SUBRACKS AND MODULE SUBUNITS: aluminum enclosures for electronics

RACK CABINET >> SUBRACK >> SUBUNIT

The 19" rack system is based on multiple levels described by the IEC 60297 standard. It can be summarised in the following 3 levels:


RACK CABINET: The 19” rack mounting system was first presented in 1970 at the Hannover Fair by AEG Telefunken and subsequently became the undisputed mechanical standard for all industrial applications.
Depending on the size, use and characteristics they are called rack cabinets, table racks, laboratory frames

SUBRACK: Objects mounted inside a RACK are called SUBRACK.
Subracks have standardized dimensions, the height is measured in rack units and the most common models are 3, 6 and 9 units high, the external width is 19" (the side flanges allow them to be fixed inside a rack).

SUBUNITS: Mechanical and electronic components can be mounted inside SUBRACKS directly on PCBs fixed to the subrack, or using Eurocard-format printed circuit boards inserted into guides that allow for their installation and removal, or using mechanical enclosures that use these guides to create a sort of removable drawer system (SUB-UINTs). Our technical office has many years of experience developing solutions for sub-racks and sub-units.

Our range of subracks is divided into " Silver Series ", " Gold Series " and "Platinum Series", each family includes a wide range of accessories and customizations able to cover all needs and types of applications:

• Fully shielded subracks certified for railway applications

• Subrack for European standard format cards (IEC-60297-3-101, IEC-60297-3-102, IEC-60297-3-103)

• Customized subracks from 3 to 18 units of different depths

In the Silver Series , the 19" profiles (front and rear crosspieces) are secured to the walls using an M5 screw. The Gold Series features two M4 screws for greater rigidity. The 2000 series offers even greater sturdiness, suitable for both 19" rack mounting and tabletop enclosures. Its structure is completed by upper and lower covers made of plastic-coated galvanized steel sheet with EMC shielding properties.

The subracks are manufactured according to DIN 41494 standards and designed for use with connectors compliant with DIN 41612, DIN 41617, MIL-C-21097, and subsequent standards. The aluminum elements are protected by a standard "CEPIDINE 3000" shielding chrome coating, which has the same characteristics as ALODINE 1000 but is easier to handle without leaving unsightly marks or stains. Natural or colored anodizing is available upon request.

The side walls can be made of extruded material with flanges for 19" mounting already integrated into the structure. However, in applications where a greater depth of the subrack is required, side walls made of aluminum sheet can be used. In the latter case, the rack is finished with a rear closing bracket and a front flange for fastening.