Product Description:

The CU8210-M001-0110 cabinet dome is produced by Beckhoff and belongs to the CU EtherCAT Junctions series. It serves as a pass-through module that brings a single USB connection from inside a control cabinet to the machine exterior, allowing service laptops or diagnostic equipment to interface with controllers without opening the housing. By providing a sealed feed-through, the unit helps maintain enclosure integrity during maintenance tasks in industrial automation where quick USB access is required without compromising safety.

The dome ships with a molded cable that measures 1 m, so the internal USB plug can reach the nearest controller or hub without adding extension leads that increase signal attenuation. Externally, it presents a single receptacle configured as a USB 2.0 Type A interface; this lets standard flash drives or configuration dongles operate at full-speed data rates while remaining backward compatible with low-speed peripherals. A silicone gasket and threaded collar secure the body to the panel and, together with the housing materials, achieve an enclosure rating of IP66, blocking dust and high-pressure water jets. The retaining nut can be tightened up to 9 Nm to preserve the seal, and the hardware exposes exactly 1 USB socket to the operator side, reducing the likelihood of unused ports collecting contamination.

The required circular aperture is 40.5 mm in diameter within a ±0.2 mm tolerance, while the front flange spans a rectangular window of 37 mm that guides the dome into position and limits rotation. After installation, the unit stands just 120 mm high above the cabinet surface and projects an internal depth of 54 mm, leaving space for cable bending inside the enclosure. These dimensions help the unit fit within cabinet layouts that require controlled clearances around wiring and adjacent hardware.