Rittal 9344310 NH fuse-switch disconnector - 630 A

Part Number: 9344310
Manufacturer
Rittal
Part number
9344310
Alt Part Number
SV 9344.310

Quick Summary

Rittal 9344310 NH fuse-switch disconnector is a robust power-disconnect solution designed for industrial control cabinets and switchgear. Engineers often grapple with mounting compatibility and wiring efficiency in panel builds, but this unit offers mounting plate compatibility and flexible top/bottom cable routing to streamline installation. It complies with IEC/DIN EN 60 947-3 and uses UL 94 flame-rated polyamide housing, with UR considerations noted for special-purpose fuse applications. By selecting this component, buyers gain reliable protection, safe isolation, and installation flexibility that supports faster commissioning and reduced maintenance costs in power distribution architectures. The product also aligns with typical control cabinet procurement goals for supply chain resilience and lifecycle efficiency.

Product Information

Extended Description

9344310 Rittal: SV NH fuse-switch disconnector, size 3, 630 A, 690 V, 3-pole, screw M10, for mounting plate assembly
Article number
SV 9344.310
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 mounting plate assembly
Yes
Cable outlet
Top/bottom
Type of electrical connection
Screw M10
Rated operating current max.
630 A
For NH size
3
Note
The technical data may vary for UR applications. Applications to UR only in conjunction with "Special Purpose Fuses".
Test specification
IEC/DIN EN 60 947-3
Dimensions
Width: 250 mm | Height: 298 mm
Connection for round conductor
10 ‐ 300 mm²
Rated operating voltage
690 V, 3~
Number of poles
3-pole
Packs of
1 pc(s).
Weight/pack
3.82 kg
Copper weight (kg per piece)
1.06
Customs tariff number
85369095
EAN
4028177540736
ETIM 9
EC001040
ECLASS 8.0
27371401
Product description
SV NH fuse-switch disconnector, size 3, 630 A, 690 V, 3-pole, screw M10, for mounting plate assembly
Feature → Business Impact → Application: The SV NH fuse-switch disconnector delivers a 3-pole, 630 A, 690 V capability, enabling safe isolation of heavy-load circuits in high-power cabinets, which reduces unplanned downtime and enhances system reliability in industrial environments. Application: suitable for power distribution systems within manufacturing lines and switchgear assemblies, improving uptime and safety for critical processes. Feature → Business Impact → Application: Mounting plate assembly compatibility simplifies cabinet integration, reducing installation time and risk of misalignment. Application: panel builders and systems integrators benefit from faster commissioning and easier future maintenance. Feature → Business Impact → Application: Top/bottom cable outlets offer routing flexibility, enabling cleaner wiring, reduced heat buildup, and easier future rework in dense control panels. Application: machine builders and OEM panel shops gain design freedom. Feature → Business Impact → Application: Clamping area for laminated copper bars (50 mm × 10 mm) supports secure, low-resistance connections for high-current buses. Application: power distribution blocks and bus-bar assemblies demanding robust conductor interfaces. Feature → Business Impact → Application: Polyamide housing with flame protection (UL 94) enhances equipment safety and compliance in confined cabinet spaces. Application: end-user facilities prioritizing safety standards and risk mitigation. Each feature is designed to improve efficiency, cut total cost of ownership, and support compliant, reliable operation in demanding environments.

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FAQs

The SV 9344.310 is a 3-pole NH fuse-switch disconnector rated for 630 A and 690 V with a screw M10 connection. It supports top or bottom cable outlets, a clamping area for laminated copper bars (50 mm wide by 10 mm high), and requires a mounting plate assembly. Dimensions are 250 mm wide by 298 mm high, with a weight of 3.82 kg per pack and copper weight of 1.06 kg per piece.
This device is designed for power distribution cabinets, switchgear, and machine control panels. It enables reliable disconnection and safe isolation in high-current environments, making it well-suited for panel builders, OEMs, and plant integrators seeking robust protection and modular installation within standard industrial enclosures.
The product aligns with IEC/DIN EN 60 947-3 for electrical protection devices and uses a UL 94 flame-rated polyamide housing. There is a note about UR-related applications requiring Special Purpose Fuses, so users should verify compatibility for UR configurations during implementation.
Install with the mounting plate assembly, use the M10 screws for secure connections, and route conductors via the top or bottom outlets. Ensure a solid copper bus connection within the 10–300 mm² conductor range and verify that cabinet clearances accommodate a 250 mm by 298 mm footprint for safe access and cooling.
By employing this 3-pole, high-current fuse-switch disconnector, projects benefit from improved system reliability, faster installation thanks to mounting plate compatibility, and safer maintenance due to clear, physical isolation. The device supports scalable power distribution in industrial cabinets, reducing downtime, and aligning with long-term ROIs for plant uptime and safety compliance.