# Residual Current Relay ETI KZS 2 M C 25 A - 25 A, Type C, 2-pole

**URL:** https://aio.lv/en/product--eti-002173226--4909598
**Data updated:** 2026-04-27 22:26 (EEST)
**Category:** Power Sockets
**Manufacturer:** ETI
**Manufacturer code:** 002173226
**EAN:** 3838895278634
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 54.49 €
**Prices and availability valid until:** 2026-08-03 23:59
**Price without VAT (21%):** 45.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--eti-002173226--4909598

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

ETI KZS 2 M C 25 A is a residual (current leakage) relay designed to monitor and protect electrical circuits by detecting earth leakage currents. Rated for 25 A with Type C tripping characteristic and 2-pole configuration, it is suitable for residential and light commercial installations to enhance electrical safety and prevent fire or shock hazards.

## Long description

ETI KZS 2 M C 25 A is a residual current relay designed to detect earth leakage currents and trigger disconnection to reduce risk of electric shock and fire. The device is rated for 25 A continuous current, uses a Type C tripping characteristic and features a 2-pole configuration appropriate for single-phase circuits with protective earth monitoring. It is intended for installation in consumer units or distribution boards where residual current detection complements overcurrent protection.
Advantages
The relay provides continuous monitoring of leakage currents with a compact 2-pole form factor suitable for standard DIN-rail mounting. Its Type C characteristic enables reliable operation with common inductive loads and typical domestic or light commercial equipment. Being rated at 25 A, the unit integrates with circuits of matching current capacity to add a layer of protection without requiring oversized conductors or enclosures.
Suitable for
 Residential electrical distribution boards (single-phase circuits)
 Light commercial installations where earth leakage protection is required
 Protection of lighting circuits, socket circuits and small appliances up to 25 A
 Retrofitting into existing consumer units that accept 2-pole residual current devices
When it may not be suitable
This relay is not intended for three-phase systems or for circuits that require a 4-pole residual device. It is also not suitable where higher continuous current ratings than 25 A are required or where specific residual current sensitivity values (e.g., for medical or industrial safety) are mandated unless matched with appropriate system design.
Key specifications
 Rated continuous current: 25 A
 Poles: 2-pole configuration
 Tripping characteristic: Type C (suitable for typical inductive loads)
 Function: Residual current (earth leakage) detection and disconnection
 Mounting: DIN-rail compatible form factor for distribution boards
How to use
Install the ETI KZS 2 M C 25 A in the distribution board on a standard DIN-rail following local electrical regulations. Connect the line and neutral conductors through the device as indicated by the manufacturer, ensuring correct orientation and secure terminations. Coordinate the residual current relay with upstream overcurrent protection and verify compatibility with the circuit load. Perform commissioning tests to confirm correct trip behavior for leakage currents and document settings and test results in accordance with safety procedures.
What to consider before purchase
 Verify that your circuit is single-phase and that a 2-pole device is appropriate
 Confirm that 25 A rated continuous current matches the protected circuit load
 Ensure Type C tripping characteristic is suitable for connected equipment (inductive loads)
 Check physical space and DIN-rail compatibility in your consumer unit or panel
Usage recommendations
Test residual current protection regularly after installation and after any significant changes to the electrical installation. Coordinate the relay with upstream protection devices and follow local wiring codes for safe operation.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.235 kg |

## FAQ

### How much does the Residual Current Relay ETI KZS 2 M C 25 A cost, and is it available for purchase?

The price is 54.49 € (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 27.07.2026 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 ETI 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 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/4909598/30584766_large.webp