Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SFN034701R1000 ABB VM300V Mechanical Interlock Unit
ABB VM300V 1SFN034701R1000 mechanical interlock unit for vertically mounted ABB contactors, designed to prevent simultaneous operation in industrial control applications.
£70.56
Why Choose the ABB VM300V 1SFN034701R1000 Mechanical Interlock Unit?
The ABB VM300V (1SFN034701R1000) is a robust and reliable mechanical interlock unit designed for use with ABB contactors in industrial motor control and switching applications. As part of the ABB contactor accessory range, it provides mechanical interlocking between two vertically mounted AC or DC operated contactors to prevent simultaneous operation.
This mechanical interlock improves the safety and reliability of reversing starters, changeover circuits and other contactor arrangements where two contactors must be prevented from closing at the same time. The VM300V allows two contactors of the same or different ratings to be mechanically linked according to the ABB contactor compatibility tables.
With its compact 15 mm width, screw terminal construction and compatibility with ABB A95–A300, AX and related contactor ranges, the ABB VM300V provides a dependable solution for industrial control panels requiring safe mechanical switching coordination.
Key Advantages
- Reliable mechanical interlocking solution for ABB contactors.
- Prevents two vertically mounted contactors from closing simultaneously.
- Suitable for AC and DC operated contactors.
- Compatible with a wide range of ABB block contactors.
- Compact design for efficient control panel installation.
- Improves safety in reversing and changeover motor control circuits.
Key Features
- ABB VM300V mechanical interlock unit.
- Vertical mounting configuration.
- Designed for two mechanically interlocked contactors.
- Suitable for ABB A95, A110, A145, A185, A210, A260 and A300 contactors.
- Also suitable for selected AX contactor ranges.
- Screw terminal construction.
- Accessory for ABB block contactors.
Reliable Mechanical Protection for Contactor Systems
Mechanical interlock units such as the ABB VM300V are essential components in contactor assemblies where electrical interlocking alone is not sufficient. By physically preventing simultaneous contactor operation, they provide an additional layer of protection in motor reversing and transfer switching applications.
The ABB VM series is designed for integration with ABB block contactors, helping engineers create reliable and safe industrial control systems with simplified installation and dependable long-term operation.
Typical Applications
- Reversing motor starters.
- Motor changeover circuits.
- Industrial automation control panels.
- Three-phase motor control systems.
- Machine building applications.
- Industrial contactor assemblies.
Technical Specifications
Tick the specs you need, then view products that match.
| Terminal Type | Screw | |
|---|---|---|
| Device Type | Accessory | |
| Manufacturer | ABB | |
| Series | VM Mechanical Interlock Accessories | |
| Model | VM300V | |
| Product ID | 1SFN034701R1000 | |
| Product type | Mechanical interlock unit | |
| Function | Mechanical interlocking of two contactors | |
| Mounting arrangement | Vertical contactor mounting | |
| Suitable for | ABB A95–A300 and AX contactor ranges | |
| Terminal type | Screw terminals | |
| Mounting width | 15 mm | |
| Dimensions (H × W × D) | approx. 70 × 15 × 81 mm | |
| Weight | approx. 0.15 kg | |
| Minimum order quantity | 1 piece |
Frequently Asked Questions
What is the ABB VM300V 1SFN034701R1000 used for?
The ABB VM300V is a mechanical interlock unit used to prevent two ABB contactors from closing simultaneously in motor control and switching applications.
Which contactors are compatible with the VM300V?
The VM300V is suitable for ABB A95, A110, A145, A185, A210, A260 and A300 contactors, along with selected AX contactor ranges.
What type of mounting arrangement does this interlock support?
The ABB VM300V is designed for mechanically interlocking two vertically mounted AC or DC operated contactors.
Why is a mechanical interlock used with contactors?
A mechanical interlock prevents two contactors from operating at the same time, improving safety and reliability in applications such as reversing starters.
What are the dimensions of the ABB VM300V?
The VM300V has approximate dimensions of 70 × 15 × 81 mm.
Trusted by Industrial Automation Engineers
ABB mechanical interlock accessories provide reliable contactor coordination, improved switching safety and dependable performance in industrial control applications.
