UniGear Portfolio

Air-insulated switchgear main product line for high demanding applications in primary power distribution.

UniGear is the main product line of ABB’s air-insulated (AIS) indoor switchgear for primary distribution. With more than 25 years in the market, UniGear distributes medium voltage electric power safely and reliably in a variety of high demanding applications such as utility substations, mining, power plants or chemical plants. The UniGear family is fully compliant with most of the international standards.

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25 Years of UniGear

Browse UniGear Portfolio

UniGear ZS1
UniGear ZS2
UniGear ZS3.2
UniGear 550
UniGear 500R
UniGear MCC

TECHNICAL FEATURES

✓ Rated voltage: up to 24 kV
✓ Rated main busbar current: 4000 A
✓ Rated short time current: 63 kA



UniGear ZS1

UniGear ZS1, up to 24 kV, is a medium voltage air-insulated switchgear with withdrawable circuit-breaker for primary distribution suitable for indoor installations.

UniGear ZS1 is built as a single busbar, double busbar or duplex and even double level solution. It is also certified for use in special and harsh applications such as marine and seismic. UniGear ZS1 comes in 500mm, 650mm, 800mm and 1000 mm widths – fully compatible with other UniGear panels. It is fully compliant with the IEC, CSA, GOST, GB/DL standards.
Explore UniGear ZS1

Benefits

  • Manufactured and supported on six continents
  • Safety interlock to avoid maloperation and fully arc-proof
  • Highly customized versions available
  • Switchgear can be back to wall installed

Typical Applications

  • Data centers
  • Utilities
  • Off-shore platforms
  • Power Generation Stations
  • Railways
  • Hospitals

TECHNICAL FEATURES

✓ Rated voltage: up to 36 kV
✓ Rated main busbar current: ...3150 A
✓ Rated short time current: ...31.5 kA/3s




UniGear ZS2

UniGear ZS2, up to 36 kV, is a medium voltage air-insulated switchgear for primary distribution suita-ble for indoor installations. UniGear ZS2 is built as a single busbar or back-to-back in double busbar arrangement. In the double busbar configuration, all significant components are identical to those used for the single busbar units, so the same service and maintenance procedures are guaranteed. It is fully compliant with the IEC standards.

UniGear ZS2 up to 36 kV is available with a wide range of monitoring solutions. Contact us for more information.

Learn more here.


Benefits

  • Fully interchangeable vacuum and SF6 gas circuit breaker
  • Operational safety, circuit-breaker racking in/out with door closed
  • Indoor installation

Typical Applications

  • Wind Farms, Power Stations
  • Transformer Stations
  • Ports, Airports, Railways
  • Shopping Centres

TECHNICAL FEATURES

✓ Rated voltage: 40.5 kV
✓ Rated main busbar current: ...3150 A 
✓ Rated short time current: ...31.5 kA/4s 
✓ Rated power frequency withstand voltage: 95 kV/1min 
✓ Rated lightning impulse withstand voltage: 185 kV





UniGear ZS3.2

UniGear ZS3.2, up to 36 kV (46kV upon request), is a medium voltage air-insulated switchgear for primary distribution suitable for indoor installations. UniGear ZS3.2 is a metal-enclosed switchgear built as a single busbar suitable for the 50/60 Hz three phases power systems. It is fully compliant with the IEC and GB/DL standards and GOST standards. UniGear ZS3.2 is produced in widths 1200 and 1400 mm can be fitted with vacuum circuit breakers. Contact us for more information.

Learn more here.


Benefits

  • Easy to operate and maintain
  • Reliable and robust
  • Compact design for optimized use of space
  • Various panels meet wide range of customer requirements



Typical Applications

Various application in most systems where electrical energy is generated, distributed or utilized.

UniGear 550

UniGear 550, up to 17.5 kV, is a slim medium voltage air-insulated indoor switchgear for primary distribution suitable for indoor installations. UniGear 550 is ideal for applications where space is restricted. It offers a wide range of units and functions. UniGear 550 is fully compliant with the IEC and GB standards. UniGear 550 is entering CLASSIC phase from 01/2025. Contact us for more information.

Learn more here.

UniGear 500R

UniGear 500R, up to 17.5 kV, is space efficient solution air-insulated indoor switchgear for primary distribution suitable for indoor installations. UniGear 500R has been designed with a dedicated three-position disconnector and with the well proven vacuum circuit-breaker Vmax in removable arrangement. It is fully compliant with the IEC and ENA standards. UniGear 500R is entering CLASSIC phase from 07/2025. Contact us for more information.

