nVent HOFFMAN STB303012 steel terminal box with IP66 protection and 300 x 300 x 120 mm dimensions for industrial electrical connections and control applications.
SKU:STB303012MPN:STB303012
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Why Choose the nVent HOFFMAN STB303012 Terminal Box?
The nVent HOFFMAN STB303012 is a durable steel terminal box designed to protect electrical connections, terminal blocks and control components in industrial and commercial installations. Manufactured by nVent HOFFMAN, it provides a reliable enclosure solution where secure protection, mechanical strength and dependable performance are required.
This terminal box features a robust steel construction with an IP66 protection rating, helping protect installed components against dust ingress and powerful water jets. Its practical dimensions provide additional internal space for organised wiring, electrical connections and control equipment.
With dimensions of 300 mm height, 300 mm width and 120 mm depth, the nVent HOFFMAN STB303012 provides a versatile enclosure solution for electrical junction, automation and instrumentation applications.
Key Advantages
Durable nVent HOFFMAN steel terminal box for industrial applications.
IP66 protection rating provides protection against dust and powerful water jets.
300 × 300 × 120 mm dimensions provide flexible installation space.
Steel construction provides reliable mechanical protection and durability.
Suitable for terminal, junction and control equipment protection.
Reliable enclosure solution for industrial electrical systems.
Key Features
nVent HOFFMAN STB terminal box series.
Steel construction.
300 mm height × 300 mm width × 120 mm depth.
IP66 environmental protection rating.
Durable enclosure design for electrical connection protection.
Suitable for wall-mounted industrial installations.
Robust housing for control and junction applications.
Suitable for automation and electrical systems.
Reliable Protection for Electrical Connections
Terminal boxes such as the nVent HOFFMAN STB303012 provide a secure and protected environment for electrical connections, terminal blocks and control components. The steel construction offers dependable mechanical protection for electrical assemblies in industrial environments.
The IP66 enclosure design helps maintain protection against dust and water exposure, making it suitable for automation, control and electrical installation projects requiring reliable equipment protection.
Typical Applications
Industrial electrical junction points.
Automation and control systems.
Machine building applications.
Electrical connection protection.
Instrumentation installations.
Commercial and industrial electrical systems.
Technical Specifications
Country of Manufacture
Bulgaria
Manufacturer
nVent HOFFMAN
Series
STB Terminal Boxes
Model
STB303012
Product type
Steel terminal box
Construction material
Steel
Height
300 mm
Width
300 mm
Depth
120 mm
Protection rating
IP66
Mounting type
Wall mounting
Frequently Asked Questions
What is the nVent HOFFMAN STB303012 used for?
The nVent HOFFMAN STB303012 is used to protect electrical connections, terminal blocks and control components in industrial installations.
What are the dimensions of this terminal box?
The terminal box measures 300 mm high, 300 mm wide and 120 mm deep.
What protection rating does the nVent HOFFMAN STB303012 provide?
The enclosure provides an IP66 protection rating, helping protect internal components against dust and powerful water jets.
What material is the terminal box made from?
The enclosure is manufactured from steel to provide reliable mechanical protection and durability.
Where is this terminal box typically installed?
The terminal box is typically installed in industrial automation, electrical distribution and control applications.
Trusted by Industrial Engineers Worldwide
nVent HOFFMAN terminal boxes are widely used by electrical engineers and installers to provide reliable protection for connections, controls and industrial electrical equipment.
Country of Manufacture
Bulgaria
Manufacturer
nVent HOFFMAN
Series
STB Terminal Boxes
Model
STB303012
Product type
Steel terminal box
Construction material
Steel
Height
300 mm
Width
300 mm
Depth
120 mm
Protection rating
IP66
Mounting type
Wall mounting
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.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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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...