# Promet W0-NEF30-K4X G Control Pushbutton 30mm Yellow 4NO Momentary

**URL:** https://aio.lv/en/product--promet-w0-nef30-k-4x-g--12587469
**Data updated:** 2026-07-21 04:04 (EEST)
**Category:** Other goods
**Manufacturer:** Promet
**Manufacturer code:** W0-NEF30-K 4X G
**EAN:** 5900103062491
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Promet W0-NEF30-K4X G is a 30mm industrial control pushbutton featuring a yellow actuator and a 4NO contact configuration. Designed for reliable operation in control panels and automation systems, this momentary switch automatically returns to its initial position after release. It is built for durability and precise electrical switching in demanding industrial environments.

## Long description

The Promet W0-NEF30-K4X G is a professional-grade 30mm industrial control pushbutton designed for integration into automation systems and control panels. Featuring a distinct yellow actuator, this momentary switch is engineered for high-visibility operation and precise electrical control. The unit is equipped with a 4NO (normally open) contact configuration, ensuring reliable signal transmission in demanding industrial environments where durability and consistent performance are required.
Advantages
This control pushbutton offers exceptional mechanical reliability due to its robust construction, which is specifically tailored for frequent use in industrial settings. The momentary action mechanism ensures that the switch automatically returns to its initial state once pressure is released, providing a safe and predictable control interface. Its 30mm mounting diameter is a standard size, allowing for easy installation and replacement in existing control panels. The 4NO contact arrangement provides multiple switching paths, enabling complex control logic within a single compact device.
Suitable for
Industrial control panels and machinery interfaces
Automation and process control systems
Emergency stop or start-stop signaling applications
Electrical distribution boards
This device may not be suitable for applications requiring a maintained or latching switch action, as it is designed exclusively for momentary operation. It is also not intended for high-power direct load switching without appropriate contactors or relays, and it should not be used in environments exceeding its specified ingress protection or temperature ratings.
Key specifications
Mounting diameter: 30mm
Actuator color: Yellow
Contact configuration: 4NO (Normally Open)
Switching type: Momentary
Application: Industrial control systems
Installation should be performed by qualified personnel in accordance with local electrical regulations. Ensure the control panel cutout is exactly 30mm to guarantee a secure fit. Connect the wiring to the 4NO terminals, verifying that the circuit load does not exceed the rated capacity of the contacts. Once installed, test the momentary action to ensure the actuator returns smoothly to the neutral position after every press.
What to consider before purchase
Verify the required mounting hole diameter of your control panel
Ensure the 4NO contact configuration meets your circuit requirements
Confirm that a momentary (non-latching) switch is appropriate for your specific control logic
Check the environmental conditions of the installation site
For optimal longevity and performance, keep the actuator surface clean and free of debris. Regularly inspect the electrical connections for tightness and ensure the switch mechanism is not obstructed by external components.

## 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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