Rittal NH fuse load disconnector Group 3 630A 3-pole RX 9362.310

Rittal NH fuse load disconnector Group 3 630A 3-pole RX 9362.310 is a three-pole load-separating device designed for installation in low-voltage switchgear, distribution panels and electrical cabinets. It secures NH-type fuses and provides a reliable means to isolate circuits up to 630 A for maintenance or fault clearing. The unit is intended for systems where safe separation of power is required and where NH fuses are the chosen protective elements.

Advantages

The device offers sturdy mechanical construction and clear pole separation to ensure safe handling during replacement of NH fuses. It supports three-pole switching with consistent contact pressure for dependable current carrying up to the rated 630 A. The compact design is suitable for integration into standard fuse rail systems and distribution assemblies while maintaining visible and secure fuse fixation.

Suitable for

• Low-voltage distribution boards and industrial switchgear
• Electrical cabinets and service panels requiring NH fuse integration
• Maintenance procedures where safe circuit isolation and visible separation are required
• Applications with 3-phase circuits up to 630 A

When it may not be suitable

This load disconnector is designed specifically for NH-type fuses and may not be compatible with other fuse formats or non-standard fuse holders. It is intended for low-voltage systems and is not suitable for high-voltage applications or where different current ratings are required.

Key specifications

• Poles: 3-pole
• Rated current: 630 A
• Fuse type: NH (NH fuse mounting and isolation)
• Function: Load disconnector / fuse holder with visible separation
• Application: Low-voltage distribution and switchgear

How to use

Install the load disconnector into the appropriate fuse rail or mounting frame following local electrical regulations and the equipment manufacturer's guidelines. Ensure power is disconnected and the system is verified safe before fitting or removing NH fuses. When operating the disconnector, use the designated handle or actuator to open the circuit and confirm visible separation of all three poles before commencing maintenance. Tighten any connection terminals to the required torque values and verify correct seating of fuses to maintain reliable contact.

What to consider before purchase

• Compatibility with NH fuse size and the existing fuse rail or holder
• Required rated current and whether 630 A meets system load demands
• Space and mounting dimensions in your switchgear or distribution panel
• Compliance with local electrical standards and installation practices

Usage recommendations

Use this 3-pole NH fuse load disconnector where visible, secure separation and dependable current carrying up to 630 A are required. Verify compatibility with NH fuse format and follow prescribed safety and installation procedures to ensure reliable operation in industrial and commercial low-voltage systems.