# Siemens 3NA3240 NH Size 2 Safety Fuse, 200A, 500V, gG Class

**URL:** https://aio.lv/en/product--siemens-3na3240--1512127
**Data updated:** 2026-05-18 02:46 (EEST)
**Category:** Power Supplies (PSU)
**Manufacturer:** Siemens
**Manufacturer code:** 3NA3240
**EAN:** 4001869056258
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 121.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 100.40 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3na3240--1512127

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Courier delivery to door | 16.07.2026 | 53.99 EUR |

## Summary description

The Siemens 3NA3240 is a high-performance NH size 2 safety fuse designed for reliable electrical circuit protection. Rated at 200A and 500V with gG class characteristics, this fuse provides effective protection against overloads and short circuits in industrial power distribution systems. It features non-insulated lugs for secure installation and is supplied as a single unit, ensuring high operational safety and durability.

## Long description

The Siemens 3NA3240 NH size 2 safety fuse is a robust electrical component engineered to provide dependable protection for industrial power distribution systems. With a rated current of 200A and a voltage rating of 500V, this gG class fuse is designed to interrupt overloads and short circuits effectively, ensuring the integrity of electrical installations and connected equipment.
Advantages
This safety fuse offers exceptional reliability and durability in demanding industrial environments. Its gG class characteristic ensures full-range protection, meaning it can safely clear both low-level overloads and high-level short-circuit currents. The construction features non-insulated lugs, which facilitate a secure and stable connection within standard NH fuse bases, minimizing contact resistance and enhancing overall operational safety.
Suitable for
Industrial power distribution panels
Protection of electrical cables and lines
Switchgear and control gear assemblies
Heavy-duty electrical infrastructure
When it may not be suitable
This fuse is not intended for use in residential applications where standard miniature circuit breakers are typically required. It is also unsuitable for circuits exceeding 500V or for applications requiring specialized fast-acting characteristics, such as sensitive semiconductor protection.
Key specifications
Size: NH 2
Rated current: 200A
Rated voltage: 500V
Characteristic: gG (full-range protection)
Terminal type: Non-insulated lugs
How to use
The fuse should be installed by a qualified professional into a compatible NH size 2 fuse base or switch-disconnector. Ensure the power is completely disconnected before insertion or removal. Align the non-insulated lugs with the contact clips of the base and press firmly until the fuse is seated correctly. Always verify that the voltage and current ratings match the requirements of the circuit being protected.
What to consider before purchase
Verify that the fuse base size matches the NH 2 standard.
Ensure the circuit voltage does not exceed the 500V rating.
Confirm that the 200A rating is appropriate for the load and cable cross-section.
Check local electrical regulations regarding the use of industrial fuses.
Usage recommendations
Always use an appropriate NH fuse handle or extraction tool when installing or replacing the fuse to ensure personal safety and prevent accidental contact with live parts.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Purpose | High voltage |

### Design

| Feature | Value |
|---|---|
| Product colour | Multicolour |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 451 g |
| Package depth | 75 mm |
| Package height | 152 mm |
| Package width | 159 mm |

### Logistics data

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

## FAQ

### How much does the Siemens 3NA3240 NH Size 2 Safety Fuse 200A 500V cost, and is it available for purchase?

The price is 121.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 12 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 13.07.2026 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 Siemens 3NA3240 NH Size 2 Safety Fuse 200A 500V 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 Siemens 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 Siemens 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: product colour, 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/1512127/57988344_large.webp