Rittal SV 9343.330 NH Fuse-Switch - IEC 947-3
Part Number: 9343330
Manufacturer
Rittal
Part number
9343330
Category
Alt Part Number
SV 9343.330
Quick Summary
Rittal SV 9343.330 NH fuse-switch disconnector enables reliable isolation for 3-pole power distribution in industrial control panels. This device addresses the challenge of safe, failsafe fuse monitoring in compact switchgear where space is at a premium. It complies with IEC/DIN EN 60 947-3 testing and UL 94 fire-rated materials, ensuring electrical safety and flame resistance in harsh environments. By integrating electronic fuse monitoring, it reduces inspection cycles and supports predictive maintenance. The unit also aligns with busbar and conductor standards, enabling faster assembly and consistent performance. These features translate to shorter project timelines and improved system uptime for panel builders and end users alike.
Product Information
Extended Description
9343330 Rittal: SV NH fuse-switch disconnector, size 3, 630 A, 400-690 V, 3-pole, screw M10, with electronic fuse monitoring
Article number
SV 9343.330
Material
Polyamide | Fire protection corresponding to UL 94 | Contact tracks: Electrolytic copper, silver-plated
Colour
Chassis: RAL 7035 | Cover: RAL 7035/7001
Clamping area for laminated copper bars
Clamping area width: 50 mm | Clamping area height: 10 mm
For bar systems with centre-to-centre spacing
60 mm
Cable outlet
Top/bottom
Type of electrical connection
Screw M10
Rated operating current max.
630 A
For NH size
3
Test specification
IEC/DIN EN 60 947-3
Dimensions
Width: 250 mm | Height: 298 mm
Connection for round conductor
10 ‐ 300 mm²
To fit busbars
Height: 5, 10 mm
Rated operating voltage
400 V - 690 V, 3~
Number of poles
3-pole
Packs of
1 pc(s).
Weight/pack
4.38 kg
Copper weight (kg per piece)
1.44
Customs tariff number
85369095
EAN
4028177540477
ETIM 9
EC001040
ECLASS 8.0
27371401
Product description
SV NH fuse-switch disconnector, size 3, 630 A, 400-690 V, 3-pole, screw M10, with electronic fuse monitoring
Feature 3-pole configuration delivers synchronized switching across all three phases, supporting up to 630 A continuous operation. Business impact: robust power path reduces busbar fragmentation and simplifies protection coordination, essential for high-current industrial motors and feeders. Application: switchgear and distribution boards in manufacturing plants. Feature Screw M10 electrical connection provides a secure, vibration-resistant interface. Business impact: reliable torque stability and long-term contact integrity, reducing maintenance intervals. Application: field installations with laminated copper busbars and high-current conductors. Feature Top/bottom cable outlets and 60 mm centre-to-centre spacing enable flexible routing and easy integration with standard bar systems. Business impact: faster panel assembly, minimized enclosure redesigns, and better space utilization. Application: modular switchgear in automotive, process, and heavy industries. Feature Electronic fuse monitoring offers real-time status and fault alerts. Business impact: proactive maintenance, reduced downtime, and clearer fault diagnostics. Application: critical power feeds in distribution panels and control cabinets. Feature UL 94 fire-rated polyamide body and precise dimensions (250 x 298 mm). Business impact: enhanced safety, predictable fit in existing enclosures, and simplified logistics. Application: safety-conscious panel builds with established footprint; supports conductor ranges 10–300 mm² and busbar height options of 5 or 10 mm.
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FAQs
The unit supports top and bottom cable outlets and incorporates a clamping area designed for laminated copper bars (50 mm width, 10 mm height). It is compatible with busbar systems at 60 mm center-to-center spacing and accepts round conductors from 10 to 300 mm², enabling flexible mounting in standard switchgear enclosures.
It is a 3-pole device rated up to 630 A, operating at 400–690 V (3~). The connection uses a screw M10 terminal, and it is designed for NH size 3 with a busbar height accommodation of 5 or 10 mm. Dimensions are 250 mm wide by 298 mm high; copper weight per piece is 1.44 kg.
Yes. It supports laminated copper bars with 60 mm center spacing, accommodates busbar heights of 5 and 10 mm, and offers top/bottom cable routing. This makes it highly compatible with modular switchgear and standard enclosure footprints used in industrial control panels.
The unit is tested to IEC/DIN EN 60 947-3 and uses UL 94 rated fire-protective materials. It is also associated with ETIM 9 EC001040 and ECLASS 8.0 27371401 classifications, ensuring interoperability with procurement and maintenance systems.
Electronic fuse monitoring enables real-time fault visibility, enabling proactive maintenance and faster fault diagnosis. This reduces unplanned downtime, extends fuse life through early alerts, and improves overall equipment reliability—benefiting production throughput and serviceability in mission-critical applications.