General
Scope of delivery	Including mounting hardware
Note	When using the disconnecting bar, the additional touch protection module 9666.060 is required
Width	500 mm
Height	450 mm
Construction size	Width units (BE) at 250 mm: 2, height units (HE) at 150 mm: 3
Suitable for part no.	9344.210, 9344.230, 9344.250, 9344.310, 9344.330, 9344.350

The Rittal SV 9666420 is a disconnector cross-member (ISV) made of sheet steel, specifically designed for mounting NH fuse switch disconnectors of sizes 2 and 3 in a mounting plate construction. It serves as a stable mounting surface for these fuse elements in enclosures and power distribution systems. The cross-member has a width of 500 mm and a height of 450 mm, corresponding to a size of 2 width units (BE) at 250 mm each and 3 height units (HE) at 150 mm each. These dimensions allow integration into standard enclosure constructions, particularly in systems based on mounting plate technology.

Disconnector cross-member is the central term for this product, which functions as a supporting component for NH fuse switch disconnectors. The cross-member is used in enclosures to securely and properly mount the fuse elements. The use of sheet steel as material ensures high mechanical stability and durability under industrial conditions. Mounting is achieved using the included mounting hardware, designed for secure installation on the mounting plate or within the enclosure.

Applications include installation in industrial power distribution systems, particularly in enclosures containing NH fuse switch disconnectors of sizes 2 and 3. The cross-member is compatible with article numbers 9344.210, 9344.230, 9344.250, 9344.310, 9344.330, and 9344.350, which represent NH fuse switch disconnectors. This compatibility enables standardized mounting and simplifies planning of enclosure configurations.

Functions and equipment in detail include the pre-fabricated mounting solution, designed for direct installation on the enclosure mounting plate. The cross-member is intended for use in mounting plate constructions, enabling modular and flexible arrangement of fuse elements. The dimensions of 500 mm width and 450 mm height conform to common standards for enclosure components and allow easy integration into existing systems.

Technology explained simply shows that the cross-member serves as a static support structure, securely holding the NH fuse switch disconnectors during operation and maintenance work. The use of sheet steel provides sufficient strength to withstand mechanical loads from the fuse elements and possible vibrations during operation. Mounting is done via pre-drilled holes and the included mounting hardware, ensuring secure installation.

Compatibility and accessories include use with NH fuse switch disconnectors of sizes 2 and 3, available under article numbers 9344.210 to 9344.350. Additionally, when using the cross-member, the shock protection module 9666.060 is required to meet safety requirements for handling electrical installations. This module protects against unintended contact with conductive parts and is therefore an essential part of the installation.

Mounting and installation are carried out on the mounting plate within the enclosure. The cross-member is secured at the designated position using the included mounting hardware. Positioning follows the enclosure design plan, taking into account the dimensions of 2 BE and 3 HE.

Operational advantages lie in standardized mounting and secure fixation of the NH fuse switch disconnectors. The cross-member enables a clear and organized arrangement of fuse elements, simplifying maintenance and inspection. The use of sheet steel ensures high mechanical stability, even under industrial operating conditions. Compatibility with common NH fuse switch disconnectors reduces planning and installation effort when configuring enclosures.

Sheet steel is the material used, known for its strength and durability in industrial applications. NH fuse switch disconnectors are the electrical fuse elements mounted on the cross-member. Mounting plate construction describes the construction method where components are arranged on a mounting plate within the enclosure. ISV stands for Industrial Standard Supply, indicating use in industrial power distribution systems.

The cross-member is designed for use in enclosures containing NH fuse switch disconnectors of sizes 2 and 3. The dimensions of 500 mm width and 450 mm height conform to standards for enclosure components. Mounting is done on the mounting plate using the included mounting hardware. The shock protection module 9666.060 is additionally required when using the cross-member to meet safety requirements.