# Enclosure Accessory Rittal AS 4055.240 metallic — round sheet-metal punch for steel, Ø 40.5 mm

**URL:** https://aio.lv/en/product--rittal-4055240--1488403
**Data updated:** 2026-04-28 18:45 (EEST)
**Category:** Tool kits and accessories
**Manufacturer:** Rittal
**Manufacturer code:** 4055240
**EAN:** 4028177808300
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 73.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 60.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rittal-4055240--1488403

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Rittal AS 4055.240 is a metallic enclosure accessory: a round sheet-metal punch designed for use with steel panels. The tool produces Ø 40.5 mm holes and is intended for creating precise circular openings in steel enclosures and panels. Suitable for electrical cabinets, control enclosures and on-site panel modifications.

## Long description

The Rittal AS 4055.240 is a metallic-coloured round sheet metal punch designed for creating precise circular cut-outs in steel panels. It is intended for use where clean, repeatable Ø40.5 mm holes are required in control cabinets, enclosures, or similar sheet-metal installations.
Advantages
The tool provides a consistent round cut-out with a Ø40.5 mm diameter suitable for standardized fittings. Its metallic finish is durable and compatible with industrial environments. The product is compact and lightweight, making it easy to handle and position on steel sheets.
Suitable for
Punching Ø40.5 mm round holes in steel sheet metal
Creating apertures for cable glands, switches, or conduit fittings
Use on control cabinets, electrical enclosures, and panel work
When it may not be suitable
This punch is specifically sized for Ø40.5 mm round cut-outs and may not be appropriate when different hole diameters are required. It is designed for use on steel sheet metal; performance and suitability for other materials such as aluminum, stainless steel of high hardness, or plastics should be verified before use.
Key specifications
Colour: Metallic
Punch diameter (nominal): Ø40.5 mm
Weight (package): 554 g
How to use
Mark the desired hole centre on the steel panel and secure the sheet to prevent movement. Position the punch over the marked point and apply force according to the punch tool’s operating method (manual or press). After forming the hole, remove any sharp edges or burrs to ensure a clean aperture suitable for installing glands or fittings.
What to consider before purchase
Required hole diameter — this punch is for Ø40.5 mm cut-outs
Material compatibility — intended for steel sheet metal; check suitability for other materials
Mounting and operation method — confirm whether a manual or press-operated punch is needed
Usage recommendations
Use appropriate personal protective equipment and secure the workpiece before punching. Deburr edges after cutting to ensure safe and proper installation of components.

## Specifications

| Feature | Value |
|---|---|
| Package weight | 554 g |
| Product colour | Metallic |
| Hole diameter | 40.5 mm |

## FAQ

### How much does the Rittal AS 4055.240 sheet-metal punch Ø 40.5 mm cost, and is it available for purchase?

The price is 73.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 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 15.07.2026 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. 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 Rittal 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 Rittal 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

### Where can I download the instructions for Rittal AS 4055.240 sheet-metal punch Ø 40.5 mm?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/1488403/62463231_large.webp