Learn more here.

UniGear MCC

UniGear Motor Control Center, up to 12 kV, is an air-insulated medium-voltage motor control center (MCC) designed specifically for motor, transformer and capacitor bank switching. UniGear MCC has been designed in width 400 mm, compatible with other panel types from UniGear family. MCC contac-tor is suitable for 1,000,000 of mechanical operations. Contact us for more information.

Learn more here.

Product scope


 UniGear ZS3.2a
 UniGear ZS1UniGear ZS2UniGear ZS3.2UniGear 500RUniGear 550UniGear MCC
Max. Rated voltage24 kV36 kV 40.5 (46) kV17.5 kV17.5 kV12 kV
Max. rated continuous current (busbar/feeder)4000 A3150 A3150 A4000 A
2000 A		4000 A
1250 A		4000 A
400 A
Max. rated short-time withstand current63 kA31.5 kA31.5 kA31.5 kA31.5 kA50 kA
Busbar arrangement(s)Single, Double Busbar, Duplex Single Busbar, DuplexSingle BusbarSingle BusbarSingle BusbarSingle Busbar
StandardsIEC, GB, DL, GOST, Marine,(DNV, Lloyd, RINA, BV, ABS) IEC IEC, GB, DL, GOSTIEC, ENAIEC, GB, DL,  MARINE,(DNV, Lloyd, RINA, BV, ABS)IEC, GOST, GB, DL
IndustriesHigh demanding, incl. harsh applications such as marine, and seismic. Utilities, heavy industry, data centers, renewables, oil&gas, rail and transport, etc. High demanding applications. Utilities, heavy industry, data centers, renewables, infrastructureHigh demanding applications. Utilities, renewablesLight industry, data centers, food & beverage and infrastructure Renewables, light industry, marine, data center, food & beverage and infrastructureChemical, Oil & Gas, heavy industry (mining, metals and minerals) and light industry (food & beverage)

 

For ABB’s UniGear rail portfolio please click here.

 


 

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Smart solutions for UniGear

UniGear’s smart solutions features are designed to help our customers make data-driven decisions. Our customers can benefit from a wide range of monitoring, diagnostic, automation and control features. Contact our sales team to learn more.

Guiding tool to select your ABB MV Switchgear

Do you need guidance on finding the best-suited Medium Voltage Switchgear for your application? 

MV Switchgear Selector

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ABB’s air-insulated switchgear portfolio
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ABB’s primary distribution portfolio
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Service
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Circuit breakers

FAQ

How to choose the right UniGear product for my application?

UniGear offers a wide range of products such as UniGear ZS1, UniGear ZS2, and UniGear ZS3.2 - each designed and optimized for different needs. The right UniGear product will depend on customers’ specific application’s requirements, such as voltage level, current rating and environmental conditions. For more information please see table above or use ABB’s product selector tool. You can also contact our sales team who can help tailor the solution to your exact specifications.

What are the main advantages of UniGear medium voltage switchgear?

UniGear switchgear is renowned for its reliability, safety, and flexibility. Key advantages include the use of ABB components and advanced digital technologies, a compact design, ease of installation, and strong integration capabilities. It also offers enhanced protection and control features, making it suitable for a wide range of high demanding applications. Additionally, it is highly customizable to meet various customer needs. UniGear is supported by comprehensive product lifecycle services.

What are the typical applications for UniGear medium voltage switchgear?

Typical applications include utility substations, industrial plants, commercial buildings, data center and renewable energy installations. UniGear switchgear is versatile and can be used in various demanding environments such as offshore platforms, marine vessels, mining, and chemical plants.

Can UniGear switchgear be integrated with existing control systems?

Yes, UniGear switchgear can be integrated with existing systems via various communication protocols. It also supports IEC 61850 communication protocol, allowing seamless integration with other equipment and systems and ensuring compatibility and ease operation within your existing infrastructure. 

What kind of support and training does UniGear offer for new customers?

 

UniGear offers comprehensive support and training for new customers, including installation guidance, operational training, and ongoing technical support. ABB provides classroom trainings and resources such as manuals, online tutorials, and on-site training to ensure customers can effectively use and maintain their switchgear. You can find more information here.

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