# Legrand 042857 Safety Transformer 100VA 230-400V/24V

**URL:** https://aio.lv/en/product--legrand-042857--12444694
**Data updated:** 2026-05-18 02:42 (EEST)
**Category:** Power Supplies (PSU)
**Manufacturer:** Legrand
**Manufacturer code:** 042857
**EAN:** 3245060428570
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 143.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 118.59 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--legrand-042857--12444694

## 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 042857 is a high-quality safety transformer designed for reliable voltage conversion. It features a power rating of 100VA and supports primary voltages of 230V or 400V, providing a 24V output. This robust component is engineered for industrial and professional electrical installations, ensuring safe and efficient power distribution for various control circuits and low-voltage equipment.

## Long description

The Legrand 042857 safety transformer is a professional-grade electrical component engineered for precise voltage conversion in demanding environments. With a power rating of 100VA, this unit is designed to step down primary voltages of 230V or 400V to a stable 24V output, ensuring reliable operation for low-voltage control systems and industrial equipment.
Advantages
This transformer offers exceptional reliability and safety for electrical installations. Its robust construction ensures consistent performance under continuous load, minimizing the risk of overheating or electrical failure. By providing galvanic isolation between the primary and secondary circuits, it enhances the safety of connected equipment and personnel, making it an ideal choice for complex control panels and automation systems where stability is paramount.
Suitable for
Industrial control circuits
Low-voltage lighting systems
Automation and signaling equipment
Professional electrical distribution panels
When it may not be suitable
This transformer is not intended for high-power applications exceeding its 100VA rating. It is also not suitable for outdoor environments unless housed within an appropriate IP-rated protective enclosure to prevent moisture and dust ingress.
Key specifications
Power rating: 100VA
Primary voltage: 230V or 400V
Secondary voltage: 24V
Design: Safety transformer
How to use
Installation should be performed by a qualified professional in accordance with local electrical regulations. The transformer is typically mounted on a DIN rail or a flat surface within a control cabinet. Ensure that the primary input wires are connected to the correct terminals corresponding to either the 230V or 400V supply. The secondary 24V output should be wired to the control devices, ensuring that the total load does not exceed the 100VA capacity of the unit.
What to consider before purchase
Verify that the 100VA power capacity is sufficient for your specific load requirements.
Ensure the input voltage of your supply matches either 230V or 400V.
Check the available space in your control cabinet for proper ventilation.
Usage recommendations
Always verify the input voltage before energizing the transformer to prevent damage. Ensure that the secondary circuit is protected by an appropriately rated fuse or circuit breaker to prevent overcurrent conditions.

## Specifications

### Logistics data

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

## FAQ

### How much does the Legrand 042857 Safety Transformer 100VA cost, and is it available for purchase?

The price is 143.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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, Installment. All transactions are 100% secure and encrypted.

### Can Legrand 042857 Safety Transformer 100VA 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/12444694/68779619_large.webp