# Legrand Undervoltage Release 200-240V AC/DC for DPX3 Circuit Breakers

**URL:** https://aio.lv/en/product--legrand-421022--11339516
**Data updated:** 2026-05-18 02:41 (EEST)
**Category:** Home & DIY Accessories
**Manufacturer:** Legrand
**Manufacturer code:** 421022
**EAN:** 3245064210225
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 119.49 €
**Prices and availability valid until:** 2026-08-07 23:59
**Price without VAT (21%):** 98.75 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--legrand-421022--11339516

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

The Legrand undervoltage release (421022) is a dedicated accessory for DPX3 series circuit breakers. Designed for 200-240V AC/DC operation, this device provides essential protection by automatically tripping the circuit breaker when the supply voltage drops below a specified threshold. It is a critical component for ensuring electrical safety and system reliability in industrial and commercial power distribution applications.

## Long description

The Legrand undervoltage release for DPX3 circuit breakers is a specialized safety accessory engineered to monitor supply voltage levels in electrical distribution systems. Operating within a range of 200-240V AC/DC, this device ensures that the circuit breaker automatically trips if the voltage falls below the required threshold, thereby preventing potential damage to sensitive equipment and enhancing overall operational safety in industrial and commercial environments.
Advantages
This undervoltage release offers a robust solution for maintaining system integrity by providing an automated response to power fluctuations. By integrating this component into your DPX3 circuit breaker setup, you gain a reliable mechanism that protects connected loads from the risks associated with low-voltage conditions. Its precise design ensures seamless compatibility with the DPX3 series, facilitating straightforward installation and consistent performance in demanding power distribution applications.
Suitable for
Industrial power distribution panels
Commercial electrical infrastructure
Protection of sensitive machinery against voltage drops
Emergency shutdown systems
When it may not be suitable
This device is not intended for use with circuit breakers outside of the Legrand DPX3 series. It is also not suitable for applications where the supply voltage consistently falls outside the specified 200-240V AC/DC operating range, as this would lead to unintended or constant tripping of the circuit breaker.
Key specifications
Operating voltage: 200-240V AC/DC
Compatibility: Legrand DPX3 series circuit breakers
Function: Automatic tripping on undervoltage
How to use
Installation should be performed by a qualified electrician in accordance with local electrical codes. The release is designed to be mounted internally within the designated slot of the DPX3 circuit breaker. Ensure the power supply is completely disconnected before attempting to install or service the device. Once correctly seated and wired according to the technical documentation, the unit will automatically monitor the voltage and trigger the breaker mechanism when necessary.
What to consider before purchase
Verify compatibility with your specific DPX3 model
Ensure the control voltage matches your system requirements
Confirm that installation is performed by certified personnel
Usage recommendations
Regularly inspect the electrical system to ensure that the undervoltage release remains free from dust and debris, and perform periodic testing of the tripping function to guarantee continued reliability in your safety infrastructure.

## FAQ

### How much does the Legrand Undervoltage Release 421022 for DPX3 cost, and is it available for purchase?

The price is 119.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 27.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Legrand Undervoltage Release 421022 for DPX3 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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

## Image

https://aio.lv/img/cache/product/11339516/65668014_large.webp