# Relpol MR-EU3M1P Phase Monitoring Relay, 1P 5A 230/400V

**URL:** https://aio.lv/en/product--relpol-2612868--12456063
**Data updated:** 2026-05-18 09:40 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** Relpol
**Manufacturer code:** 2612868
**EAN:** 5900005013713
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 103.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 85.53 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--relpol-2612868--12456063

## 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 MR-EU3M1P is a professional phase monitoring relay designed to detect phase sequence, phase loss, and phase asymmetry in three-phase electrical systems. Featuring a 1P output and 5A contact rating, it operates at 230/400V. This device ensures reliable protection for industrial and commercial equipment by monitoring power quality and preventing damage caused by incorrect phase conditions.

## Long description

The Relpol MR-EU3M1P is a professional phase monitoring relay engineered to provide comprehensive protection for three-phase electrical systems. This device is specifically designed to monitor critical parameters including phase sequence, phase loss, and phase asymmetry, ensuring that industrial and commercial equipment operates within safe electrical parameters. By continuously analyzing the power supply, it helps prevent potential damage to motors and sensitive electronics caused by irregular phase conditions.
Advantages
The primary advantage of this relay is its high reliability in maintaining system integrity. It offers precise detection capabilities that allow for immediate response to power quality issues, thereby reducing downtime and maintenance costs. Its compact design and robust construction make it an ideal choice for integration into various control panels and electrical distribution systems, providing a consistent and stable monitoring solution for demanding environments.
Suitable for
Industrial motor protection
Commercial HVAC systems
Electrical distribution boards
Automation and control panels
This relay may not be suitable for single-phase applications or systems operating outside the specified voltage range of 230/400V. It is also not intended for use in environments with extreme moisture or high levels of conductive dust unless housed in an appropriate protective enclosure.
Key specifications
Monitoring functions: Phase sequence, phase loss, and phase asymmetry
Output contact: 1P (single pole)
Contact rating: 5A
Operating voltage: 230/400V AC
Installation should be performed by a qualified professional in accordance with local electrical regulations. The device is typically mounted on a standard DIN rail within a control cabinet. Ensure that all wiring connections are secure and that the voltage inputs match the system requirements before energizing the circuit. Once installed, the relay operates automatically to monitor the phase conditions of the connected power supply.
What to consider before purchase
Verify that your system voltage matches the 230/400V rating
Ensure the 5A contact rating is sufficient for your control circuit requirements
Confirm the physical space available in your electrical enclosure for DIN rail mounting
Usage recommendations: Regularly inspect the relay for any signs of physical damage or loose connections. It is recommended to perform periodic testing of the monitoring functions to ensure the protection system remains fully operational and responsive to phase faults.

## FAQ

### How much does the Relpol MR-EU3M1P Phase Monitoring Relay cost, and is it available for purchase?

The price is 103.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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, Installment. All transactions are 100% secure and encrypted.

### Can Relpol MR-EU3M1P Phase 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 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

https://aio.lv/img/cache/product/12456063/68758300_large.webp