# Siemens 3RT1066-6AP36 Power Contactor 300A 3-Pole 230V AC

**URL:** https://aio.lv/en/product--siemens-3rt1066-6ap36--12462981
**Data updated:** 2026-05-18 09:28 (EEST)
**Category:** Control Systems
**Manufacturer:** Siemens
**Manufacturer code:** 3RT1066-6AP36
**EAN:** 4011209508132
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 030.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 852.06 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rt1066-6ap36--12462981

## 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 Siemens 3RT1066-6AP36 is a high-performance 3-pole power contactor designed for reliable industrial switching applications. It features a 300A current rating and operates on a 230V AC control voltage at 50-60 Hz. Certified with CE standards, this robust component is engineered for demanding electrical systems, ensuring efficient performance and durability in various automation and power distribution setups.

## Long description

The Siemens 3RT1066-6AP36 is a high-performance 3-pole power contactor engineered for demanding industrial switching applications. Designed to handle significant electrical loads, this contactor provides reliable operation in power distribution and automation systems. With a robust construction and a current rating of 300A, it ensures consistent performance in heavy-duty environments, supported by a 230V AC control voltage that operates efficiently across 50-60 Hz frequencies.
Advantages
This power contactor offers exceptional durability and operational stability, making it a dependable choice for critical electrical infrastructure. Its design facilitates efficient power management, while the inclusion of auxiliary contacts provides flexibility for control and monitoring circuits. The unit is built to withstand rigorous industrial conditions, ensuring long-term reliability and reduced maintenance requirements in complex electrical setups.
Suitable for
Industrial motor control systems
Power distribution panels
Automation and control cabinets
Heavy-duty switching applications
This device may not be suitable for low-voltage residential applications or environments where space is extremely limited, as its physical dimensions and high current capacity are specifically tailored for industrial-grade electrical cabinets and heavy machinery.
Key specifications
Current rating: 300A
Number of poles: 3
Control voltage: 220-240V AC/DC
Frequency: 50-60 Hz
Auxiliary contacts: 2 NO + 2 NC
Size: S10
Connection type: Busbar connections with screw terminals
Dimensions: 202 x 145 x 210 mm
How to use
The contactor should be installed by qualified personnel within a suitable electrical enclosure. Connections are made via the integrated busbar terminals, ensuring all cables are tightened to the specified torque to prevent overheating. The control circuit must be connected to the designated terminals to enable the switching function. Always ensure the power supply matches the rated control voltage before activation.
What to consider before purchase
Verify that the 300A rating meets your specific load requirements.
Ensure the control voltage of 220-240V matches your existing control system.
Check the physical dimensions to ensure it fits within your electrical cabinet.
Confirm that the auxiliary contact configuration (2 NO + 2 NC) is sufficient for your control logic.
Usage recommendations
Regularly inspect the terminal connections for tightness and check for any signs of wear or debris accumulation to maintain optimal electrical conductivity and safety.

## Specifications

| Feature | Value |
|---|---|
| Dimensions (WxDxH) | 202 x 145 x 210 |
| Certification | CE |
| Package weight | 6565 g |
| Operating temperature (T-T) | -25 - 60 |
| Product colour | Blue, Silver |
| Country of origin | Germany |
| Package depth | 196 mm |
| Package height | 234 mm |
| Package width | 265 mm |
| AC input frequency | 50 - 60 |
| AC input voltage | 220 - 240 |

## FAQ

### How much does the Siemens 3RT1066-6AP36 Power Contactor 300A cost, and is it available for purchase?

The price is 1,030.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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, Installment, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can Siemens 3RT1066-6AP36 Power Contactor 300A 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

### Where can I download the instructions for Siemens 3RT1066-6AP36 Power Contactor 300A?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/12462981/68769938_large.webp