# ABB VM19 Mechanical Interlock for Contactors

**URL:** https://aio.lv/en/product--abb-1sfn030300r1000--12450173
**Data updated:** 2026-05-18 02:41 (EEST)
**Category:** Home & DIY Accessories
**Manufacturer:** ABB
**Manufacturer code:** 1SFN030300R1000
**EAN:** 7320500492574
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The ABB VM19 mechanical interlock is a reliable accessory designed for use with contactors to prevent simultaneous operation. This device ensures operational safety by mechanically interlocking two contactors, making it an essential component for motor reversing or changeover applications in industrial electrical systems. It provides robust performance and easy installation for professional electrical setups.

## Long description

The ABB VM19 mechanical interlock is a high-quality accessory engineered to enhance the safety and reliability of electrical control systems. Designed specifically for use with contactors, this device provides a robust mechanical link that prevents two contactors from being closed simultaneously. By ensuring that only one contactor can be active at any given time, it effectively eliminates the risk of short circuits during motor reversing or power changeover operations.
Advantages
This mechanical interlock offers exceptional durability and precision, ensuring consistent performance in demanding industrial environments. Its design facilitates quick and straightforward installation, allowing professionals to integrate it into existing control panels without extensive modifications. By providing a physical barrier to simultaneous operation, it serves as a critical safety component that protects equipment from electrical faults and extends the lifespan of the contactors involved in the switching process.
Suitable for
Motor reversing applications
Power supply changeover systems
Industrial automation control panels
Electrical distribution setups requiring interlocking logic
When it may not be suitable
This device is specifically designed for compatible ABB contactors and may not be suitable for use with contactors from other manufacturers or different product series. It is not intended for applications that require electrical interlocking alone without the need for mechanical backup.
Key specifications
Mechanical interlocking mechanism
Designed for contactor synchronization
Robust industrial-grade construction
Easy mounting configuration
How to use
To install the ABB VM19, ensure that all power to the contactors is disconnected to prevent accidental activation. Align the interlock device between the two contactors according to the manufacturer's mounting instructions. Secure the unit firmly in place, ensuring that the mechanical linkage is properly engaged with the contactor mechanisms. Once installed, perform a manual test to verify that the interlock prevents both contactors from closing at the same time before restoring power to the system.
What to consider before purchase
Verify compatibility with your specific contactor model
Ensure sufficient space is available within the control cabinet for the interlock
Confirm that the application requires mechanical rather than just electrical interlocking
Usage recommendations
Always verify the mechanical operation of the interlock after installation and during routine maintenance to ensure continued safety and reliable switching performance.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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 ABB 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 ABB 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

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