nVent HOFFMAN S1MT250 is a 250 mm anodised aluminium light operator arm profile with a 75 × 55 mm closed section designed to provide structural support and internal cable routing for industrial HMI suspension systems.
SKU:S1MT250MPN:S1MT250
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Why Choose the nVent HOFFMAN S1MT250 Operator Arm Profile?
The nVent HOFFMAN S1MT250 is a compact 250 mm aluminium operator arm profile designed for the nVent HOFFMAN light swing arm system. It provides structural support for suspended HMI enclosures, operator panels and machine-control interfaces while also acting as a protected conduit for equipment wiring.
Manufactured from aluminium with an anodised finish, the S1MT250 combines low weight with the structural integrity required for industrial operator-interface installations. The profile attaches to compatible system components using six setscrews at each end, with the setscrews supplied with the corresponding couplings rather than the tube itself. This connection method allows straightforward adjustment and levelling during installation.
The S1MT250 has a length of 250 mm and a compact 75 × 55 mm external profile, with a weight of approximately 0.79 kg. Its short length makes it particularly suitable for compact HMI installations and suspension arrangements where only a small extension between joints, brackets or enclosure couplings is required.
Key Advantages
Compact 250 mm operator arm profile for space-conscious suspension installations.
Strong yet lightweight aluminium construction.
Internal profile space acts as a conduit for equipment wiring.
Anodised finish provides a durable and professional industrial appearance.
Six-set-screw connections support straightforward adjustment and levelling.
Compatible with nVent HOFFMAN light swing arm system components.
Key Features
nVent HOFFMAN light swing arm system.
250 mm profile length.
75 × 55 mm external profile dimensions.
Durable aluminium construction.
Anodised finish.
Closed profile provides structural integrity and protected cable routing.
Connects to compatible system components using six setscrews at each end.
Setscrews supplied with compatible system couplings.
Connections permit adjustment and levelling during installation.
Suitable for industrial HMI, operator-panel and machine-control installations.
Structural Support for Industrial HMI Systems
Operator arm profiles form the structural backbone of industrial HMI suspension systems, supporting control enclosures while providing a protected route for power, control and communication wiring. The nVent HOFFMAN S1MT250 provides a compact 250 mm section that can be combined with compatible brackets, elbows, joints and panel couplings to create application-specific operator-interface support arrangements.
The light swing arm system combines aluminium profiles with modular connection components to provide flexible HMI positioning for industrial machinery. The S1MT250 is particularly useful where a short suspension section is required, while its internal cable passage helps maintain a clean installation without external wiring along the operator arm.
Typical Applications
Industrial HMI and operator-interface suspension systems.
Compact machine control panels and operator stations.
Manufacturing and production machinery.
Automation and process-control installations.
Suspended electrical and control enclosures.
OEM machine-building and customised HMI installations.
Technical Specifications
Manufacturer
nVent HOFFMAN
Model
S1MT250
Product type
Operator arm profile / suspension-system tube
System
Light swing arm system
Material
Aluminium
Finish
Anodised
Profile type
Closed aluminium profile
Length
250 mm
Height
55 mm
Width
75 mm
Profile dimensions
75 × 55 mm
Weight
0.79 kg
Connection
Six setscrews at each end
Setscrews
Supplied with compatible system couplings, not with the tube
Adjustability
Setscrew connections allow adjustment and levelling
Cable routing
Internal profile acts as conduit for equipment wiring
Standard profile length
250 mm
EAN
8713574235632
Bulletin
CS5
Frequently Asked Questions
What is the nVent HOFFMAN S1MT250 used for?
The S1MT250 is an aluminium operator arm profile used as a structural tube within nVent HOFFMAN light swing arm systems, supporting operator enclosures while also providing an internal route for equipment wiring.
How long is the S1MT250 operator arm profile?
The S1MT250 has a nominal length of 250 mm and an external profile measuring 75 × 55 mm.
What material is the S1MT250 made from?
The S1MT250 is manufactured from aluminium and features an anodised finish, providing a strong yet lightweight structural component for industrial HMI suspension systems.
Can cables be routed through the S1MT250?
Yes. The aluminium profile provides structural support while also acting as a conduit for electrical, control and communication wiring between compatible suspension-system components and the attached HMI enclosure.
How does the S1MT250 connect to other suspension components?
The profile attaches to compatible system components using six setscrews at each end. The setscrews are supplied with the system couplings rather than the tube and allow adjustment and levelling during installation.
Trusted HMI Suspension System Components
nVent HOFFMAN light swing arm components provide machine builders and automation engineers with strong, lightweight and configurable structural support for suspended HMI enclosures, operator panels and industrial machine-control interfaces.
Manufacturer
nVent HOFFMAN
Model
S1MT250
Product type
Operator arm profile / suspension-system tube
System
Light swing arm system
Material
Aluminium
Finish
Anodised
Profile type
Closed aluminium profile
Length
250 mm
Height
55 mm
Width
75 mm
Profile dimensions
75 × 55 mm
Weight
0.79 kg
Connection
Six setscrews at each end
Setscrews
Supplied with compatible system couplings, not with the tube
Adjustability
Setscrew connections allow adjustment and levelling
Cable routing
Internal profile acts as conduit for equipment wiring
Standard profile length
250 mm
EAN
8713574235632
Bulletin
CS5
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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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...