# Siemens 3LD2254-0TK51 3-Pole Main and Emergency Switch, 32A, 690V, Red/Yellow

**URL:** https://aio.lv/en/product--siemens-3ld22540tk51--1840477
**Data updated:** 2026-05-22 07:20 (EEST)
**Category:** Power Sockets
**Manufacturer:** Siemens
**Manufacturer code:** 3LD22540TK51
**EAN:** 4011209403239
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 44.99 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 37.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3ld22540tk51--1840477

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.89 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

The Siemens 3LD2254-0TK51 is a robust 3-pole main and emergency switch designed for safe power disconnection. It features a 32A nominal current, 690V operating voltage, and a 640A breaking capacity. With its distinctive red and yellow handle, it is ideal for industrial safety applications, ensuring reliable circuit isolation. The unit is designed for panel mounting and operates efficiently within a 50-60 Hz frequency range.

## Long description

The Siemens 3LD2254-0TK51 is a high-performance 3-pole main and emergency switch engineered to provide secure power disconnection in demanding industrial environments. With a nominal current rating of 32A and an operating voltage of 690V, this device ensures reliable circuit isolation for machinery and electrical distribution systems. Its design prioritizes safety and durability, featuring a highly visible red and yellow rotary actuator that allows for quick identification and operation during emergency situations.
Advantages
This switch offers exceptional reliability and robust construction, making it a dependable choice for critical safety applications. The unit is designed for efficient panel mounting, allowing for seamless integration into existing control cabinets and electrical panels. Its high breaking capacity ensures that it can safely interrupt electrical circuits under load, providing essential protection for both equipment and personnel. The ergonomic rotary handle design facilitates intuitive operation, while the standardized mounting dimensions simplify the installation process for electrical professionals.
Suitable for
Industrial machinery power disconnection
Emergency stop applications in manufacturing plants
Electrical distribution panel isolation
Maintenance and repair safety procedures
When it may not be suitable
This switch is not intended for use in environments exceeding its specified voltage or current ratings, as this could lead to equipment failure or safety hazards. It is also not suitable for outdoor installations without an appropriate protective enclosure, as it is designed for panel mounting within controlled environments.
Key specifications
Number of poles: 3
Nominal current: 32A
Operating voltage: 690V
Mounting type: Front/Central-hole mounting
Actuator type: Rotary, red/yellow
Frequency range: 50-60 Hz
How to use
The Siemens 3LD2254-0TK51 is designed for installation by qualified personnel. It should be mounted securely onto a panel or control cabinet door using the provided central-hole mounting configuration. Once installed, the rotary actuator can be turned to the ON or OFF position to control the power supply to the connected equipment. Ensure that all electrical connections are tightened to the manufacturer's specified torque settings to prevent overheating or loose contacts.
What to consider before purchase
Verify that the 32A current rating is sufficient for your specific load requirements.
Ensure the panel space is compatible with the central-hole mounting dimensions.
Confirm that the operating voltage of your system does not exceed 690V.
Check if the red/yellow color scheme meets your facility's safety standards for emergency switches.
Usage recommendations
Regularly inspect the switch for any signs of physical damage or wear, and perform periodic testing of the switching mechanism to ensure it operates smoothly and reliably. Always follow local electrical codes and safety regulations during installation and maintenance.

## Specifications

| Feature | Value |
|---|---|
| Nominal current output | 32 A |
| AC input frequency | 50 - 60 |
| Breaking capacity | 640 A |
| Number of modules | 1 |
| Coil voltage | 690 V |
| Coil voltage (min) | 400 V |
| Coil voltage (max) | 6000 V |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.223 kg |
| Height | 83 mm |
| Width | 67 mm |
| Depth | 116.5 mm |

### Features

| Feature | Value |
|---|---|
| Number of poles | 3P |

### Design

| Feature | Value |
|---|---|
| Certification | CSA, UL, VDE, EAC, CE, LRS |
| Product colour | Red, Yellow |

## FAQ

### How much does the Siemens 3LD2254-0TK51 3-Pole Main and Emergency Switch cost, and is it available for purchase?

The price is 44.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 22.07.2026 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/1840477/58101302_large.webp