Why Choose the Rittal SV 9344.030 NH Fuse-Switch Disconnector?
The Rittal SV 9344.030 is an NH size 00 fuse-switch disconnector designed for mounting plate assembly in industrial power distribution and switchgear applications. Rated for a maximum operating current of 160 A and an operating voltage range of 400–690 V AC, three-phase, it combines NH fuse protection, switching and isolation within a compact three-pole device.
Featuring a robust M8 screw electrical connection, the SV 9344.030 accepts round conductors from 10–95 mm² and provides a 20 × 5 mm clamping area for laminated copper bars. The cable outlet may be positioned at the top or bottom, giving panel builders flexibility when arranging incoming and outgoing power conductors within electrical enclosures.
The SV 9344.030 incorporates electronic fuse monitoring and is specifically designed for mounting plate assembly. Its polyamide construction, silver-plated electrolytic copper contact tracks and compact 106 × 194 mm dimensions make it a practical solution for professionally engineered industrial distribution systems requiring monitored NH fuse protection.
Key Advantages
- Combines NH fuse protection, switching and isolation in one compact device.
- 160 A maximum rated operating current for industrial distribution circuits.
- 400–690 V AC three-phase rated operating voltage.
- Designed for standard NH size 00 fuse inserts.
- Integrated electronic fuse monitoring supports monitored power distribution systems.
- Robust M8 screw electrical connection.
- Top or bottom cable outlet provides flexible conductor routing.
- Accepts round conductors from 10–95 mm².
- Designed specifically for mounting plate assembly.
Key Features
- Rittal NH fuse-switch disconnector.
- Design: For mounting plate assembly.
- NH fuse size: 00.
- Rated operating current: Up to 160 A.
- Rated operating voltage: 400–690 V AC, 3-phase.
- 3-pole configuration.
- Electronic fuse monitoring: Yes.
- Electrical connection: Screw M8.
- Cable outlet: Top / bottom.
- 10–95 mm² round conductor connection range.
- 20 × 5 mm clamping area for laminated copper bars.
- Silver-plated electrolytic copper contact tracks.
- Polyamide construction with fire protection corresponding to UL 94.
- Tested in accordance with IEC/DIN EN 60947-3 and DIN EN 60269-2 for fuse inserts.
Compact NH Fuse Protection with M8 Screw Connections
NH fuse-switch disconnectors combine fuse protection with switching and isolation functions, allowing electrical feeders and distribution circuits to be protected and disconnected within a single device. The Rittal SV 9344.030 is designed for NH size 00 fuse inserts and mounting directly onto a mounting plate, making it suitable for conventional enclosure and switchgear layouts where direct busbar mounting is not required.
With a maximum rated operating current of 160 A, a conductor capacity of 10–95 mm² and flexible top or bottom cable routing, the SV 9344.030 supports a wide range of industrial distribution applications. Its M8 screw connections provide robust conductor termination, while integrated electronic fuse monitoring adds useful monitoring functionality to the protective switching arrangement.
Typical Applications
- Industrial switchgear assemblies.
- Mounting plate-based power distribution systems.
- NH fuse-protected feeder circuits.
- Main and sub-distribution panels.
- Machine and plant power distribution systems.
- Motor control and protection assemblies.
- Industrial automation cabinets.
- OEM switchboards and electrical panels.
