Eldon nVent STB303012 Junction Box 300x300x120mm IP66 Steel Grey

The Eldon nVent STB303012 is a robust industrial junction box designed for demanding environments. Manufactured from high-quality mild steel with a powder-coated finish in RAL 7035 light grey, this enclosure offers excellent protection against dust and water ingress with an IP66 rating. Ideal for use as a terminal box, distribution box, or control enclosure, it meets international standards including IEC 62208, EN 60529, and UL 508A.

Advantages

Durable construction with 1.2mm body and door thickness ensures long-lasting performance. The hinged door with a quarter-turn lock provides secure access, while the included galvanized steel mounting plate simplifies installation. Wall-mountable design saves space and allows flexible placement.

Suitable for

• Industrial electrical enclosures
• Terminal and junction boxes
• Distribution boards
• Control cabinets

Key specifications

• Material: Mild Steel, powder coated
• Colour: RAL 7035 (Light Grey)
• External dimensions: 300 x 300 x 120 mm (H x W x D)
• Ingress protection: IP66
• NEMA rating: 4, 12, 13
• Body/Door thickness: 1.2 mm
• Door type: Hinged, single door
• Lock: Quarter-turn with 3mm double-bit insert
• Gland plate: Yes, bottom entry
• Mounting plate: Included, galvanized steel
• Mounting: Wall / surface mount
• Standards: IEC 62208, EN 60529, UL 508A

Recommendations

For optimal performance, ensure proper cable gland selection and sealing. Suitable for indoor and outdoor use where protection against dust and water jets is required.