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ABB vm96-4 mechanical interlock unit
ABB VM96-4 mechanical interlock unit for side-by-side interlocking of ABB AF, AFC and AFS contactors in industrial motor control systems.
£70.98
Why Choose the ABB VM96-4 Mechanical Interlock Unit?
The ABB VM96-4 (1SBN033405T1000) is a heavy-duty mechanical interlock unit designed to safely interlock two ABB AF series contactors installed side by side. It prevents both contactors from closing simultaneously, making it an essential accessory for reversing starters, changeover systems and industrial motor control applications where safe operation is critical.
Engineered to ABB's high quality standards, the VM96-4 provides dependable mechanical protection without increasing the overall width of the contactor assembly. Its compact construction allows straightforward installation between compatible contactors while maintaining a neat and space-efficient control panel layout.
Designed for ABB AF40 to AF96, AFC40 to AFC96 and AFS40 to AFS96 contactors, the VM96-4 includes two BB4 fixing clips for secure installation. It is widely specified by panel builders, OEM manufacturers and industrial automation engineers for reliable reversing and changeover motor starter assemblies.
Key Advantages
- Mechanical interlock prevents simultaneous operation of two contactors.
- Designed for side-by-side installation without increasing assembly width.
- Suitable for reversing motor starters and changeover applications.
- Compact and lightweight industrial design.
- Supplied complete with two BB4 fixing clips.
- Reliable ABB construction for demanding industrial environments.
Key Features
- ABB VM96-4 Mechanical Interlock Unit.
- Manufacturer part number: 1SBN033405T1000.
- Mechanical interlocking accessory.
- No auxiliary contacts.
- No increase in contactor assembly width.
- Compatible with ABB AF40...AF96, AFC40...AFC96 and AFS40...AFS96 contactors.
- Supplied with two BB4 fixing clips.
- Designed for reversing and changeover motor starter applications.
Safe Mechanical Interlocking for Industrial Motor Control
Mechanical interlock units provide an essential safety function by physically preventing two contactors from closing simultaneously. The ABB VM96-4 delivers reliable interlocking protection that complements electrical interlocking, helping protect motors, control equipment and operators during reversing and changeover operations.
Its compact design enables machine builders and panel manufacturers to create dependable reversing starters without increasing enclosure size, making it an ideal solution for industrial automation, motor control centres and OEM equipment.
Typical Applications
- Reversing motor starters.
- Forward and reverse motor control.
- Changeover switching systems.
- Industrial control panels.
- OEM machinery.
- Motor control centres.
Technical Specifications
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| Phase | Three Phase | |
|---|---|---|
| IP Rating | IP20 | |
| Device Type | Accessory | |
| Series | VM96 | |
| Part number | 1SBN033405T1000 | |
| Product type | Mechanical interlock unit | |
| Accessory type | Contactor interlock | |
| Mounting method | Side-by-side between contactors | |
| Compatible contactors | ABB AF40...AF96, AFC40...AFC96, AFS40...AFS96 | |
| Compatible poles | 3-pole and 4-pole contactors | |
| Additional width required | None | |
| Included accessories | 2 × BB4 fixing clips | |
| Maximum mechanical switching frequency | 1800 cycles/hour | |
| Protection rating | IP20 | |
| Standards | IEC/EN 60947-4-1, UL 60947-1, UL 60947-4-1, CSA C22.2 No. 60947-4-1 | |
| Product width | approx. 20 mm | |
| Product height | approx. 19.8 mm | |
| Product depth | approx. 10 mm | |
| Weight | approx. 0.006 kg | |
| EAN | 3471523130937 |
Frequently Asked Questions
What is the ABB VM96-4 used for?
The VM96-4 mechanically interlocks two compatible ABB contactors to prevent them from closing simultaneously during reversing or changeover operation.
Which ABB contactors is the VM96-4 compatible with?
It is designed for ABB AF40...AF96, AFC40...AFC96 and AFS40...AFS96 contactors installed side by side.
Does the VM96-4 increase the width of the contactor assembly?
No. The VM96-4 is specifically designed to fit between two contactors without increasing the overall assembly width.
What accessories are supplied with the VM96-4?
The mechanical interlock unit is supplied complete with two BB4 fixing clips for secure installation.
Where is the VM96-4 typically installed?
It is commonly installed in reversing starters, motor control centres, industrial automation systems and changeover switching applications.
Trusted by Machine Builders Worldwide
ABB VM mechanical interlock units are trusted by electrical engineers, OEM manufacturers and panel builders to provide dependable mechanical interlocking for industrial motor control, reversing starters and changeover systems.
