Rittal SV 9343.140 Fuse-Switch Disconnector - Monitoring
Part Number: 9343140
Manufacturer
Rittal
Part number
9343140
Category
Alt Part Number
SV 9343.140
Quick Summary
Rittal SV 9343.140 fuse-switch disconnector is designed to provide safe isolation in power management and distribution enclosures. Engineers often contend with limited panel space, wiring complexity, and the need for reliable fuse monitoring to minimize downtime. This device meets IEC/DIN EN 60 947-3 and UL 94 fire protection standards, uses copper contacts silver-plated for longevity, and features a box-terminal connection for robust, service-friendly wiring. With 3 poles, NH size 1, and a 690 V rating, it delivers precise switching while supporting top or bottom cable outlets. For manufacturers and integrators, the combination of compact form, certified safety, and integrated fuse monitoring translates into faster commissioning, improved reliability in control cabinets, and better overall power-management performance.
Product Information
Extended Description
9343140 Rittal: SV NH fuse-switch disconnector, size 1, 250 A, 690 V, 3-pole, box terminal, with electromechanical fuse monitoring
Article number
SV 9343.140
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: 20 mm | Clamping area height: 3 mm
Note
Connection of sector-shaped conductors 50 – 150 mm².
For bar systems with centre-to-centre spacing
60 mm
Cable outlet
Top/bottom
Type of electrical connection
Box terminal
Rated operating current max.
250 A
For NH size
1
Test specification
IEC/DIN EN 60 947-3
Dimensions
Width: 184 mm | Height: 298 mm
Connection for round conductor
35 ‐ 150 mm²
To fit busbars
Height: 5, 10 mm
Clamping area for laminated copper bars
14 mm
Rated operating voltage
690 V, 3~
Number of poles
3-pole
Packs of
1 pc(s).
Weight/pack
2.86 kg
Copper weight (kg per piece)
0.44
Customs tariff number
85369095
EAN
4028177540361
ETIM 9
EC001040
ECLASS 8.0
27371401
Product description
SV NH fuse-switch disconnector, size 1, 250 A, 690 V, 3-pole, box terminal, with electromechanical fuse monitoring
Feature: 3-pole NH size 1 design supports up to 250 A at 690 V. Benefit: Enables high-current, three-phase switching in compact enclosures, reducing panel width and simplifying layouts. Application: Ideal for power distribution cabinets in industrial automation where space is at a premium and reliability is essential. Feature: Box-terminal connection for wiring. Benefit: Streamlines installation and reduces wiring errors, accelerating commissioning and serviceability in control panels. Application: Suitable for machine builders needing quick, robust terminations. Feature: Electromechanical fuse monitoring integrated. Benefit: Improves fault detection and maintenance planning, lowering downtime and improving safety. Application: Critical in panels with frequent fuse checks and quick fault diagnosis. Feature: Material and safety ratings (UL 94 polyamide, silver-plated copper). Benefit: Enhanced flame retardancy and durable electrical contacts for longer life. Application: Harsh industrial environments where thermal and chemical resistance matters. Feature: Busbar and conductor compatibility (top/bottom cable outlets, compatible with sector-shaped conductors 50–150 mm², and laminated copper bars). Benefit: Flexible wiring options support modular layouts and faster wiring harness integration. Application: Ideal for modular power distribution in大型 enclosures and turnkey switchgear.
Get a Quick Quote for a Rittal 9343140
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Rittal 9343140?
Enquire Now
FAQs
To install, verify enclosure clearance and mount the unit on a suitable frame using the box-terminal wiring. Use the top or bottom cable outlets as permitted and ensure the center-to-center busbar spacing is 60 mm. The device is a 3-pole NH size 1 unit rated for up to 250 A at 690 V, so allocate space for copper terminations and the fuse monitor. Wire routing and secure connections are simplified by the box-terminal design.
The SV 9343.140 is rated for up to 250 A and 690 V (3-phase). It features 3 poles and NH size 1, with a box-terminal connection. It supports conductors from 35 to 150 mm² for round conductors and sector-shaped conductor ranges up to 150 mm². Alignment with IEC/DIN EN 60 947-3 ensures compliance for controlled isolation and safe switching in industrial environments.
Yes. The fuse-switch disconnector supports laminated copper bars and sector-shaped conductors. It specifies clamping areas for laminated copper bars and accommodates busbar heights of 5 and 10 mm, enabling flexible mounting in modular enclosures. For round conductors, 35–150 mm² is supported, while sector conductors span 50–150 mm², aligning with common panel wiring practices.
The SV 9343.140 adheres to IEC/DIN EN 60 947-3 for electrical safety testing and carries UL 94 fire-protection compliance for the polyamide body. These certifications support audit-ready safety documentation and reliable performance in industrial applications, complementing ECLASS ETIM classifications for procurement.
Each pack contains 1 piece with a weight of 2.86 kg. Copper weight per piece is 0.44 kg. The assembly footprint is 184 mm wide by 298 mm high, and the unit is designed for straightforward handling and installation within standard control cabinets, aiding accurate inventory planning and reducing shipment risk.