# LSiS MMS-LX 2a Side Auxiliary Contact Block 2NO

**URL:** https://aio.lv/en/product--lsis-mms-lx-2a--12450063
**Data updated:** 2026-05-18 02:45 (EEST)
**Category:** Computer Component Accessories
**Manufacturer:** LSiS
**Manufacturer code:** MMS-LX 2a
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 13.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lsis-mms-lx-2a--12450063

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The LSiS MMS-LX 2a is a side-mounted auxiliary contact block designed for use with motor protection circuit breakers. Featuring 2NO (normally open) contacts, this module provides reliable signal feedback for automation and control systems. It is engineered for easy installation and seamless integration with LSiS circuit breakers to enhance monitoring and operational safety in industrial electrical applications.

## Long description

The LSiS MMS-LX 2a is a side-mounted auxiliary contact block specifically engineered for integration with LSiS motor protection circuit breakers. This module serves as a critical component in industrial automation, providing reliable signal feedback regarding the status of the main circuit breaker. By utilizing two normally open (2NO) contacts, it allows for effective monitoring and control, ensuring that operational data is accurately transmitted to control systems to enhance overall safety and system visibility.
Advantages
The primary advantage of the LSiS MMS-LX 2a is its seamless compatibility with LSiS motor protection circuit breakers, which ensures a straightforward and secure installation process. Its side-mounting design saves valuable space within electrical enclosures while maintaining robust electrical connectivity. The high-quality construction of the contact block ensures long-term reliability and consistent performance in demanding industrial environments, making it an essential addition for systems requiring precise status monitoring and automated control feedback.
Suitable for
Industrial automation and control systems
Motor protection and monitoring circuits
Electrical panels requiring status signaling
Integration with LSiS motor protection circuit breakers
When it may not be suitable
This auxiliary contact block is designed exclusively for specific LSiS motor protection circuit breakers and may not be compatible with circuit breakers from other manufacturers or different series. It is not intended for high-power switching applications, as it is strictly a signal-level auxiliary device.
Key specifications
Contact configuration: 2NO (Normally Open)
Mounting type: Side-mounted
Compatibility: LSiS motor protection circuit breakers
Function: Auxiliary signal feedback
How to use
To install the LSiS MMS-LX 2a, ensure that the main power supply to the motor protection circuit breaker is completely disconnected. Align the auxiliary block with the designated side-mounting interface on the circuit breaker housing. Secure the unit firmly according to the mechanical locking mechanism provided. Once physically attached, connect the signal wiring to the terminal points of the contact block. Verify all connections are tight and that the contact block is properly seated before restoring power to the system.
What to consider before purchase
Verify compatibility with your specific LSiS circuit breaker model
Ensure the 2NO contact configuration meets your control system requirements
Check available space on the side of the circuit breaker within your enclosure
Usage recommendations
Always perform installation and maintenance by qualified electrical personnel. Regularly inspect the terminal connections for tightness and ensure the contact block remains free from dust or debris to maintain optimal signal transmission.

## FAQ

### How much does the LSiS MMS-LX 2a Side Auxiliary Contact Block cost, and is it available for purchase?

The price is 15.99 € (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 06.07.2026 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 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/12450063/68752848_large.webp