Rittal Sicherungslastschaltleiste Gr.2 400A 3‑polig SV 9677.20 (9677.200)

Rittal Sicherungslastschaltleiste Gr.2 400A 3‑polig SV 9677.20 is a three-pole fuse load switching bar for integration into distribution and control panels. Designed for centralized switching of fused circuits, this device supports up to 400 A per pole and provides a compact method to isolate, switch and distribute power within industrial and commercial electrical installations. The unit is intended for panel-mounted applications where reliable switching and maintenance isolation are required.

Advantages

The switching bar offers centralized fuse switching for three-phase circuits, reducing wiring complexity and improving serviceability. Its 400 A rating per pole ensures compatibility with medium-power distribution tasks while maintaining a compact footprint suitable for control and distribution cabinets. The device simplifies maintenance isolation and enhances safety by providing a single switching point for grouped fuses.

Key specifications

How to use

Install the switching bar into the intended position within a distribution or control panel following applicable installation standards and panel manufacturer guidance. Connect the incoming and outgoing conductors and fuse holders as specified by the panel design to ensure correct three-pole continuity and protection. Use the device to perform centralized switching of fused circuits and to provide visible isolation during maintenance. Verify electrical connections and polarity before energizing the system and ensure all protective devices and interlocks are correctly configured.

Recommendations

Use the switching bar only within its rated current limits and in combination with appropriate fuse types and ratings for the protected circuits. Perform installation and maintenance by qualified personnel and follow local electrical codes and safety procedures to ensure safe operation.