Ceiling mount set Legrand 999837 – 68 mm diameter, 55 mm depth

Ceiling mount set Legrand 999837 – 68 mm diameter, 55 mm depth is a purpose-designed mounting accessory for installations that require a round recessed opening in ceilings. Manufactured by Legrand, this set provides a stable support and alignment for devices that fit a 68 mm diameter cutout and a 55 mm installation depth, simplifying positioning and ensuring a flush finish for electrical and low-voltage fixtures.

Advantages

The ceiling mount set offers precise dimensional conformity to a 68 mm diameter aperture and a 55 mm depth, enabling straightforward and repeatable installation. Its construction ensures secure attachment to ceiling substrates while maintaining correct recessed alignment for compatible devices. The modular design reduces installation time by providing a ready-made mounting interface and helps achieve a neat, professional appearance without extensive on-site modification.

Suitable for

• Recessed mounting of smoke detectors and optical sensors with 68 mm cutout requirement
• Installation of small speakers, microphones or intercom components designed for round ceiling openings
• Low-voltage modules and junction points that require defined depth and diameter for flush mounting
• Retrofit and new-build ceiling installations where a standardized round opening is specified

Key specifications

• Mounting opening diameter: 68 mm
• Maximum installation depth: 55 mm
• Designed for round recessed ceiling installations
• Compatible with electrical and low-voltage fixtures requiring defined cutout dimensions
• Material and finish suitable for fixed ceiling attachment and alignment

How to use

Prepare the ceiling by marking and cutting a clean round opening with a 68 mm diameter. Verify that the available clearance behind the ceiling meets the 55 mm depth requirement. Insert the mount set into the opening and secure it according to the mounting substrate—fastening points or clamps supplied with the set should be used as intended. After the mount set is fixed, position the compatible device through the opening and attach it to the mount, ensuring correct recessed alignment and secure mechanical connection. Follow applicable electrical installation standards when making wiring connections.

Usage recommendations

Use the mount set in ceilings with sufficient backing or supporting structure to accept the mounting fixings. Confirm device compatibility with a 68 mm cutout and 55 mm depth before installation. For installations involving electrical power, disconnect supply and comply with local codes; consider professional installation for complex or concealed wiring scenarios.