OBO A 18 Cable Junction Box 125x100x38 mm Light Grey RAL 7035

Electricians and panel builders working on industrial or commercial installations need a junction box that can handle dust, moisture, and mechanical stress without compromising safety. The OBO A 18 Cable Junction Box delivers exactly that. Its robust, halogen-free polyethylene housing in light grey (RAL 7035) provides a secure enclosure for cable connections, while the screw-on lid and IP55 protection ensure reliable performance in challenging environments. With smooth walls and no pre-stamped entries, installers have complete freedom to position cable glands exactly where needed, reducing installation time and material waste.

Key specifications

• Material: Halogen-free, UV-resistant polyethylene (PE)
• Colour: Light grey (RAL 7035)
• External dimensions (L x W x H): 125 x 100 x 38 mm
• Internal depth: 30 mm
• Protection class: IP55 (dust-protected and water jet resistant)
• Impact resistance: IK07
• Operating temperature: -5 °C to +60 °C
• Rated insulation voltage: 400 V
• Glow wire test: 750 °C (EN 60670-1)
• Lid fastening: Screw-on lid
• Mounting type: Surface mounting
• Seal material: TPE (thermoplastic elastomer)
• Suitable for outdoor use: Yes

Why choose it

The OBO A 18 combines durability with installation flexibility. Its halogen-free polyethylene construction reduces toxic smoke and corrosive gases in the event of fire, enhancing safety for people and equipment. The IP55 rating ensures reliable protection against dust and water jets, making it suitable for both indoor and outdoor applications. UV resistance prevents material degradation from sunlight, so the box maintains its integrity even after years of exposure. The IK07 impact rating means it can withstand mechanical shocks without cracking, reducing the risk of accidental damage during installation or operation.

Ideal use cases

• Industrial control panels and machine wiring
• Outdoor lighting and power distribution
• Commercial building installations (offices, retail, warehouses)
• Renovation projects requiring flexible cable entry positioning
• Areas with high dust or moisture levels, such as workshops or basements

Good to know

The junction box has smooth walls without pre-stamped entries, allowing you to drill or punch holes exactly where your cable glands need to go. This not only ensures a perfect fit but also maintains the IP55 protection when proper cable glands are used. The screw-on lid with TPE seal provides a secure and reliable closure, preventing dust and water ingress. The box is surface-mounted and can be easily fixed to walls or panels using screws. Its compact size and light grey colour make it unobtrusive in most environments.