nVent HOFFMAN S1MTBB is a light-duty die-cast aluminium rotary base bracket with 300-degree arm rotation, an integrated safety stop, maintenance-free bearings and 166 × 128 mm dimensions for industrial HMI suspension systems.
£863.00
The nVent HOFFMAN S1MTBB is a robust rotary base bracket designed for the nVent HOFFMAN light-duty HMI suspension system. It provides the mounting point between a suspension arm and a horizontal surface while allowing the entire attached suspension system to rotate, making it ideal for industrial operator-interface installations that require flexible positioning.
The S1MTBB allows the suspension arm to rotate through 300 degrees at the mounting point. An integrated safety stop helps control the available movement, while maintenance-free bearings provide smooth and dependable rotation. Its die-cast aluminium construction combines mechanical strength with relatively low weight for demanding industrial machine and automation applications.
Measuring 166 mm high × 128 mm deep and weighing approximately 1.70 kg, the S1MTBB is finished in RAL 9005 black. It is supplied with installation instructions, gaskets and tube setscrews for integration with compatible suspension components; surface mounting hardware is not included.
Rotary base brackets provide a flexible mounting point for industrial HMI suspension systems by allowing the complete arm assembly to move around its attachment point. The nVent HOFFMAN S1MTBB mounts on a horizontal surface and provides 300-degree rotation, enabling operators to reposition an attached HMI enclosure or control panel to suit different working positions around machinery.
The combination of die-cast aluminium construction, maintenance-free bearings and an integrated safety stop makes the S1MTBB suitable for machine-building and industrial automation applications where operator interfaces need to be repositioned regularly. Used with compatible nVent HOFFMAN light-duty suspension profiles and couplings, it forms a configurable support system for suspended control equipment.
| Manufacturer | nVent HOFFMAN |
|---|---|
| Model | S1MTBB |
| Product type | Rotary base bracket / suspension-system mounting bracket |
| System | Light-duty HMI suspension system |
| Mounting orientation | Horizontal surface |
| Rotation | 300 degrees |
| Bearings | Maintenance-free |
| Material | Die-cast aluminium |
| Colour | RAL 9005 black |
| Height | 166 mm |
| Depth | 128 mm |
| Base dimension | 100 mm |
| Centre opening | Ø70 mm |
| Mounting holes | 4 × Ø9 mm for M8 fasteners |
| Weight | 1.70 kg |
| Included | Installation instructions, gaskets and tube setscrews |
| Surface mounting hardware | Not included |
| EAN | 8713574235700 |
| Certifications | CE, UKCA and cULus / UL Listed |
| Standard | IEC 61439 |
| Bulletin | CS5 |
The S1MTBB is a rotary base bracket used to attach an HMI suspension system to a horizontal surface while allowing the complete suspension arm assembly to rotate.
The S1MTBB allows the connected suspension arm to rotate through 300 degrees around its horizontal mounting point.
The rotary base bracket is manufactured from durable die-cast aluminium and is supplied in a RAL 9005 black finish.
Yes. The S1MTBB incorporates an integrated safety stop and maintenance-free bearings to provide controlled, smooth and reliable rotational movement.
The S1MTBB measures approximately 166 mm high × 128 mm deep and weighs 1.70 kg. Its mounting arrangement includes four Ø9 mm mounting holes and a Ø70 mm centre opening.
nVent HOFFMAN rotary mounting components provide machine builders and automation engineers with robust, configurable support for suspended HMI enclosures and operator interfaces, combining controlled movement with dependable industrial construction.
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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...