# Promet W0-NEF30-K 4X C 30mm Red Momentary Push Button Switch 4NO

**URL:** https://aio.lv/en/product--promet-w0-nef30-k-4x-c--12585699
**Data updated:** 2026-07-19 04:07 (EEST)
**Category:** Other goods
**Manufacturer:** Promet
**Manufacturer code:** W0-NEF30-K 4X C
**EAN:** 5900103062484
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Promet W0-NEF30-K 4X C is a 30mm red momentary push button switch designed for industrial control panels. It features a spring-return mechanism and is equipped with 4 normally open (4NO) contacts. This robust control component is ideal for automation systems, machinery operation, and electrical control circuits requiring reliable manual input.

## Long description

The Promet W0-NEF30-K 4X C is a high-quality 30mm red momentary push button switch engineered for demanding industrial environments. This control component features a reliable spring-return mechanism, ensuring the button returns to its original position immediately after release. Designed for integration into control panels and automation systems, it provides a robust solution for manual electrical signaling and machine operation.
Advantages
This push button switch offers exceptional durability and consistent performance in industrial settings. The 4NO contact configuration allows for versatile circuit control, enabling the simultaneous activation of multiple electrical paths. Its 30mm mounting diameter is a standard size, facilitating easy installation and replacement in existing control panels. The red color provides high visibility, making it an ideal choice for critical control functions where clear identification is necessary.
Suitable for
Industrial control panels and automation systems
Manual operation of machinery and equipment
Electrical control circuits requiring momentary input
Emergency or auxiliary signaling functions
This switch may not be suitable for applications requiring a maintained or latching contact state, as the spring-return mechanism ensures it only remains active while pressed. It is also not intended for high-power direct load switching without appropriate contactors or relays.
Key specifications
Mounting diameter: 30mm
Contact configuration: 4 Normally Open (4NO)
Operation type: Momentary (spring-return)
Color: Red
To install the switch, insert the actuator through the 30mm panel cutout and secure it using the provided locking nut. Connect the electrical wiring to the 4NO contact blocks according to your circuit diagram. Ensure that all connections are tightened securely to prevent loose contacts during operation.
What to consider before purchase
Verify that the 30mm mounting hole matches your panel requirements
Ensure the 4NO contact configuration meets your circuit logic needs
Confirm that a momentary action is appropriate for your specific application
For optimal longevity and safety, ensure the switch is installed in an environment protected from excessive moisture or corrosive substances, and perform periodic inspections of the electrical connections.

## FAQ

### 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 Promet 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 Promet 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

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