# Relpol RPB-2PSM-UNI Sequential Bistable Relay with Memory, 2P 16A, 12-240V AC/DC

**URL:** https://aio.lv/en/product--relpol-864392--12459116
**Data updated:** 2026-05-18 09:28 (EEST)
**Category:** Power Sockets
**Manufacturer:** Relpol
**Manufacturer code:** 864392
**EAN:** 5900005263125
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 37.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 31.40 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--relpol-864392--12459116

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The Relpol RPB-2PSM-UNI is a sequential bistable relay featuring integrated memory, designed for reliable switching in electrical installations. It supports a wide voltage range of 12-240V AC/DC and features a 2P contact configuration with a 16A current rating. This relay is ideal for lighting control systems and automation, ensuring state retention after power loss and sequential operation for complex switching tasks.

## Long description

The Relpol RPB-2PSM-UNI is a high-performance sequential bistable relay equipped with integrated memory, engineered for precise switching in diverse electrical installations. This device is designed to maintain its switching state even after a power supply interruption, ensuring consistent operation in automated systems. With a versatile input voltage range of 12-240V AC/DC and a robust 2P contact configuration rated for 16A, it provides a reliable solution for modern electrical control requirements.
Advantages
The primary benefit of this relay is its sequential operation combined with state memory, which allows for complex switching sequences without the need for additional logic controllers. The wide supply voltage range ensures compatibility with various industrial and residential power systems, simplifying inventory and installation. Its 16A contact rating makes it suitable for handling significant electrical loads, while the bistable mechanism ensures energy efficiency by only consuming power during the switching pulse.
Suitable for
Lighting control systems in residential and commercial buildings
Automation of sequential switching tasks
Industrial control panels requiring state retention
Energy-efficient electrical load management
This relay may not be suitable for applications requiring high-frequency switching or rapid cycling, as the mechanical nature of the bistable relay is optimized for occasional state changes rather than continuous high-speed operation. It is also not intended for use in environments with extreme vibration or high levels of electromagnetic interference that could affect the internal memory mechanism.
Key specifications
Contact configuration: 2P (Double Pole)
Rated current: 16A
Supply voltage range: 12-240V AC/DC
Functionality: Sequential bistable with memory
To use the Relpol RPB-2PSM-UNI, connect the control signal to the designated input terminals and the load to the output contacts according to the wiring diagram provided on the device housing. Ensure that the supply voltage is within the specified 12-240V AC/DC range before activation. The relay will toggle its state upon receiving a control pulse, and the internal memory will store the current position, allowing the device to resume the correct state immediately upon power restoration.
What to consider before purchase
Verify that the 16A current rating is sufficient for your specific load requirements
Ensure the control voltage source is compatible with the 12-240V AC/DC input
Confirm that the 2P contact configuration meets your circuit design needs
For optimal performance and longevity, ensure that the relay is installed in a clean, dry environment within a standard electrical distribution board or enclosure. Regularly inspect the terminal connections to ensure they remain tight and free from oxidation.

## FAQ

### How much does the Relpol RPB-2PSM-UNI Sequential Bistable Relay cost, and is it available for purchase?

The price is 37.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 21 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 06.07.2026 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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