# Eaton EMR6-W400-M-1 Phase Monitoring Relay, Sequence, Loss and Asymmetry, Over/Under Voltage Control, 400V AC, 2P, 0.1-30s

**URL:** https://aio.lv/en/product--eaton-184778--12454268
**Data updated:** 2026-05-18 02:39 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** EATON
**Manufacturer code:** 184778
**EAN:** 4015081788149
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 213.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 176.44 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--eaton-184778--12454268

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The Eaton EMR6-W400-M-1 is a multifunctional phase monitoring relay designed for industrial electrical systems. It provides comprehensive protection by monitoring phase sequence, phase loss, and phase asymmetry, as well as overvoltage and undervoltage conditions. Featuring a 400V AC operating voltage and an adjustable time delay of 0.1 to 30 seconds, this 2-pole relay ensures reliable equipment safety and operational stability in power distribution networks.

## Long description

The Eaton EMR6-W400-M-1 is a high-performance phase monitoring relay engineered to safeguard industrial electrical installations. This device provides continuous oversight of critical power parameters, ensuring that three-phase systems operate within safe limits. By detecting irregularities such as phase sequence errors, phase loss, and asymmetry, as well as monitoring for overvoltage and undervoltage conditions, it prevents potential damage to motors and sensitive electronic equipment.
Advantages
This monitoring relay offers a robust solution for maintaining electrical system integrity. Its multifunctional design reduces the need for multiple individual monitoring components, saving space in control cabinets. The adjustable time delay feature allows for precise configuration, preventing nuisance tripping during minor, temporary voltage fluctuations. With its reliable 400V AC operation, it provides consistent protection that enhances the longevity and operational reliability of connected machinery.
Suitable for
Industrial motor protection systems
Power distribution networks
HVAC control panels
Automated manufacturing equipment
Pump and compressor control circuits
This relay may not be suitable for applications requiring monitoring of single-phase systems or voltages outside the specified 400V AC range. It is also not intended for use in high-frequency power electronics or environments where extreme vibration or moisture exceeds the device's rated ingress protection levels.
Key specifications
Operating voltage: 400V AC
Monitoring functions: Phase sequence, phase loss, phase asymmetry, overvoltage, and undervoltage
Time delay range: 0.1 to 30 seconds
Number of poles: 2P
Mounting type: DIN rail
The relay is installed by mounting it onto a standard DIN rail within an electrical enclosure. Wiring should be performed by a qualified professional in accordance with the provided terminal diagram. Once installed, the front-mounted dials allow for the adjustment of the time delay and voltage thresholds to meet the specific requirements of the connected load.
What to consider before purchase
Verify that your system voltage matches the 400V AC rating.
Ensure the DIN rail space is sufficient for the relay dimensions.
Confirm that the monitoring functions cover all required safety parameters for your specific equipment.
For optimal performance, ensure that all terminal connections are tightened to the manufacturer's specified torque settings and that the device is protected from excessive heat or dust within the control cabinet.

## FAQ

### How much does the Eaton EMR6-W400-M-1 Phase Monitoring Relay cost, and is it available for purchase?

The price is 213.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 14.07.2026 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 Eaton EMR6-W400-M-1 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 EATON 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 EATON 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/12454268/68756741_large.webp