f-tronic HW Device Connection Box E3700TC Airtight Cavity Wall Box D68mm T62mm Orange 10 Pieces 7360072

Electricians use the f-tronic HW device connection box E3700TC when installing sockets or switches in cavity walls where airtightness is required. The box fits a 68 mm drill hole and offers a mounting depth of 62 mm, making it suitable for standard European installation depths. The orange polypropylene housing is halogen-free and flame retardant, with eight flexible membrane cable entries that seal around cables to maintain the airtight barrier.

Key specifications

• Installation type: Cavity wall (Hohlwand)
• Box type: Device connection box
• Special feature: Airtight / Windtight
• Nominal diameter: 68 mm
• Mounting depth: 62 mm
• Material: Plastic (Polypropylene)
• Colour: Orange
• IP protection class: IP30
• Flame retardant: Yes
• Halogen-free: Yes
• Number of cable entries: 8
• Cable entry type: Flexible membrane
• Suitable wall thickness: 7 - 35 mm
• Mounting method: For screw and claw fastening
• Standard compliance: DIN EN 60670-1, DIN EN 60670-22
• Rated voltage: Up to 400 V
• Operating temperature range: -5°C to +60°C

Why choose it

The airtight design prevents drafts and moisture from passing through the wall cavity, improving energy efficiency and protecting the installation. The flexible membranes allow cables to be inserted quickly without additional sealing, and the flame-retardant, halogen-free material adds safety in residential and commercial buildings.

Ideal use cases

• Installing sockets and switches in drywall or cavity walls
• Renovation projects where airtightness is required by building codes
• Low-energy or passive house construction
• Commercial electrical installations with high safety requirements

Good to know

The box is supplied in a pack of 10 pieces. It is designed for screw and claw fastening, allowing secure mounting in various wall thicknesses from 7 to 35 mm. The operating temperature range of -5°C to +60°C covers typical indoor environments.