# KOOP Elektro IS40-3-04 Modular Contactor 40A 4NC 230V 3-Phase

**URL:** https://aio.lv/en/product--koop-elektro-is40-3-04--12468787
**Data updated:** 2026-05-18 09:31 (EEST)
**Category:** Power Sockets
**Manufacturer:** KOOP Elektro
**Manufacturer code:** IS40-3-04
**EAN:** 4260704861666
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 34.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 28.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--koop-elektro-is40-3-04--12468787

## 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 KOOP Elektro IS40-3-04 is a 40A modular contactor designed for reliable electrical switching in 3-phase systems. Featuring 4 normally closed (4NC) contacts and a 230V coil, this device is suitable for industrial and residential electrical installations. It ensures efficient control of lighting, heating, and motor circuits, providing a compact and durable solution for DIN-rail mounting in distribution boards.

## Long description

The KOOP Elektro IS40-3-04 is a high-performance modular contactor engineered for robust electrical switching within 3-phase systems. With a rated current of 40A and a 230V coil, this device provides a reliable method for managing electrical loads in both residential and industrial environments. Its design focuses on safety and efficiency, ensuring that circuits remain controlled under various operating conditions.
The primary advantage of this contactor lies in its compact modular architecture, which allows for seamless integration into standard distribution boards. By utilizing 4 normally closed (4NC) contacts, the device maintains a default closed state, making it ideal for specific control logic requirements. The construction is durable and built to withstand frequent switching operations, ensuring long-term reliability and minimal maintenance requirements in demanding electrical setups.
Suitable for
Control of lighting systems in commercial buildings
Management of heating and ventilation circuits
Switching of 3-phase motor loads
Integration into automated electrical distribution panels
This contactor may not be suitable for applications requiring normally open (NO) contacts, as this specific model is configured exclusively with 4 normally closed (4NC) contacts. Additionally, it is not intended for use in environments exceeding its rated current capacity or in systems requiring specialized hazardous-location protection.
Key specifications
Rated current: 40A
Contact configuration: 4 normally closed (4NC)
Coil voltage: 230V AC
Mounting type: DIN-rail
System compatibility: 3-phase
To install the KOOP Elektro IS40-3-04, mount the unit onto a standard DIN-rail within your electrical distribution board. Ensure that the power supply is disconnected before making any wiring connections. Connect the control circuit to the coil terminals and the load circuit to the main power terminals, verifying that all connections are secure and tightened to the manufacturer's torque specifications. Once installed, restore power and test the switching functionality to confirm proper operation.
What to consider before purchase
Verify that your control logic requires normally closed (4NC) contacts
Ensure the 230V coil voltage matches your control circuit output
Check that the 40A rating is sufficient for your specific load requirements
Confirm available space on the DIN-rail within your distribution board
For optimal performance and safety, ensure that the contactor is installed by a qualified electrician in accordance with local electrical regulations. Regularly inspect the terminals for tightness and check for any signs of overheating during routine maintenance.

## FAQ

### How much does the KOOP Elektro IS40-3-04 Modular Contactor 40A cost, and is it available for purchase?

The price is 34.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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. 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 KOOP Elektro 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 KOOP Elektro 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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