Rittal NH Fuse Switch Disconnector Size 3 630A 3-Pole RX 9362.310

For industrial power distribution where downtime is not an option, the Rittal NH Fuse Switch Disconnector Size 3 stands apart with its 630 A rated current and robust busbar mounting on a 60 mm system. This 3-pole load disconnector accepts NH3 fuse links, providing reliable circuit protection and safe isolation in a compact, self-extinguishing polyamide housing. The silver-plated copper contacts ensure low contact resistance and long service life, while the IP20 protection (with cover) suits it for installation in enclosed switchgear. Engineered to IEC/EN 60947-3 and VDE 0660 Part 107, it delivers dependable performance from -25 °C to +70 °C.

Highlights

• Rated current 630 A, 3-pole, NH3 fuse size
• Rated operating voltage 690 V AC, insulation voltage 1000 V AC
• High short-circuit making and breaking capacity: 50 kA with NH fuse
• Busbar mounting on 60 mm system, screw terminals
• Housing in self-extinguishing polyamide PA 6.6, UL 94-V0
• Silver-plated E-Cu contacts for low losses
• Complies with IEC/EN 60947-3, VDE 0660 Part 107

In daily use

This fuse switch disconnector is built for continuous duty in industrial power distribution and circuit protection. The screw terminals allow secure connection of large conductors, and the busbar mounting simplifies integration into standard 60 mm busbar systems. The IP20 degree of protection (with cover) means it should be installed inside a suitable enclosure to prevent accidental contact. The wide operating temperature range from -25 °C to +70 °C ensures reliable switching even in harsh environments.

Full specifications

• Product type: NH fuse switch disconnector
• Fuse size: NH3
• Rated current (Iu): 630 A
• Number of poles: 3
• Rated operating voltage (Ue): 690 V AC
• Rated insulation voltage (Ui): 1000 V AC
• Rated impulse withstand voltage (Uimp): 8 kV
• Rated short-circuit making capacity (Icm): 50 kA (with NH fuse)
• Rated short-circuit breaking capacity (Icn): 50 kA (with NH fuse)
• Mounting type: Busbar mounting (60 mm system)
• Connection type: Screw terminals
• Degree of protection: IP20 (with cover)
• Housing material: Polyamide (PA 6.6), self-extinguishing UL 94-V0
• Contact material: E-Cu, silver-plated
• Standards: IEC/EN 60947-3, VDE 0660 Part 107
• Operating temperature range: -25 °C to +70 °C
• Switching function: Load disconnector
• Application: Industrial power distribution, circuit protection

Final note

Rittal's RX 9362.310 combines high breaking capacity with a compact, durable design, making it a reliable choice for demanding power distribution applications.