Pioneering SF₆-free medium voltage gas insulated switchgear

SF6-free GIS for distribution systems using pure dry-air technology while maintaining advantages of traditional SF₆ GIS.

Compact physical dimensions

Sealed from dust & humidity

Maintenance-free

100% dry-air insulation

Access to gas tank possible
Nuventura's shopfloor where SF6-free gas insulated switchgear (GIS) are assembledeco-friendly badge

Trusted by the industry's top innovators

Proudly ISO Certified for Quality Excellence in Switchgear Manufacturing

Nu1 Technical Specifications

Our gas-insulated switchgear (GIS) combines cutting-edge engineering with sustainable innovation

Parameter
24kV
Single Busbar
36 kV
Single Busbar
RATINGS
International standard
IEC 62271-200
IEEE C37.04
IEC 62271-200
IEEE C37.04
Rated voltage
24 kV
36 kV
Test voltage (PF / Impulse)
50 / 125 kV
70 / 170 kV
Rated frequency
50 / 60 Hz
50 / 60 Hz
Busbar current
2500 A
2500 A
Feeder current
1250 / 2000 A
1250 / 2000 A
Short-time withstand current
31.5 kA / 3s
31.5 kA / 3s
Peak withstand current
78.8 / 81.9 kA
78.8 / 81.9 kA
Internal arc classification
AFLR 31.5 kA / 1s
AFLR 31.5 kA / 1s
DIMENSIONS
Width
650 mm (1250 A)
900 mm (2000 A)
650 mm (1250 A)
900 mm (2000 A)
Height
2400 mm
2400 mm
Depth
1500 mm
1500 mm
DRY AIR INSULATION
Filling pressure (relative)
200 kPa
200 kPa
Minimum operating pressure (relative)
180 kPa
180 kPa
Operating temperature
−5 / +40 °C
−5 / +40 °C
1
Busbar Compartment
2
Low Voltage Compartment
3
Drive Compartment
4
Vacuum Circuit Breaker
5
Cable Compartment
6
Current Transformer
7
Voltage Transformer
8
Pressure Relief Disk
9
Three-Position Disconnector
10
Pressure Relief Duct

Nu2 Technical Specifications

Parameter
24 kV
Single Busbar
Double Busbar
38 kV
Single Busbar
RATINGS
International standard
IEC 62271-200
ANSI/IEEE C37.20.9
IEC 62271-200
ANSI/IEEE C37.20.9
Rated voltage
24 kV
38 kV
Test voltage (PF / Impulse)
50 / 125 kV
80 / 200 kV
Rated frequency
50 / 60 Hz
50 / 60 Hz
Busbar current
2500 A
2500 A
Feeder current
1250 / 2500 A
1250 / 2500 A
Short-time withstand current
25 / 40 kA / 3s
25 / 40 kA / 3s
Peak withstand current
65 / 104 kA
65 / 104 kA
Internal arc classification
AFLR 25 / 40 kA / 1s
AFLR 25 / 40 kA / 1s
DIMENSIONS
Width
650 mm (1250 A)
900 mm (2500 A)
650 mm (1250 A)
900 mm (2500 A)
Height
2400 mm (SBB)
2650 mm (DBB)
2400 mm (SBB)
2650 mm (DBB)
Depth
1800 mm (SBB)
2200 mm (DBB)
1800 mm (SBB)
2200 mm (DBB)
DRY AIR INSULATION
Filling pressure (relative)
140 kPa
250 kPa
Minimum operating pressure (relative)
120 kPa
230 kPa
Operating temperature
−5 / +40 °C
−5 / +40 °C
1
Busbar Compartment
2
Low Voltage Compartment
3
Drive Compartment
4
Vacuum Circuit Breaker
5
Cable Compartment
6
Current Transformer
7
Voltage transformer
8
Pressure Relief Disc
9
Three-Position Disconnector
10
Pressure Relief Duct

Proven performance across critical industries

Substation which can use SF6-free gas insulated switchgear (GIS) in their electrical infrastructure

Grid Infrastructure

For utilities & grid operators

Reduction in operational cost

Grid Connection Points

Network Operations

System Expansion Projects
Industrial factory which can use SF6-free gas insulated switchgear (GIS) within its electrical infrastructure

Industrial Solutions

Reliable power for heavy industry

Process Power Distribution

Hydrogen Production

Manufacturing Plants

Heavy Industry Applications
Wind farm which can use SF6-free gas insulated switchgear (GIS) in their electrical infrastructure

Renewable Energy Integration

Supporting clean energy transition

Solar Park Connection

Wind Farm Integration

EV Charging Infrastructure

Energy Storage Systems
Containerized substation solutions which can use SF6-free gas insulated switchgear (GIS) in their electrical infrastructure

Containerized Solutions

Mobile power excellence

Mining Operations

Temporary Installations

Remote Locations

Mobile Substations

"Our main objective as E.DIS Netz GmbH is to supply our customers with energy reliably and around the clock. Sustainability also plays an increasingly important role in this, which is why we will increasingly evaluate new, SF₆-free alternatives. I am looking forward to the further cooperation with Nuventura to make our network future-proof and at the same time ensure a reliable and sustainable energy supply."

Sales contact person
Andreas Freygang
Project Manager, E.DIS

"We really like the innovative ideas and solutions of Nuventura for an SF6-free medium-voltage-switchgear from environmental and economic points of view. With this solution service-friendly and reliable switchgears with innovative and clever solutions for safe operation will be available."

Sales contact person
Bastian Wölke
Engineering MV-Switchgear, Westnetz GmbH

"What convinced us about nuventura's switchgear are its compact dimensions, which are very similar to those of the classic SF6 GIS, as well as the high degree of flexibility and automation that enable us to connect our newly constructed PV park, our battery storage and the electrolyzer."

Sales contact person
Jörn Hennig
Head of Engineering, APEX Energy Teterow
Man and women agreeing on a partnership related to SF6-free gas insulated switchgear (GIS)

Become a trusted partner and distribute our market-ready solutions

Partner with us for reliable SF₆-free technology and a model that adapts to your business needs.

Project Enquiries

Whether it’s SF₆-free switchgear specifications, partnership opportunities or support – our team is ready to answer your questions and find the right eco-friendly solution for your needs.

If you are evaluating SF₆-free switchgear for a new project or looking to replace conventional GIS, our team can help you define the right technical solution. We support customers with product specifications, project planning, partnership discussions and technical clarification throughout the decision-making process. Whether the application is utility, industrial or renewable energy, we work with you to identify the most suitable configuration for your requirements. Contact us to discuss your project in more detail and explore the best SF₆-free option for your application.

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