Rittal 9677340 Fuse-Switch Disconnector - 3-Pole, 185 mm spacing
Part Number: 9677340
Manufacturer
Rittal
Part number
9677340
Category
Alt Part Number
SV 9677.340
Quick Summary
Rittal 9677340 fuse-switch disconnector provides safe isolation for power distribution in control panels. Engineers often struggle with space limitations and wiring complexity when integrating current transformers in compact switchgear. This unit leverages a slim NH design and a bottom cable outlet to streamline installation, reduce mounting time, and improve panel density. It complies with IEC/DIN EN 60947-3 and uses UL 94-V0 fire-rated polyamide, supporting safe operation in demanding environments. With 3-pole operation, 1250 A current, and 690 V rating, it delivers robust protection while fitting NH size 3 busbar systems, enabling efficient, compliant, and cost-effective voltage isolation in modern automation cabinets.
Product Information
Extended Description
9677340 Rittal: SV NH slimline fuse-switch disconnector, size 3, 1250 A, 690 V, 3-pole, twin track, bolt M12, 185 mm, for current transformer installation
Article number
SV 9677.340
Design
3-pole, switchable
Material
Polyamide | Fire protection corresponding to UL 94-V0 | Contact tracks: Partially silver-plated hard copper
Colour
Chassis: RAL 7035 | Cover: RAL 7001 | Handle: RAL 7016
For NH size
3
For bar systems with centre-to-centre spacing
185 mm
Cable outlet
Bottom
Type of electrical connection
Bolt M12
Number of poles
3-pole
Rated operating voltage
690 V, 3~
Rated operating current max.
1,250 A
Note
When using components on busbars with contact hazard protection cover, the contact terminal must be used
Test specification
IEC/DIN EN 60 947-3
For converter installation
Yes
Dimensions
Width: 200 mm | Height: 670 mm
Connection for round conductor
6 ‐ 240 mm²
To fit busbars
Height: 10 mm
Double disconnector
Yes
Packs of
1 pc(s).
Weight/pack
14.6 kg
Copper weight (kg per piece)
6.838
Customs tariff number
85365080
EAN
4028177705579
ETIM 9
EC001046
ECLASS 8.0
27371402
Product description
SV NH slimline fuse-switch disconnector, size 3, 1250 A, 690 V, 3-pole, twin track, bolt M12, 185 mm, for current transformer installation
Feature: 3-pole, 1250 A, 690 V capability. Business Impact: Supports high-current isolation in medium-voltage panels, reducing the need for additional devices and simplifying single-device protection. Application: Power management and distribution in switchgear assemblies. Feature: NH size 3 compatibility and 185 mm spacing. Business Impact: Standardized mounting footprint accelerates integration with common busbar systems, lowering engineering time. Application: Industrial control panels and transformer installations. Feature: Bottom cable outlet with bolt M12 connections. Business Impact: Safer, neater wiring with easier access for maintenance and fault finding. Application: Cable routing in congested enclosures. Feature: Double disconnector design. Business Impact: Enhanced safety and reliability through redundant isolation paths, supporting safer commissioning and maintenance. Application: Critical power feeds in serving multiple transformers. Feature: UL 94-V0 material and multi-color finish. Business Impact: Improves fire safety compliance and visibility within enclosures, reducing risk and miswiring. Application: Enclosures in harsh environments and high-traffic areas. Feature: Robust dimensions (Width 200 mm, Height 670 mm) and copper-weighted contacts. Business Impact: Mechanical robustness under frequent switching, long service life, predictable torque, and reliable current paths. Application: Heavy-duty industrial switchgear and converter installations. Feature: 1250 A current rating with 690 V operating voltage. Business Impact: Enables high-power isolation without cascading devices, reducing system complexity. Application: Large-scale automation and power distribution cabinets.
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FAQs
The SV 9677.340 is designed for NH size 3 with a center-to-center spacing of 185 mm. It mounts using bolt M12 connections and a bottom cable outlet, accommodating twin-track configuration and enabling straightforward integration with standard busbars in control cabinets. This design minimizes required adapters and supports reliable conductor seating.
The device is rated for 1250 A and 690 V (3-phase). It features a double disconnector for enhanced isolation reliability and uses UL 94-V0 fire-rated polyamide material, contributing to safer enclosure design. It complies with IEC/DIN EN 60947-3, ensuring alignment with common industrial switchgear standards.
Yes, the SV NH slimline design is specifically suited for current transformer installations. With a bottom cable outlet and 3-pole arrangement, it provides a compact footprint. The 185 mm spacing is optimized for standard bar systems, and the unit supports safe, accessible wiring and quick on-site mounting, reducing transformer installation time.
The 185 mm center-to-center spacing aligns with common bar-system layouts, enabling plug-and-play compatibility and reducing interim adapters. This spacing supports clean wiring routes, predictable clearances, and easier fault isolation during maintenance, contributing to lower downtime and improved overall system reliability.
The SV 9677.340 carries a true-to-spec EAN 4028177705579 and is listed with ETIM 9 EC001046 and ECLASS 8.0 27371402 identifiers. It is supplied as 1 piece per pack with a weight of 14.6 kg, and copper weight of 6.838 kg per piece, supporting accurate BOM integration and regulatory compliance in documentation and audits.