# Promet W0-5211-450 Miniature Limit Switch, 1NC 1NO, Plastic Housing, Roller Plunger

**URL:** https://aio.lv/en/product--promet-w0-5211-450--12463196
**Data updated:** 2026-05-18 09:44 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** Promet
**Manufacturer code:** W0-5211-450
**EAN:** 5900103004293
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 41.99 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 34.70 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--promet-w0-5211-450--12463196

## 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 Promet W0-5211-450 is a miniature limit switch designed for precise position sensing and control applications. It features a durable plastic housing and a roller plunger actuator. Equipped with 1NC (normally closed) and 1NO (normally open) contacts, this switch is ideal for industrial automation, machinery safety, and equipment monitoring. Its compact design allows for easy installation in space-constrained environments.

## Long description

The Promet W0-5211-450 is a high-precision miniature limit switch engineered for reliable position sensing and control in various industrial environments. Featuring a robust plastic housing and a responsive roller plunger actuator, this device ensures consistent performance in detecting the presence or absence of objects. Its compact form factor is specifically designed to fit into tight spaces where standard-sized switches would be impractical, making it a versatile component for modern automation systems.
Advantages
This limit switch offers exceptional durability and operational longevity due to its high-quality construction materials. The inclusion of both normally closed and normally open contacts provides flexibility in circuit design, allowing for seamless integration into diverse control architectures. Its lightweight plastic housing provides adequate protection against environmental factors while maintaining ease of installation. The roller plunger mechanism ensures smooth operation and precise actuation, reducing mechanical wear and enhancing the overall reliability of the sensing system.
Suitable for
Industrial automation and control systems
Machinery safety interlocks
Equipment position monitoring
Conveyor belt tracking
Automated assembly line processes
When it may not be suitable
This switch is not intended for use in environments with extreme temperatures, high-pressure washdowns, or exposure to harsh corrosive chemicals that could degrade the plastic housing. It is also not suitable for high-current power switching applications, as it is designed primarily for control signal circuits.
Key specifications
Contact configuration: 1NC (Normally Closed) and 1NO (Normally Open)
Actuator type: Roller plunger
Housing material: Durable plastic
Design: Miniature form factor
How to use
Installation should be performed by qualified personnel. Secure the switch to a stable mounting surface using the provided mounting holes, ensuring the roller plunger is correctly aligned with the moving part of the machinery. Connect the electrical wiring to the appropriate NC and NO terminals according to your control circuit requirements. Verify that the actuator is depressed sufficiently to trigger the switch but not over-traveled, which could cause mechanical damage. Regularly inspect the switch for debris or physical damage to ensure continued operational accuracy.
What to consider before purchase
Verify the physical space constraints of your installation site.
Ensure the electrical load of your application matches the switch ratings.
Check the alignment requirements for the roller plunger actuator.
Confirm the environmental conditions are compatible with the plastic housing.
Usage recommendations
For optimal performance and safety, ensure that the switch is protected from direct mechanical impact and that the electrical connections are properly insulated. Periodically test the switching function to confirm that the contacts are operating correctly within the control system.

## FAQ

### How much does the Promet W0-5211-450 Miniature Limit Switch cost, and is it available for purchase?

The price is 41.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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 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

https://aio.lv/img/cache/product/12463196/68764952_large.webp