nVent HOFFMAN STB404012 is an IP66 mild steel terminal box measuring 400 x 400 x 120 mm with a RAL 7035 powder-coated finish for protecting electrical terminals, junctions and connections in industrial applications.
£79.10
The nVent HOFFMAN STB404012 is a robust mild steel terminal box designed to protect electrical terminals, cable connections and small control components in demanding industrial environments. Part of the nVent HOFFMAN STB terminal box series, it provides a practical enclosure solution for terminal blocks, junctions and auxiliary electrical equipment.
Manufactured from mild steel, the STB404012 combines durable industrial construction with a RAL 7035 light grey powder-coated finish. Its IP66 protection rating provides complete protection against dust and protection against powerful water jets, while the sealed cover helps maintain dependable environmental protection around installed electrical equipment.
Measuring 400 mm high × 400 mm wide × 120 mm deep, the STB404012 provides a generous square mounting area while retaining a relatively shallow enclosure profile. This makes it well suited to larger terminal arrangements, cable junctions and associated wiring in industrial automation, machinery and electrical distribution applications.
Industrial terminal boxes provide a protected location for terminal blocks, cable junctions and electrical connections while helping isolate installed equipment from dust, moisture and accidental contact. The IP66-rated nVent HOFFMAN STB404012 provides dependable environmental protection for electrical terminations used throughout machinery, automation systems and industrial installations.
The mild steel construction provides a durable housing for electrical equipment, while the RAL 7035 powder-coated finish adds surface protection and a professional industrial appearance. Its 400 × 400 mm front dimensions provide useful space for arranging terminals and wiring, while the 120 mm depth helps maintain a relatively compact installation profile.
| Country of Manufacture | Bulgaria |
|---|---|
| Manufacturer | nVent HOFFMAN |
| Series | STB |
| Model | STB404012 |
| Product type | Mild steel terminal box |
| Height | 400 mm |
| Width | 400 mm |
| Depth | 120 mm |
| Material | Mild steel |
| Finish | Powder coated |
| Colour | Light grey |
| RAL colour | RAL 7035 |
| Degree of protection | IP66 |
| Body construction | Folded and seam welded |
| Cover type | Solid screw-fixed cover |
| Mounting plate | Not included |
The STB404012 measures 400 mm high × 400 mm wide × 120 mm deep, providing a useful square mounting area for terminal blocks, junctions and associated wiring.
The terminal box has an IP66 protection rating, providing complete protection against dust and protection against powerful water jets when correctly installed.
The STB404012 is manufactured from mild steel and features a durable RAL 7035 light grey powder-coated finish.
No. A mounting plate is not included as standard and can be ordered separately when required for the intended terminal or component arrangement.
The STB404012 is designed to house and protect terminal blocks, electrical junctions, cable connections and small electrical components in industrial machinery, automation and electrical distribution applications.
nVent HOFFMAN STB mild steel terminal boxes provide dependable protection for electrical terminals and connections, with the STB404012 combining IP66 ingress protection, durable RAL 7035 powder-coated steel construction and practical 400 × 400 × 120 mm dimensions for industrial 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...