# LS AU-1M 1b Side Auxiliary Contact 1NC

**URL:** https://aio.lv/en/product--ls-au-1m-1b--12492499
**Data updated:** 2026-06-02 20:06 (EEST)
**Category:** Electronics Accessories
**Manufacturer:** LS
**Manufacturer code:** AU-1M 1b
**EAN:** 2000000015316
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 10.32 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ls-au-1m-1b--12492499

## 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 LS AU-1M 1b is a side-mounted auxiliary contact block designed for integration with compatible electrical switchgear. Featuring a 1NC (normally closed) configuration, this component provides reliable feedback on the switching status of the main device. It is essential for control and signaling circuits in industrial and commercial electrical installations, ensuring precise monitoring and operational safety.

## Long description

The LS AU-1M 1b is a side-mounted auxiliary contact block engineered for seamless integration with compatible LS electrical switchgear. This component features a 1NC (normally closed) configuration, serving as a critical interface for monitoring the operational status of the primary switching device. By providing reliable feedback, it ensures that control and signaling circuits function with high precision, contributing to the overall safety and efficiency of industrial and commercial electrical systems.
Advantages
The primary advantage of the LS AU-1M 1b lies in its robust design and ease of installation. As a side-mounted unit, it saves valuable space within electrical enclosures while maintaining a secure connection to the main contactor. Its 1NC contact configuration is specifically designed for applications requiring a normally closed state, offering consistent performance and durability in demanding environments. This auxiliary contact block is built to withstand frequent switching operations, ensuring long-term reliability for automated control systems.
Suitable for
Industrial automation control panels
Commercial building electrical distribution systems
Signaling and status monitoring circuits
Safety interlock applications
When it may not be suitable
This auxiliary contact is not suitable for applications requiring a normally open (NO) contact configuration, as it is strictly a 1NC device. It is also not compatible with switchgear brands or models outside of the specified LS series, and attempting to force a fit may result in mechanical damage or electrical failure.
Key specifications
Contact configuration: 1NC (Normally Closed)
Mounting type: Side-mounted
Compatibility: LS electrical switchgear
Function: Status feedback and signaling
How to use
To install the LS AU-1M 1b, ensure that the main electrical power supply is completely disconnected to prevent accidental contact. Align the auxiliary contact block with the designated side mounting interface on the main switchgear unit. Press the block firmly until it clicks into place, ensuring that the mechanical linkage is properly engaged. Once installed, connect the control circuit wiring to the terminals according to the electrical schematic of your system. Verify the connection by testing the continuity of the contact in both the open and closed positions of the main device.
What to consider before purchase
Verify the compatibility of your existing LS switchgear model
Confirm that your control circuit requires a 1NC (normally closed) contact
Ensure there is sufficient physical space on the side of your contactor for the mounting block
Usage recommendations
Always perform a functional test of the auxiliary contact after installation and before putting the main electrical system into full operation to ensure the signaling circuit responds correctly to the switchgear status.

## FAQ

### How much does the LS AU-1M 1b Side Auxiliary Contact cost, and is it available for purchase?

The price is 12.49 € (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 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. 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 LS 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 LS 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/12492499/68821726_large.webp