# LSiS MC-40a 3-Pole Contactor, 40A, 18.5kW, 24V DC Coil, 1NO+1NC Auxiliary Contacts

**URL:** https://aio.lv/en/product--lsis-mc-40a-24vdc-1a1b--12469744
**Data updated:** 2026-05-18 09:38 (EEST)
**Category:** Control Systems
**Manufacturer:** LSiS
**Manufacturer code:** MC-40a 24VDC 1a1b
**EAN:** 8809512801288
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 86.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 71.48 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lsis-mc-40a-24vdc-1a1b--12469744

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

The LSiS MC-40a is a high-performance 3-pole industrial contactor designed for reliable motor control and power switching. It features a 40A rated current, 18.5kW power capacity, and a 24V DC control coil. Equipped with 1NO and 1NC auxiliary contacts, this device ensures efficient operation in automation and electrical distribution systems. Its robust design provides long-lasting durability for demanding industrial applications.

## Long description

The LSiS MC-40a is a high-performance 3-pole industrial contactor engineered for precise motor control and reliable power switching in demanding electrical environments. This device is built to handle significant electrical loads with a rated current of 40A and a power capacity of 18.5kW, making it a dependable component for industrial automation and power distribution systems. Featuring a 24V DC control coil and integrated auxiliary contacts, it offers seamless integration into modern control circuits.
Advantages
The LSiS MC-40a stands out due to its robust construction which ensures long-term durability even under frequent switching operations. Its compact design allows for efficient use of space within electrical panels, while the inclusion of both 1NO and 1NC auxiliary contacts provides flexibility for various feedback and interlocking configurations. The reliable 24V DC coil operation ensures consistent performance and energy efficiency, contributing to the overall stability of industrial control systems.
Suitable for
Industrial motor control systems
Power distribution and switching applications
Automation control panels
Heating and lighting control circuits
When it may not be suitable
This contactor is designed specifically for DC control voltage applications. It is not suitable for systems requiring AC control voltage without an appropriate power supply converter. Additionally, it should not be used in environments exceeding its rated current or power capacity limits.
Key specifications
Number of poles: 3
Rated operational current: 40A
Power capacity: 18.5kW
Control coil voltage: 24V DC
Auxiliary contacts: 1NO + 1NC
How to use
Installation should be performed by a qualified electrician in accordance with local electrical codes. Mount the contactor securely onto a standard DIN rail or mounting plate within a protected enclosure. Connect the main power lines to the primary terminals and the 24V DC control signal to the coil terminals. Ensure all connections are tightened to the manufacturer's specified torque settings to prevent overheating. Verify the auxiliary contact wiring for any required feedback loops or safety interlocks before energizing the system.
What to consider before purchase
Verify that your control circuit provides a stable 24V DC supply.
Ensure the motor or load power requirements do not exceed 18.5kW.
Check available space in your electrical cabinet for mounting.
Confirm the auxiliary contact configuration meets your system's logic requirements.
Usage recommendations
Regularly inspect the terminal connections for tightness and check for any signs of debris or dust accumulation within the enclosure to maintain optimal performance and prevent electrical faults.

## FAQ

### How much does the LSiS MC-40a 3-Pole Contactor 40A 18.5kW 24V DC cost, and is it available for purchase?

The price is 86.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 17 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 07.07.2026 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 LSiS MC-40a 3-Pole Contactor 40A 18.5kW 24V DC 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 LSiS 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 LSiS 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/12469744/68772528_large.webp