# Eaton CH143DU Cylindrical Fuse Base, 3-Pole, 14x51mm, 50A, 690V AC

**URL:** https://aio.lv/en/product--eaton-ch143du--12447170
**Data updated:** 2026-05-18 02:43 (EEST)
**Category:** Power Sockets
**Manufacturer:** EATON
**Manufacturer code:** CH143DU
**EAN:** 5027590326148
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 41.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 34.29 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--eaton-ch143du--12447170

## 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 CH143DU is a 3-pole cylindrical fuse base designed for 14x51mm fuse links. Rated for 50A and 690V AC, this robust fuse holder provides reliable circuit protection in industrial and commercial electrical distribution systems. It ensures secure mounting and efficient operation for electrical installations requiring high-performance protection components.

## Long description

The Eaton CH143DU is a high-quality 3-pole cylindrical fuse base engineered to accommodate 14x51mm fuse links. Designed for demanding electrical environments, this fuse holder supports a rated current of 50A and a voltage of up to 690V AC. It serves as a critical component in industrial and commercial electrical distribution systems, providing a secure and reliable mounting solution for circuit protection devices.
Advantages
This fuse base offers exceptional durability and performance for professional electrical installations. Its robust construction ensures long-term reliability, while the 3-pole configuration allows for efficient integration into three-phase power systems. The design facilitates quick and safe fuse replacement, minimizing downtime during maintenance. By providing a stable connection, it helps maintain the integrity of electrical circuits and protects sensitive equipment from overcurrent conditions.
Suitable for
Industrial electrical distribution panels
Commercial building power systems
Control cabinets and automation equipment
Protection of motor circuits and electrical distribution networks
When it may not be suitable
This fuse base is specifically designed for 14x51mm cylindrical fuses and is not compatible with other fuse sizes or types. It is intended for use in AC systems and should not be applied in DC circuits unless specifically rated for such use by the manufacturer.
Key specifications
Number of poles: 3
Compatible fuse size: 14x51mm
Rated current: 50A
Rated voltage: 690V AC
Mounting type: DIN rail
How to use
The Eaton CH143DU is designed for standard DIN rail mounting within an electrical enclosure. To install, snap the base onto the rail until it clicks securely into place. Insert the appropriate 14x51mm fuse links into the holders. Ensure that all electrical connections are tightened to the specified torque settings to prevent overheating and ensure optimal conductivity. Always verify that the power is disconnected before installing or replacing fuses.
What to consider before purchase
Verify that the 14x51mm fuse size matches your specific application requirements.
Ensure the 50A current rating is appropriate for the circuit load.
Check that the 690V AC voltage rating is compatible with your electrical system.
Confirm that there is sufficient space in your enclosure for a 3-pole unit.
Usage recommendations
Always use fuses with the correct amperage and voltage ratings to ensure the safety of your electrical system. Regularly inspect the fuse base for signs of wear or heat damage during routine maintenance intervals.

## FAQ

### How much does the Eaton CH143DU 3-Pole Cylindrical Fuse Base 14x51mm cost, and is it available for purchase?

The price is 41.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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/12447170/68750243_large.webp