# Siemens 3RQ4018-2AM08-0AA0 Output Coupler, 24V DC, 1CO Contact, Push-In Terminal

**URL:** https://aio.lv/en/product--siemens-3rq4018-2am08-0aa0--12456057
**Data updated:** 2026-05-18 09:40 (EEST)
**Category:** Control Systems
**Manufacturer:** Siemens
**Manufacturer code:** 3RQ4018-2AM08-0AA0
**EAN:** 4047621118543
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 23.99 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 19.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rq4018-2am08-0aa0--12456057

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.07.2026 | free |
| Pickup points | 24.07.2026 | 1.89 EUR |
| Courier delivery to door | 24.07.2026 | 4.99 EUR |

## Summary description

The Siemens 3RQ4018-2AM08-0AA0 is a high-quality output coupler designed for reliable signal isolation and switching in industrial automation systems. It operates at 24V DC and features a 1CO (changeover) contact configuration with a thermal current of 6A. Equipped with convenient Push-In terminals, this compact relay module ensures fast and secure wiring, making it an ideal solution for control cabinet applications requiring efficient signal coupling and robust performance.

## Long description

The Siemens output coupler is a high-performance relay module engineered for reliable signal isolation and switching within industrial automation environments. This compact device facilitates seamless communication between control systems and field devices, ensuring stable operation in demanding control cabinet applications. With its integrated relay design and efficient 24V DC operation, it provides a robust solution for managing electrical signals with precision and safety.
Advantages
This output coupler stands out due to its space-saving design, featuring a slim 6.2 mm width that allows for high-density mounting in control cabinets. The inclusion of Push-In terminal technology significantly reduces installation time by allowing for tool-free, secure wire connections that are resistant to vibration. Furthermore, the device offers a wide operating voltage range, ensuring consistent performance even when supply voltages fluctuate, while the 1CO contact configuration provides versatile switching options for various control logic requirements.
Suitable for
Industrial automation and control systems
Signal isolation between controllers and actuators
Control cabinet wiring and space-constrained installations
Switching low-to-medium power loads in industrial processes
When it may not be suitable
This device is not intended for switching high-power industrial loads that exceed its thermal current rating of 6A. It is also not suitable for environments requiring specialized protection against extreme moisture, dust, or corrosive gases without additional housing.
Key specifications
Operating voltage: 24V DC (0.7-1.25 x Us)
Contact configuration: 1 change-over (1CO) contact
Thermal current: 6A
Connection type: Push-In (spring-loaded) terminals
Module width: 6.2 mm
How to use
To install the output coupler, mount the unit onto a standard DIN rail within your control cabinet. Connect the 24V DC control signal to the designated input terminals and wire your load to the 1CO contact terminals using the Push-In connection points. Ensure that the wire gauge used is compatible with the terminal specifications to maintain a secure electrical connection. Once wired, verify the signal path and ensure the control voltage is within the specified operating range before energizing the system.
What to consider before purchase
Verify that the 24V DC control voltage matches your existing system architecture.
Ensure the 6A thermal current rating is sufficient for your specific load requirements.
Confirm that the 6.2 mm width fits within your current DIN rail layout.
Check that your wiring infrastructure supports Push-In terminal connections.
Usage recommendations: Regularly inspect the terminal connections for signs of wear or loosening, especially in high-vibration environments. Ensure the device is kept free of debris to maintain optimal thermal dissipation.

## FAQ

### How much does the Siemens 3RQ4018-2AM08-0AA0 Output Coupler cost, and is it available for purchase?

The price is 23.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 15 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 21.07.2026 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

## Image

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