# Mersen W1014572 Ultra-Fast Full-Range Cylindrical Fuse gR 690VAC 10x38mm 4A

**URL:** https://aio.lv/en/product--mersen-w1014572--12467783
**Data updated:** 2026-05-18 09:37 (EEST)
**Category:** Electronics Accessories
**Manufacturer:** Mersen
**Manufacturer code:** W1014572
**EAN:** 3605340500950
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 9.91 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mersen-w1014572--12467783

## 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 Mersen W1014572 is an ultra-fast, full-range cylindrical fuse designed for reliable circuit protection. Rated for 690VAC with a 4A current capacity and 10x38mm dimensions, this gR class fuse provides superior protection for power electronics and semiconductor devices. It ensures high-speed interruption of short-circuit currents, maintaining system integrity in demanding industrial electrical applications.

## Long description

The Mersen W1014572 is a high-performance, ultra-fast, full-range cylindrical fuse engineered to provide robust circuit protection for sensitive power electronics and semiconductor equipment. With a rated voltage of 690VAC and a current capacity of 4A, this 10x38mm fuse is specifically designed to handle the demanding requirements of modern industrial electrical systems, ensuring rapid interruption of short-circuit currents to prevent damage to critical components.
Advantages
This fuse offers exceptional reliability through its ultra-fast response time, which is essential for protecting delicate semiconductor devices from transient overcurrents. Its full-range gR classification means it is capable of clearing both overload and short-circuit conditions, providing comprehensive protection in a compact cylindrical form factor. The robust construction ensures consistent performance even in high-stress industrial environments, making it a dependable choice for maintaining system integrity and minimizing downtime.
Suitable for
Semiconductor protection
Power electronics modules
Industrial frequency converters
Motor drives and soft starters
Uninterruptible power supplies
This fuse is not intended for general-purpose residential electrical circuits or high-voltage utility distribution networks. It is specifically optimized for electronic power conversion equipment and may not provide the correct protection characteristics for standard household appliances or general wiring installations.
Key specifications
Rated voltage: 690VAC
Rated current: 4A
Size: 10x38mm
Class: gR (full-range semiconductor protection)
Body type: Cylindrical
To use this fuse, ensure it is installed within a compatible 10x38mm fuse holder or disconnect switch that is rated for the appropriate voltage and current levels. The fuse should be inserted securely to ensure proper electrical contact. Always verify that the circuit is de-energized before attempting to install or replace the fuse to prevent electrical shock or arc flash hazards.
What to consider before purchase
Verify the current and voltage requirements of your specific application
Ensure compatibility with your existing 10x38mm fuse holder
Check that the gR class is appropriate for your semiconductor protection needs
Usage recommendations: Always replace the fuse with an identical unit of the same rating and class to maintain the safety and performance standards of your equipment. Do not attempt to repair or bypass a blown fuse, as this can lead to catastrophic equipment failure and safety risks.

## FAQ

### How much does the Mersen W1014572 Ultra-Fast Cylindrical Fuse 4A cost, and is it available for purchase?

The price is 11.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 26 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 Mersen 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 Mersen 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/12467783/68770232_large.webp