# Eaton CMUC24/25-31 Modular Contactor 25A 3NO 1NC 24V AC/DC

**URL:** https://aio.lv/en/product--eaton-137400--12459668
**Data updated:** 2026-05-18 09:31 (EEST)
**Category:** Power Sockets
**Manufacturer:** EATON
**Manufacturer code:** 137400
**EAN:** 4015081341825
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 65.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 54.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--eaton-137400--12459668

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

The Eaton CMUC24/25-31 is a modular contactor designed for reliable electrical switching in distribution boards. It features a 25A rated current, 3 normally open (NO) contacts, and 1 normally closed (NC) contact. Operating on a 24V AC/DC control voltage, this device is ideal for controlling lighting, heating, and ventilation systems in residential and commercial installations, ensuring efficient power management and circuit protection.

## Long description

The Eaton CMUC24/25-31 is a high-performance modular contactor engineered for precise electrical switching within distribution boards. With a rated operational current of 25A and a versatile configuration of 3 normally open (NO) and 1 normally closed (NC) contacts, this device provides robust control for various electrical circuits. It is designed to operate on a 24V AC/DC control voltage, making it a reliable solution for managing power distribution in both residential and commercial environments.
Advantages
This modular contactor stands out due to its compact design, which allows for seamless integration into standard DIN-rail distribution systems. The use of AC/DC control voltage enhances its flexibility, reducing the need for specific power supply types and simplifying installation. Its durable construction ensures long-term operational reliability, minimizing maintenance requirements while providing consistent switching performance for demanding electrical loads.
Suitable for
Controlling lighting systems in commercial buildings
Managing heating and ventilation equipment
Switching electrical loads in residential distribution boards
Automated control of small motors and pumps
When it may not be suitable
This device is not intended for high-power industrial applications that exceed the 25A rated current capacity. It should not be used in environments with extreme moisture or corrosive atmospheres without appropriate protective enclosure.
Key specifications
Rated operational current: 25A
Contact configuration: 3 normally open (NO), 1 normally closed (NC)
Control voltage: 24V AC/DC
Mounting type: DIN-rail
How to use
The contactor is designed for mounting on a standard 35mm DIN-rail inside a distribution cabinet. Ensure that the power supply is disconnected before installation. Connect the control wires to the A1 and A2 terminals and the load wires to the corresponding power terminals according to the wiring diagram provided on the device housing. Verify all connections are tightened to the specified torque before restoring power.
What to consider before purchase
Ensure the 24V AC/DC control voltage matches your existing control system
Verify that the 25A current rating is sufficient for your specific load
Check available space on the DIN-rail within your distribution board
Usage recommendations
For optimal performance and safety, ensure that the contactor is installed in a well-ventilated enclosure and that all electrical connections are inspected periodically for tightness.

## FAQ

### How much does the Eaton CMUC24/25-31 Modular Contactor 25A cost, and is it available for purchase?

The price is 65.99 € (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 08.07.2026 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 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/12459668/68761702_large.webp