# LSiS UA-1 1a1b Side Auxiliary Contact Block for MC-9b to 150a Contactors

**URL:** https://aio.lv/en/product--lsis-ua-1-1a1b--12484688
**Data updated:** 2026-05-27 17:52 (EEST)
**Category:** Printer & Copier Parts
**Manufacturer:** LSiS
**Manufacturer code:** UA-1 1a1b
**EAN:** 2000000020051
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 8.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lsis-ua-1-1a1b--12484688

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The LSiS UA-1 1a1b is a side-mounted auxiliary contact block designed for use with LSiS MC-9b through 150a series contactors. Featuring a 1NO+1NC configuration, this accessory provides reliable switching status feedback for industrial control systems. It is essential for expanding the functionality of contactors in automation and power distribution applications, ensuring precise monitoring and control of electrical circuits.

## Long description

The LSiS UA-1 1a1b is a side-mounted auxiliary contact block engineered specifically for integration with LSiS MC-9b through 150a series contactors. This component serves as a critical interface for industrial control systems, providing essential feedback on the switching status of the main contactor. By adding this block, users can effectively monitor and manage electrical circuits, ensuring that automation processes operate with high reliability and precision.
Advantages
This auxiliary contact block offers a robust design that ensures seamless mechanical and electrical compatibility with the specified contactor range. The 1NO+1NC configuration provides versatile signal options, allowing for both normally open and normally closed circuit monitoring. Its side-mounting design saves space on the DIN rail or mounting plate, making it an efficient choice for compact control panels where every millimeter counts. The high-quality construction guarantees long-term durability and consistent performance in demanding industrial environments.
Suitable for
Industrial automation systems
Power distribution panels
Motor control centers
Electrical circuit monitoring and signaling
This product may not be suitable for applications requiring a higher number of auxiliary contacts than the 1NO+1NC configuration provides, or for use with contactor series outside of the specified MC-9b to 150a range. It is also not intended for direct high-power switching applications, as it is designed strictly for control and signaling purposes.
Key specifications
Configuration: 1NO (Normally Open) + 1NC (Normally Closed)
Mounting type: Side-mounted
Compatibility: LSiS MC-9b to 150a contactors
Function: Switching status feedback
To install the LSiS UA-1 1a1b, ensure that the main contactor is disconnected from all power sources. Align the auxiliary block with the side mounting interface of the contactor and snap it into place according to the manufacturer's mechanical guidelines. Once secured, connect the control wiring to the terminals, ensuring that the wire gauge is appropriate for the terminal capacity. Verify that the contactor mechanism moves freely and that the auxiliary contacts actuate correctly before restoring power to the system.
What to consider before purchase
Verify the model number of your existing contactor to ensure it falls within the MC-9b to 150a range.
Check available space on the side of your contactor within the control cabinet.
Confirm that your control circuit requires a 1NO+1NC configuration.
Usage recommendations: Always perform a functional test of the auxiliary contacts using a multimeter before integrating the contactor into a live production circuit to ensure proper signal transmission.

## FAQ

### How much does the LSiS UA-1 1a1b Side Auxiliary Contact Block cost, and is it available for purchase?

The price is 10.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 24 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 09.07.2026 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/12484688/68807187_large.webp