Rittal SV 9343.250 Fuse-Switch - Electromechanical Monitoring
Part Number: 9343250
Manufacturer
Rittal
Part number
9343250
Category
Alt Part Number
SV 9343.250
Quick Summary
The Rittal SV 9343.250 fuse-switch disconnector isolates power in 3-pole, 690 V panels. Engineers often struggle to meet 690 V and 400 A ratings while ensuring reliable fuse monitoring and safe maintenance. CE marking and IEC/DIN EN 60947-3 compliance, along with UL 94 fire classification, support global integration and panel safety. In practice, this translates to faster installation, regulatory alignment, and lower maintenance costs for power distribution cabinets. The design also supports top/bottom cable outlets and compatible busbar spacing, aiding flexible integration in existing or new switchgear installations. Its electromechanical fuse monitoring provides clear fault indication and simplifies commissioning and testing, boosting uptime across demanding environments.
Product Information
Extended Description
9343250 Rittal: SV NH fuse-switch disconnector, size 2, 400 A, 690 V, 3-pole, screw M10, with electromechanical fuse monitoring
Article number
SV 9343.250
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.
400 A
For NH size
2
Test specification
IEC/DIN EN 60 947-3
Dimensions
Width: 210 mm | Height: 298 mm
Connection for round conductor
10 ‐ 240 mm²
To fit busbars
Height: 5, 10 mm
Rated operating voltage
690 V, 3~
Number of poles
3-pole
Packs of
1 pc(s).
Weight/pack
3.68 kg
Copper weight (kg per piece)
1
Customs tariff number
85369095
EAN
4028177540439
ETIM 9
EC001040
ECLASS 8.0
27371401
Product description
SV NH fuse-switch disconnector, size 2, 400 A, 690 V, 3-pole, screw M10, with electromechanical fuse monitoring
Feature: 3-pole, 400 A, 690 V rating with NH size 2. Business Impact: Delivers safe, compliant isolation for high-current feeders, reducing risk of arc flash and enabling reliable protection coordination in switchgear. Application: Suitable for downstream feeders in distribution cabinets and control panels. Feature: Top/bottom cable outlets and screw M10 terminations. Business Impact: Eases wiring, speeds installation, and simplifies field maintenance even in constrained spaces. Application: Ideal for retrofit projects and modular panel builds where cable routing variety matters. Feature: Clamping area for laminated copper bars (50 mm width, 10 mm height) and busbar center spacing of 60 mm. Business Impact: Ensures secure, low-resistance connections with minimal routing effort, improving electrical performance and service life. Application: Aligns with common European busbar schemes in industrial enclosures. Feature: Polyamide housing with UL 94 fire protection; chassis and cover coloring for visibility. Business Impact: Enhances safety and longevity in harsh environments while aiding access control and identification on the shop floor. Application: Applies to control cabinets in manufacturing and process facilities. Feature: Electromechanical fuse monitoring integrated. Business Impact: Improves fault detection and reduces maintenance time through clear indicators and simplified testing. Application: Critical for preventive maintenance programs and uptime optimization in critical power paths. Feature: IEC/DIN EN 60 947-3 (60947-3) test specification compliance. Business Impact: Provides regulatory alignment for international installations, lowering qualification time for audits. Application: Global panel builds and certified equipment rosters benefit from standardized testing. Feature: Dimensions and weight (Width 210 mm, Height 298 mm; Weight 3.68 kg per pack; Copper weight 1 kg). Business Impact: Predictable space planning and accurate BOMs; simplifies logistics and enclosure design. Application: Used in compact, high-density panels and modular switchgear configurations.
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FAQs
Yes. The unit is designed for NH size 2 and features a 50 mm wide by 10 mm high clamping area for laminated copper bars, with a center-to-center spacing of 60 mm to match common busbar layouts, ensuring secure, low-resistance connections in standard switchgear assemblies.
Key specs include a rated operating current of 400 A, rated voltage of 690 V (3-phase), and a 3-pole arrangement. It uses screw M10 connections and supports top/bottom cable outlets, enabling flexible wiring and simplified field termination in modern panels.
Electromechanical fuse monitoring provides real-time fault indication and verifiable status during commissioning. This reduces diagnostic time, helps schedule preventive maintenance, and minimizes unplanned outages by enabling quick isolation and verification of fuse condition.
The device conforms to IEC/DIN EN 60947-3 (IEC 60 947-3) for fuse-switch disconnector requirements and uses UL 94-rated polyamide for fire protection, with CE marking supporting global integration and compliance in regulated environments.
With a width of 210 mm and height of 298 mm, plan for compact enclosures and match the 60 mm busbar spacing. Top/bottom cable outlets simplify routing, and the 3-pole, 690 V, 400 A rating fits high-power distribution schemes while maintaining manageable enclosure depth and mounting clearances.