installation process. Once physically secured, connect the signal wires to the appropriate terminals as indicated in the technical documentation provided with the circuit breaker. After installation, verify the signaling function by toggling the circuit breaker to ensure the contact correctly reports the status.
What to consider before purchase
Verify compatibility with your specific DPX3 circuit breaker model
Ensure the installation environment meets the physical dimensions of the device
Confirm that the electrical system requirements align with the contact's signaling capabilities
Usage recommendations
Always ensure that the main power supply is fully isolated before attempting to install or maintain any electrical components to prevent accidental injury or equipment damage.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.048 kg |
| Height | 107 mm |
| Width | 55 mm |
| Depth | 70 mm |

### Packaging data

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

## FAQ

### How much does the Legrand 421011 Auxiliary or Alarm Contact for DPX3 cost, and is it available for purchase?

The price is 36.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 48 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 06.07.2026 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 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.

## Image

https://aio.lv/img/cache/product/12448753/68778087_large.webp