Rittal 9344330 SV NH fuse-switch - IEC 60 947-3
Part Number: 9344330
Manufacturer
Rittal
Part number
9344330
Category
Alt Part Number
SV 9344.330
Quick Summary
Rittal 9344330 SV NH fuse-switch disconnector provides safe isolation for high-current panel applications. For engineers facing fuse monitoring challenges and space constraints, this unit simplifies mounting and wiring across a 3-pole configuration. CE compliant and tested to IEC/DIN EN 60 947-3, with UL 94 fire-rated polyamide housing and silver-plated copper contact tracks. The device supports 400-690 V operation at up to 630 A, and is designed for mounting plate assemblies with top/bottom cable outlets. By standardizing on this module, design compliance and procurement consistency improve, while installation time, wiring errors, and maintenance costs decrease thanks to integrated fuse monitoring and organized conductor connections.
Product Information
Extended Description
9344330 Rittal: SV NH fuse-switch disconnector, size 3, 630 A, 400-690 V, 3-pole, screw M10, with electronic fuse monitoring, for mounting plate assembly
Article number
SV 9344.330
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
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
400 V - 690 V, 3~
Number of poles
3-pole
Packs of
1 pc(s).
Weight/pack
4.444 kg
Copper weight (kg per piece)
1.06
Customs tariff number
85369095
EAN
4028177542051
ETIM 9
EC001040
ECLASS 8.0
27371401
Product description
SV NH fuse-switch disconnector, size 3, 630 A, 400-690 V, 3-pole, screw M10, with electronic fuse monitoring, for mounting plate assembly
Feature: High-current rating and NH size compatibility. Business impact: Enables protection of large motors and feeders with minimal voltage drop and safe isolation, reducing unplanned downtime. Application: 3-pole, 400-690 V installations in switchgear and control cabinets. Feature: Mounting plate assembly compatibility and top/bottom cable outlets. Business impact: Streamlines installation and reduces wiring complexity; improves serviceability by allowing flexible routing. Application: Retrofit or new panel builds in limited spaces. Feature: Screw M10 terminal connection and copper current path. Business impact: Secure, robust conductor termination with low contact resistance; supports 10-300 mm² conductors. Application: Heavy-duty distribution blocks and NH fuse combinations. Feature: Electronic fuse monitoring. Business impact: Continuous status visibility and proactive fault detection; minimizes downtime and simplifies maintenance planning. Application: Industrial equipment and power distribution panels where reliability matters. Feature: Material, finish, and dimensions. Business impact: UL 94 rated polyamide housing provides fire protection and stable color coding; compact footprint (250 x 298 mm) fits tight panels; copper weight supports healthy current capacity. Application: Enclosures and control cabinets in demanding environments.
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FAQs
Install on a compatible mounting plate assembly using the 3-pole, 400-690 V configuration. Use the M10 screw terminals for secure conductor termination, and route cables via the top or bottom outlets. The unit is designed to fit standard plate layouts and maintains a robust copper current path, minimizing wiring errors during installation and commissioning.
Key ratings include 3-pole operation, 630 A rated current, and a operating voltage range of 400–690 V (3~). It supports round conductors from 10 to 300 mm² and uses screw M10 terminals. The device is intended for mounting plate assemblies in industrial power distribution and switchgear.
The product is CE compliant and tested to IEC/DIN EN 60 947-3. The housing is UL 94 fire-rated polyamide, and the unit uses silver-plated copper contacts. ECLASS and ETIM classifications are provided for standardised procurement and asset data management.
Yes. With a 630 A max current rating and 3-pole design for 400–690 V systems, it is well-suited for protecting motor feeders and critical loads in control cabinets and switchgear. Its mounting-plate compatibility and integrated fuse monitoring streamline installation and ongoing operation.
Integrated fuse monitoring delivers real-time status visibility and facilitates predictive maintenance, reducing unexpected outages. This translates to shorter downtime, faster fault localization, and lower lifecycle costs through more efficient inspection and servicing schedules.