# Siemens 3RS2500-1AW30 Temperature Monitoring Relay 24-240V AC/DC

**URL:** https://aio.lv/en/product--siemens-3rs2500-1aw30--12461582
**Data updated:** 2026-05-18 09:35 (EEST)
**Category:** Power Extension Cords & Surge Protectors
**Manufacturer:** Siemens
**Manufacturer code:** 3RS2500-1AW30
**EAN:** 4047621058788
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 145.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 120.24 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rs2500-1aw30--12461582

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

The Siemens 3RS2500-1AW30 is a professional temperature monitoring relay designed for precise thermal management in industrial automation systems. It operates with a wide voltage range of 24-240V AC/DC, ensuring reliable performance in various electrical configurations. This device is essential for protecting equipment from overheating by monitoring temperature thresholds and triggering safety responses in critical control circuits.

## Long description

The Siemens 3RS2500-1AW30 is a professional temperature monitoring relay engineered for precise thermal management within industrial automation environments. This device is designed to measure temperatures in solid, liquid, and gaseous media, providing a reliable solution for process control and the protection of motors and plants against overheating. Operating across a versatile voltage range of 24-240V AC/DC, it integrates seamlessly into diverse electrical configurations, ensuring consistent performance and safety in critical control circuits.
Advantages
This temperature monitoring relay offers exceptional flexibility by supporting various sensor types, including Pt100 and Pt1000 resistance sensors, as well as type J and type K thermocouples. The device features an intuitive design that allows for straightforward operation using rotary and slide switches, enabling users to adjust settings such as hysteresis with ease. Its compact 22.5 mm width saves valuable space in control cabinets, while the quiescent current principle ensures reliable monitoring. By providing a dedicated change-over contact, the relay facilitates immediate safety responses when temperature thresholds are exceeded or undershot, effectively preventing equipment damage.
Suitable for
Monitoring temperatures in industrial processes
Protecting motors and machinery from excessive heat
Thermal management of solid, liquid, and gaseous media
Integration into automated control systems
When it may not be suitable
This relay is not intended for applications requiring multi-channel monitoring or complex digital communication protocols like IO-Link, as this specific model is designed for single threshold value monitoring. It may also not be suitable for environments where extreme vibration or non-standard electrical interference exceeds the specified operational limits of the device.
Key specifications
Voltage range: 24-240V AC/DC
Sensor compatibility: Pt100, Pt1000, Thermocouple J, Thermocouple K
Width: 22.5 mm
Output: 1 change-over contact
Functionality: 1 threshold value, overshoot and undershoot monitoring
Connection type: Screw terminal
How to use
Installation should be performed by qualified personnel in accordance with local electrical standards. The relay is designed for mounting on standard DIN rails. Connect the appropriate temperature sensor to the designated terminals and wire the change-over contact into your control circuit to trigger the desired safety action. Use the integrated rotary and slide switches on the front panel to configure the required temperature thresholds and hysteresis settings according to your specific application requirements.
What to consider before purchase
Verify that your temperature sensor type is compatible with the relay
Ensure the control cabinet has sufficient space for a 22.5 mm wide module
Confirm that the power supply voltage matches the 24-240V AC/DC range
Check if your application requires a single threshold or if a more complex monitoring system is needed
Usage recommendations: Regularly inspect the screw terminal connections to ensure they remain tight and free from corrosion. Periodically test the threshold settings to confirm that the relay triggers the safety response as expected during routine maintenance cycles.

## FAQ

### How much does the Siemens 3RS2500-1AW30 Temperature Monitoring Relay cost, and is it available for purchase?

The price is 145.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 15.07.2026 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 3RS2500-1AW30 Temperature Monitoring Relay 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

## Image

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