Rittal 9677280 NH Slimline Switch Disconnector - 400 A
Part Number: 9677280
Manufacturer
Rittal
Part number
9677280
Category
Alt Part Number
SV 9677.280
Quick Summary
Rittal 9677280 NH Slimline Switch Disconnector is a 3-pole protective switch for 400 A, 400 V power distribution. In practice, engineers seek compact, reliable isolation solutions that fit limited panel depths and challenging wiring routes. This unit is IEC/DIN EN 60 947-3 tested with UL 94-V0 plastic housing, ensuring safe operation and regulatory compliance. Its NH size two configuration, 185 mm busbar spacing, bottom cable outlet, and screw attachment streamline installation while delivering dependable fault isolation. From a total-cost perspective, the compact footprint reduces enclosure depth, while the robust copper contacts and corrosion resistance support long service intervals. The device uses M12 bolts and 6-240 mm² conductor range for flexible, secure wiring in modern switchgear.
Product Information
Extended Description
9677280 Rittal: SV NH slimline switch disconnector, size 2, 400 A, 400 V, 3-pole, bolt M12, 185 mm, cable outet bottom, screw attachment
Article number
SV 9677.280
Design
3-pole, switchable
Function principle
Automatic quick-break contact allows operator-independent switching
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
2
For bar systems with centre-to-centre spacing
185 mm
Cable outlet
Bottom
Type of electrical connection
Screw M12
Installation type
Screw attachment
Number of poles
3-pole
Rated operating voltage
400 V, 3~
Rated operating current max.
400 A
Test specification
IEC/DIN EN 60 947-3
Dimensions
Width: 100 mm | Height: 941 mm
Connection for round conductor
6 ‐ 240 mm²
To fit busbars
Height: 10 mm
Packs of
1 pc(s).
Weight/pack
14.5 kg
Copper weight (kg per piece)
3.747
Customs tariff number
85043129
EAN
4028177806795
ETIM 9
EC001040
ECLASS 8.0
27371401
Product description
SV NH slimline switch disconnector, size 2, 400 A, 400 V, 3-pole, bolt M12, 185 mm, cable outet bottom, screw attachment
Feature: 3-pole, 400 A, 400 V protection provides robust short-circuit isolation in demanding power distribution panels. Business Impact: Enables faster fault clearance and reduces production downtime. Application: Ideal for industrial power distribution in switchgear and control rooms. The 185 mm center-to-center busbar spacing and NH size 2 compatibility simplify integration with common Rittal enclosures and busbar layouts. Feature: Bottom cable outlet and screw/M12 connections support clean, space-efficient wiring. Business Impact: Improves wiring organization, reduces field wiring time, and minimizes enclosure intrusion. Application: Suitable for 6-240 mm² conductors with bottom routing in tight panel spaces. Feature: UL 94-V0 flame-retardant polyamide housing and partially silver-plated copper contacts enhance durability and reliability. Business Impact: Increases safety margins in high-current switching and extends service intervals. Application: Compliance-driven environments requiring robust material performance. Feature: Automatic quick-break contact enables operator-independent switching with dependable isolation. Business Impact: Reduces human error and improves safety during maintenance. Application: Critical in automated lines and switchgear assemblies. Feature: Screw attachment, bolt M12, and precise 185 mm busbar spacing facilitate straightforward installation. Business Impact: Lowers installation time and labor costs, with repeatable mounting accuracy. Application: Supports modular, scalable panel designs and quick field upgrades.
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FAQs
For the SV 9677.280 in NH size 2, ensure the mounting location supports a 185 mm center-to-center busbar arrangement and allows the bottom cable outlet to route conductors without bending beyond 240 mm² capacity. Use the M12 bolts for secure terminal assembly, and verify the enclosure clearance to accommodate a 100 mm width by 941 mm height footprint. Align with the 3-pole configuration to maintain consistent isolation paths and minimize interference with adjacent devices.
The bottom cable outlet enables neater, downward wiring runs, reducing cable clutter at the front of the panel. This improves airflow, simplifies labeling, and accelerates commissioning. In retrofit projects, the bottom routing supports reorganizing existing conductor bundles without relocating the switch disconnector, preserving panel footprint while enhancing serviceability and maintenance access.
The SV 9677.280 is tested to IEC/DIN EN 60 947-3 and utilizes a UL 94-V0 flame-rated housing, providing compliance for European and global panels. The combination of these standards supports safe switching operations, reliable isolation, and reduced risk during maintenance. The 6-240 mm² conductor compatibility further aligns with typical industrial wiring practices and regulatory expectations.
Yes, the device is rated for 6-240 mm² conductors, offering flexible wiring for a range of feeders. Mounting is designed for screw attachment with M12 terminals, compatible with NH size 2 and the 185 mm busbar spacing. This setup supports straightforward field installation, reduces the need for additional adapters, and ensures a secure, vibration-resistant connection in demanding environments.
Choosing the Rittal SV NH slimline provides a compact, space-saving solution that does not compromise current-carrying capacity. With 400 A at 400 V, 3-pole operation, bottom cable outlet, and UL 94-V0 housing, it delivers reliable isolation, straightforward wiring, and robust durability. This makes it well-suited for modern switchgear, control panels, and distribution boards requiring dependable performance and regulatory compliance.