ABB VM300V 1SFN034701R1000 mechanical interlock unit for vertically mounted ABB contactors, designed to prevent simultaneous operation in industrial control applications.
£108.56
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.
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.
| 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 |
The ABB VM300V is a mechanical interlock unit used to prevent two ABB contactors from closing simultaneously in motor control and switching applications.
The VM300V is suitable for ABB A95, A110, A145, A185, A210, A260 and A300 contactors, along with selected AX contactor ranges.
The ABB VM300V is designed for mechanically interlocking two vertically mounted AC or DC operated contactors.
A mechanical interlock prevents two contactors from operating at the same time, improving safety and reliability in applications such as reversing starters.
The VM300V has approximate dimensions of 70 × 15 × 81 mm.
ABB mechanical interlock accessories provide reliable contactor coordination, improved switching safety and dependable performance in industrial control applications.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...