Bus bar Rittal SV 9640.207 copper 451 mm for electrical distribution

Rittal SV 9640.207 is a single copper bus bar with a length of 451 mm and a cross-section of 974 mm², designed for electrical distribution in switchgear, distribution boards and industrial enclosures. The solid copper conductor and compact dimensions (45 x 45 mm) provide a reliable conductive path for power buses and allow integration into modular distribution systems where a robust, low-resistance connection is required.

Advantages

This copper bus bar offers high electrical conductivity and good thermal stability typical for E-Cu (electrolytic copper) conductors, ensuring low voltage drop and efficient current transfer. Its solid rectangular profile provides mechanical strength for fixed bus arrangements and simplifies bolted connections. The 451 mm length and standardized cross section make it compatible with many panel mounting systems, facilitating installation and maintenance.

Suitable for

• Power distribution buses in electrical switchgear and switchboards
• Connection and bridging of distribution modules in industrial enclosures
• Fixed busbar systems requiring a high-conductivity copper conductor
• Applications demanding a robust, bolted conductive connection

When it may not be suitable

This product is a bare copper bus bar and is not intended as a finished insulated assembly. It may not be suitable where factory-applied insulation, plated finishes, or specific mounting accessories are required. For installations requiring pre-insulated or flexible bus conductors, braid connectors, or significantly different lengths or cross-sections, a different product may be more appropriate.

Key specifications

• Material: electrolytic copper (E-Cu)
• Length: 451 mm
• Profile dimensions: 45 x 45 mm
• Bar cross-section: 974 mm²
• Configuration: solid rectangular bus bar, single piece

How to use

Install the bus bar in accordance with local electrical codes and the enclosure manufacturer's instructions. Position the bar in the intended bus duct or mounting plane, align bolting holes or drilled connection points, and secure with appropriate bolts, washers and torque values for copper conductors. Ensure proper surface contact and, where required, apply anti-oxidation compound to mating surfaces. Verify clearances and phase separation, and perform insulation and continuity checks before energizing the system.

What to consider before purchase

• Verify that the 451 mm length and 45 x 45 mm profile fit the intended enclosure and mounting points
• Confirm the required current-carrying capacity and compatibility of the 974 mm² cross-section with the system design
• Determine whether additional accessories (insulators, covers, bolts, washers, anti-oxidation paste) are needed
• Check local regulations for required clearances, earthing and protective measures for bare conductors

Usage recommendations

Use the Rittal copper bus bar where a solid, low-resistance conductor is needed for fixed power distribution. Coordinate mechanical fastening and surface preparation to maintain low contact resistance, and pair the bar with appropriate insulating guards or covers in live installations to meet safety standards.