# Relpol RSR52-24A40 Single-Phase Solid State Relay 40A 240V AC

**URL:** https://aio.lv/en/product--relpol-2615925--12466466
**Data updated:** 2026-05-18 09:30 (EEST)
**Category:** Control Systems
**Manufacturer:** Relpol
**Manufacturer code:** 2615925
**EAN:** 5900005260957
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 31.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 26.02 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--relpol-2615925--12466466

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The Relpol RSR52-24A40 is a high-performance single-phase solid state relay designed for reliable switching of AC loads. It features a control voltage range of 90-280V AC and a rated load current of 40A at 240V AC. This semiconductor relay is ideal for industrial automation, heating control, and lighting systems, offering silent operation, long service life, and high switching frequency compared to traditional electromechanical relays.

## Long description

The Relpol RSR52-24A40 is a high-performance single-phase solid state relay engineered for the precise and reliable switching of AC loads. By utilizing advanced semiconductor technology, this device eliminates the mechanical wear associated with traditional relays, ensuring a significantly longer operational lifespan and silent switching performance. It is designed to handle demanding industrial environments where consistent performance and high switching frequencies are required.
Advantages
This solid state relay offers superior reliability due to the absence of moving parts, which prevents contact arcing and mechanical fatigue. Its silent operation makes it an excellent choice for noise-sensitive environments. Furthermore, the device provides high-speed switching capabilities, allowing for precise control over heating elements and lighting systems. The robust construction ensures stable performance even under continuous load conditions, contributing to reduced maintenance requirements in automated systems.
Suitable for
Industrial automation and process control
Heating element and furnace temperature regulation
Lighting system management
Motor control applications requiring frequent switching
This relay may not be suitable for applications requiring complete galvanic isolation in the event of a semiconductor failure, as solid state relays can fail in a short-circuit state. It is also not intended for switching DC loads, as it is specifically designed for AC voltage applications.
Key specifications
Rated load current: 40A
Load voltage range: 240V AC
Control voltage range: 90-280V AC
Switching type: Single-phase AC
Technology: Semiconductor solid state
To use the Relpol RSR52-24A40, ensure the device is mounted on a suitable heat sink to dissipate heat generated during operation, as thermal management is critical for semiconductor longevity. Connect the control signal to the input terminals and the load circuit in series with the output terminals, ensuring that the voltage and current ratings are strictly observed to prevent damage to the relay.
What to consider before purchase
Verify that your control signal voltage falls within the 90-280V AC range.
Ensure the load current does not exceed the 40A rating.
Confirm that a compatible heat sink is available for your installation.
Check the ambient temperature of the installation site to ensure proper thermal dissipation.
Always ensure that the power supply is disconnected before performing any wiring or maintenance on the relay to prevent electrical shock. Proper thermal paste application between the relay and the heat sink is recommended to maximize heat transfer efficiency.

## FAQ

### How much does the Relpol RSR52-24A40 Single-Phase Solid State Relay cost, and is it available for purchase?

The price is 31.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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 09.07.2026 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 Relpol 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 Relpol 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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