Wired distribution busbar Rittal SV 9677.315, 3P, 630 A, polyamide housing

Rittal SV 9677.315 is a wired distribution busbar assembly with three poles and a rated current of 630 A intended for AC 400 V systems. The product uses a polyamide housing that provides electrical insulation and mechanical protection, and it is built for integration into electrical panels and industrial switchgear. The busbar supports the connection of NH fuses and load switching components to facilitate controlled power distribution within switchboards.

Advantages

The polyamide (PA) housing offers durable insulation against electrical contact and environmental stresses while keeping the assembly compact for panel installation. With a 3P configuration and 630 A nominal current rating, the busbar delivers high-current capacity suitable for medium-power distribution. The wired design simplifies installation and connection to NH fuse holders and switching devices, and the component is manufactured by a specialist brand for industrial enclosure and switchgear accessories.

Suitable for

• Power distribution in industrial and commercial electrical panels
• Integration with NH fuse systems and load switching components
• Replacement or upgrade of existing three-pole busbar assemblies in 400 V networks
• Applications requiring insulated busbar housings for safety and space-efficient installation

When it may not be suitable

This busbar is intended for fixed installations in AC 400 V systems and is not designed for portable equipment or low-voltage DC applications. It is sized for up to 630 A; systems that require higher continuous current ratings or different pole counts will need a different busbar solution. Additionally, environments that demand specific chemical resistance or flame-retardant ratings beyond standard polyamide properties should verify material suitability before installation.

Key specifications

• Poles: 3
• Rated current: 630 A
• Rated system voltage: AC 400 V
• Housing material: Polyamide (PA)
• Designed for connection of NH fuses and load switching devices
• Form factor: wired distribution busbar for panel mounting

How to use

Mount the Rittal SV 9677.315 busbar assembly into the designated panel or switchgear location following the panel manufacturer’s instructions and applicable electrical standards. Ensure power is isolated before performing any installation. Connect incoming and outgoing conductors to the busbar terminations and install compatible NH fuse holders or load switching components onto the busbar according to their mounting requirements. Verify electrical continuity and torque terminal connections to the specified values, then restore power and perform functional checks.

What to consider before purchase

• Confirm the system voltage is 400 V AC and the required nominal current does not exceed 630 A.
• Verify compatibility with the panel layout, fuse holders, and switching devices to be used.
• Check clearance, mounting dimensions and any required accessories for secure installation.
• Assess environmental conditions to ensure polyamide housing properties meet site requirements.

Usage recommendations

Install and commission the busbar in accordance with local electrical codes and the equipment manufacturer’s instructions. Use qualified personnel for installation, apply correct torque values to terminations, and select NH fuses and switching devices with matching current ratings to maintain system safety and reliability.