# Eti-Polam DZN-1 3-Phase Voltage Loss, Asymmetry and Phase Sequence Detector 8A 170-190V

**URL:** https://aio.lv/en/product--eti-polam-002470285--12461771
**Data updated:** 2026-05-18 09:32 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** Eti-Polam
**Manufacturer code:** 002470285
**EAN:** 3838895609353
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 71.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 59.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--eti-polam-002470285--12461771

## 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 Eti-Polam DZN-1 is a 3-phase monitoring device designed to detect voltage loss, phase asymmetry, and incorrect phase sequence. Featuring an 8A output and an operating voltage range of 170-190V, this relay ensures reliable protection for industrial and residential electrical systems. It is an essential component for preventing equipment damage caused by power supply irregularities in 3-phase networks.

## Long description

The Eti-Polam DZN-1 is a precision-engineered 3-phase monitoring relay designed to safeguard electrical systems by detecting critical power supply irregularities. This device continuously monitors the network for voltage loss, phase asymmetry, and incorrect phase sequence, providing a robust defense against potential equipment damage. With an 8A output capacity and a specific operating voltage range of 170-190V, it serves as a reliable solution for maintaining the integrity of industrial and residential 3-phase electrical installations.
Advantages
The primary benefit of the Eti-Polam DZN-1 is its ability to provide real-time protection against common electrical faults that can lead to costly downtime or hardware failure. By monitoring phase sequence and symmetry, it ensures that motors and sensitive electronic equipment operate under optimal conditions. Its compact design allows for efficient integration into existing electrical panels, while the high-quality construction ensures long-term operational stability and consistent performance in demanding environments.
Suitable for
Industrial motor protection
Residential 3-phase power monitoring
HVAC system control panels
Automation and control cabinets
Preventing damage from phase failure
When it may not be suitable
This device is specifically calibrated for a voltage range of 170-190V. It is not suitable for standard 400V industrial networks or systems operating outside of this defined voltage window, as it will not function correctly or may fail to provide the intended protection.
Key specifications
Monitoring functions: Voltage loss, phase asymmetry, phase sequence
Output current: 8A
Operating voltage range: 170-190V
Phase type: 3-phase
How to use
The device should be installed by a qualified electrician within a standard distribution board or control cabinet. Ensure that the input terminals are connected to the 3-phase supply lines according to the wiring diagram provided on the housing. Once installed, the device automatically monitors the incoming power. If the monitored parameters fall outside the set limits, the internal relay will trigger to disconnect the load or signal an alarm, depending on the specific configuration of your electrical system.
What to consider before purchase
Verify that your network voltage matches the 170-190V operating range
Ensure the 8A output current is sufficient for your control circuit requirements
Confirm compatibility with your existing 3-phase electrical infrastructure
Usage recommendations
Regularly inspect the installation to ensure all terminal connections remain tight and free from oxidation. Periodically verify the operational status of the relay to ensure it continues to provide the necessary protection for your connected equipment.

## FAQ

### How much does the Eti-Polam DZN-1 3-Phase Voltage and Phase Sequence Detector cost, and is it available for purchase?

The price is 71.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 Eti-Polam DZN-1 3-Phase Voltage and Phase Sequence Detector 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 Eti-Polam 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 Eti-Polam 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/12461771/68763670_large.webp