# Siemens 8WD4420-0EA Signalling Column Acoustic Module 24V DC 70mm

**URL:** https://aio.lv/en/product--siemens-8wd4420-0ea--12446358
**Data updated:** 2026-05-18 02:42 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** Siemens
**Manufacturer code:** 8WD4420-0EA
**EAN:** 4011209497450
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 54.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 45.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-8wd4420-0ea--12446358

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The Siemens 8WD4420-0EA is a 70mm diameter acoustic signalling module designed for industrial automation systems. It supports both continuous and modulated signal tones and operates at 24V DC. This module is an essential component for building modular signalling columns, providing reliable audible status indication in various manufacturing and process control environments.

## Long description

The Siemens 8WD4420-0EA is a high-performance 70mm diameter acoustic signalling module engineered for industrial automation and process control environments. As part of the SIRIUS 8WD modular system, this siren element provides reliable audible status indication, ensuring that operators are alerted to critical process changes or safety conditions. The device is designed to operate at 24V AC/DC and features a robust construction that withstands demanding industrial conditions, including exposure to shocks and vibrations.
Advantages
This acoustic module offers exceptional versatility through its ability to produce both continuous and modulated tones, allowing for distinct signalling patterns based on specific operational requirements. The unit is built with a high degree of protection, rated at IP65, which ensures reliable performance even in harsh environments where dust or moisture may be present. Installation is streamlined by a secure bayonet mechanism, which facilitates quick assembly and efficient replacement of components within a signalling column. Furthermore, the device allows for manual adjustments to both tone and volume, providing users with the flexibility to tailor the audible output to the specific noise levels of their facility.
Suitable for
Industrial manufacturing lines
Process control monitoring systems
Safety and emergency warning installations
Automated machinery status indication
This module may not be suitable for environments requiring extremely high-decibel output beyond the 95-105 dB range or for applications where a specific non-standard signal frequency is mandated by local safety regulations. It is also not intended for standalone use without the corresponding base and mounting components of the SIRIUS 8WD modular system.
Key specifications
Diameter: 70 mm
Operating voltage: 24 V AC/DC
Sound pressure level: 95 - 105 dB
Signal types: Continuous tone and modulated tone
Protection rating: IP65
Mounting system: Bayonet mechanism
The module is installed as part of a modular signalling column. Simply align the bayonet connection with the preceding module or base unit, insert, and twist to lock the component into place. Ensure that the electrical contacts are properly seated to maintain the IP65 seal. Once installed, the tone and volume can be adjusted according to the specific needs of the application using the integrated controls.
What to consider before purchase
Verify that your existing signalling column base supports the 70mm diameter standard.
Ensure the 24V AC/DC power supply is compatible with your current control cabinet configuration.
Confirm that the required sound pressure level is appropriate for the ambient noise level of the installation area.
For optimal performance and longevity, ensure the module is mounted in a position that allows for clear sound propagation and is protected from direct high-pressure water jets, despite its IP65 rating.

## FAQ

### How much does the Siemens 8WD4420-0EA Signalling Column Acoustic Module cost, and is it available for purchase?

The price is 54.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 14.07.2026 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 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

## Image

https://aio.lv/img/cache/product/12446358/68795502_large.webp