# ABB VM4 Mechanical Interlock for Contactors 1SBN030105T1000

**URL:** https://aio.lv/en/product--abb-1sbn030105t1000--12468538
**Data updated:** 2026-05-18 09:43 (EEST)
**Category:** Printer & Copier Parts
**Manufacturer:** ABB
**Manufacturer code:** 1SBN030105T1000
**EAN:** 3471523130609
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--abb-1sbn030105t1000--12468538

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The ABB VM4 mechanical interlock is a reliable accessory designed for the safe operation of contactors. It prevents simultaneous closing of two contactors, ensuring electrical safety in control circuits and motor reversing applications. This robust component is essential for industrial automation systems, providing precise mechanical coordination and preventing short circuits during switching operations.

## Long description

The ABB VM4 mechanical interlock is a precision-engineered accessory designed to enhance the operational safety of contactor assemblies. By physically preventing the simultaneous closing of two contactors, this device ensures that control circuits remain protected from short circuits and phase-to-phase faults. It is a critical component for maintaining reliable performance in industrial automation and motor control environments where reversing or changeover switching is required.
Advantages
This mechanical interlock offers a robust and durable design that integrates seamlessly with compatible ABB contactors. Its primary benefit is the high level of mechanical reliability it provides, effectively eliminating the risk of accidental simultaneous activation. The compact construction allows for easy installation without significantly increasing the footprint of the control panel, making it an efficient solution for space-constrained electrical cabinets.
Suitable for
Motor reversing applications
Star-delta starter configurations
Changeover switching systems
Industrial automation control panels
When it may not be suitable
This device is specifically designed for use with designated ABB contactor series. It is not compatible with contactors from other manufacturers or series that do not support this specific mechanical mounting interface. Furthermore, it is not intended for use in applications where electrical interlocking alone is sufficient or where the contactors are not physically mounted adjacent to each other.
Key specifications
Function: Mechanical interlocking of two contactors
Compatibility: Specific ABB contactor series
Mounting: Front or side mounting depending on contactor type
Material: High-strength industrial plastic
How to use
To install the ABB VM4, ensure that the power supply to the contactors is completely disconnected. Align the interlock mechanism with the mounting points on the front or side of the contactors as specified in the technical documentation. Secure the device firmly to ensure that the mechanical linkage is correctly engaged with the contactor actuators. Once installed, perform a manual test to verify that activating one contactor physically prevents the other from closing before restoring power to the system.
What to consider before purchase
Verify compatibility with your specific contactor model numbers
Ensure sufficient space is available for the interlock installation
Confirm the mounting orientation required for your control cabinet layout
Usage recommendations
Regularly inspect the mechanical interlock during scheduled maintenance to ensure there is no debris or wear that could impede its movement. Always verify the mechanical operation after any maintenance or modification to the contactor assembly.

## FAQ

### How much does the ABB VM4 Mechanical Interlock for Contactors cost, and is it available for purchase?

The price is 12.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 16 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 14.07.2026 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 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

https://aio.lv/img/cache/product/12468538/68771144_large.webp