# Siemens 3LD2003-1TP53 3-Pole Main and Emergency Disconnect Switch with 1NO+1NC Auxiliary Contacts

**URL:** https://aio.lv/en/product--siemens-3ld20031tp53--1842348
**Data updated:** 2026-05-18 02:48 (EEST)
**Category:** Power Sockets
**Manufacturer:** Siemens
**Manufacturer code:** 3LD20031TP53
**EAN:** 4011209519152
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 146.99 €
**Prices and availability valid until:** 2026-08-08 23:59
**Price without VAT (21%):** 121.48 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3ld20031tp53--1842348

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.07.2026 | free |
| Courier delivery to door | 03.08.2026 | 53.99 EUR |

## Summary description

The Siemens 3LD2003-1TP53 is a robust 3-pole main and emergency disconnect switch designed for safe power isolation. It features integrated 1NO+1NC auxiliary contacts and is rated for 7.5kW at AC-23 and 5.5kW at AC-3. This reliable industrial-grade switch ensures secure operation in electrical distribution systems, providing effective control and protection for machinery and equipment in various industrial applications.

## Long description

The Siemens 3LD2003-1TP53 is a high-performance 3-pole main and emergency disconnect switch engineered for reliable power isolation in industrial environments. This device serves as a critical safety component, allowing for the secure manual disconnection of electrical circuits during maintenance or emergency situations. Built to rigorous industrial standards, it provides robust control and protection for machinery, ensuring that power supply can be effectively interrupted to prevent accidental activation.
Advantages
This disconnect switch offers exceptional durability and operational safety, making it a dependable choice for demanding electrical distribution systems. The inclusion of integrated 1NO+1NC auxiliary contacts allows for enhanced monitoring and signaling capabilities, providing feedback on the switch position to control systems. Its compact design and efficient power handling, rated for 7.5kW at AC-23 and 5.5kW at AC-3, ensure that it integrates seamlessly into existing control panels while maintaining high performance under load.
Suitable for
Industrial machinery power isolation
Emergency stop applications in manufacturing
Electrical distribution panel maintenance
Control circuit signaling
This switch may not be suitable for high-voltage power distribution networks exceeding its rated operational capacity. It is also not intended for outdoor environments without an appropriate protective enclosure, as it is designed primarily for installation within controlled industrial cabinets or panels.
Key specifications
Number of poles: 3
Auxiliary contacts: 1NO + 1NC
Power rating at AC-23: 7.5kW
Power rating at AC-3: 5.5kW
Weight: 0.226 kg
The switch is designed for professional installation within an electrical cabinet or enclosure. It should be mounted securely onto a standard DIN rail or base plate depending on the specific configuration. Ensure that all electrical connections are tightened to the manufacturer's specified torque settings to prevent overheating or poor contact. The auxiliary contacts should be wired according to the control circuit requirements to ensure proper signaling of the switch status.
What to consider before purchase
Verify that the power ratings match your specific motor or circuit load requirements.
Ensure the installation space within your enclosure is sufficient for the device dimensions.
Confirm that the auxiliary contact configuration meets your monitoring or interlocking needs.
Always ensure that the power supply is completely disconnected before attempting to install or service the switch. Regular inspections of the terminal connections are recommended to maintain long-term operational safety and performance.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.226 kg |

### Design

| Feature | Value |
|---|---|
| Product colour | Multicolour |

## FAQ

### How much does the Siemens 3LD2003-1TP53 Main and Emergency Disconnect Switch cost, and is it available for purchase?

The price is 146.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 29.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Siemens 3LD2003-1TP53 Main and Emergency Disconnect Switch be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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/1842348/47656450_large.webp