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Medium-voltage switchgear

Power Xpert UX

Eaton’s Power Xpert UX IEC medium voltage switchgear system can be used for a wide range of power distribution and motor control applications at rated voltage levels up to 24 kV. The system is available in single and double busbar (duplex) configurations. Power Xpert UX withdrawable primary switchgear is designed with safety in mind, offering a reliable and flexible solution with a compact footprint. The compact design of Power Xpert UX utilises Eaton’s core technologies of solid cast resin insulation and Eaton’s world leading vacuum switching technology. 

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Rated voltage
up to 24 kV
Rated current
up to 4000 A
Rated short circuit level
up to 50 kA – 3s

Core features

Safe in use

  • Fully insulated and isolated design for maximum safety and reliability
  • Internal arc classification AFLR up to 50 kA – 1s
  • 3rd party type tested according to IEC standards
  • Logical mechanical and electrical interlocks prevent mal operation
  • Operation behind closed doors

 

Maximum uptime with minimal maintenance

  • Withdrawable switchgear up to 24 kV
  • Highest loss of service continuity LSC2B and partition class PM
  • Simplified plant maintenance and operation due to SF₆-free design
  • Low maintenance vacuum circuit breakers and contactors

 

Flexible design

  • Broad range of panel types, features, and options available to ensure a compact footprint for your most demanding applications 
  • Vacuum contactors up to 12 kV for frequently operated loads

 

Environmentally friendly

  • Air, solid cast resin insulation combined with Eaton’s world leading vacuum switching technology

Safe and reliable primary withdrawable switchgear up to 24 kV

The Power Xpert UX design is focused on single pole insulation and isolation of current paths. These arc free zones reduce the potential of internal faults greatly. In case of an internal fault the optional integrated arc absorber technology can exhaust an internal arc inside a switchroom without bringing harm to the staff or equipment. During the operation the racking is behind closed doors to ensure full internal arc containment with an option for full remote operation of the switchgear without entering the switchroom.

Have a look inside our air insulated switchgear

Eaton’s W-VACi type vacuum circuit breaker and our proven W-SLC type vacuum contactor unit are at the heart of our withdrawable switchgear system Power Xpert UX. See how our leading technologies work together to ensure the best results – making what matters work.
Find out more about W-VACi Find out more about W-SLC
Watch the video

SF₆-free switchgear

Power Xpert UX uses vacuum technology instead of SF₆. This eliminates the risk of leakage and minimizes maintenance costs as well as expensive end-of-life disposal procedures - all materials being re-usable or recycled. Eaton campaigns for SF₆-free switchgear to protect our environment.
Find out more

Explore our medium-voltage switchgears

Eaton's medium-voltage switchgear provides centralized control and protection of medium-voltage power equipment and circuits in industrial, commercial, and utility installations involving generators, motors, feeder circuits, and transmission and distribution lines. Find out more about each product below!

Specifications

Technical data

Power Xpert UX 24 dimensions
Please note that the height (C) is based on the use of a 560mm high arc channel and venting of an internal fault outside the switchroom. We also offer solutions for reduced ceiling height and venting of an internal fault inside the switchroom. Contact us for more information!
System Width A (mm) Height B (mm) Height C (mm) Depth (mm)

3.6 / 7.2 kV

Slimline contactor

 400 2200 2760 1770
 

3.6 / 7.2 / 12 kV

Mid-mount contactor

 600 2200 2760 1320
 
3.6 / 7.2 / 12 / 17.5 kV
630 A - 25 kA 600 2200 2760 1320
2000 A - 25/31.5 kA 800 2200 2760 1320
2500 A - 25/31,5 kA 800 2200 2760 1320
1250 A - 40/50 kA 800 2200 2760 1500
2000 A - 40/50 kA 800 2200 2760 1500
3150 A (4000 A FC) - 40/50 kA 1000 2200 2760 1500
 
24 kV
1250 A - 20/25/31.5 kA 800 2320 2880 1570
2000 A - 20/25/31.5 kA 1000 2320 2880 1570
2500 A - 20/25/31.5 kA 1000 2320 2880 1570
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General

Rated voltage  kV 3,6 7,2 12 17,5 24
Lightning impulse withstand voltage kV 40 60 75 95 125
Power frequency withstand voltage kV 10 20 28 38 50
Rated frequency Hz 50/60 50/60 50/60 50/60 50/60
Internal arc classification AFLR kA/s up to 50/1 up to 50/1 up to 50/1 up to 50/1 up to 31,5/1
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Busbar system

Rated voltage kV 3,6 7,2 12 17,5 24 
Rated normal current A 630 ... 4000 630 ... 4000 630 ... 4000 630 ... 4000 630 ... 2500
Rated short time withstand current kA / s 25 ... 50/3 25 ... 50/3 25 ... 50/3 25 ... 50/3 20 ...  31.5/3
Rated peak withstand current kA 63 ... 130 63 ... 130 63 ... 130 63 ... 130 50 ... 82
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Circuit-breaker type W-VACi

Rated voltage kV 3,6 7,2 12 17,5 24
Rated nominal current A 630 … 4000 (FC) 630 … 4000 (FC) 630 … 4000 (FC) 630 … 4000 (FC) 630 … 2500
Rated breaking current kA 25 … 50/3 25 … 50/3 25 … 50/3 25 … 50/3 20 … 31.5/3
Rated short-circuit making current kA 63 … 130 63 … 130 63 … 130 63 … 130 50 … 82
Rated short time withstand current kA/s 25 … 50/3 25 … 50/3 25 … 50/3 25 … 50/3 20 … 31.5/3
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Contactor type W-SLC

Rated voltage kV 3,6 7,2 12
Rated nominal current A 400 400 400
Rated current contactor / fuse combination A max. 200 max. 200 max. 200
Rated breaking current kA 50* 50* 50*
Rated short time withstand current kA/s 6/1 6/1 6/1
Rated peak withstand current kA 15.6 15.6 15.6
*limited by the fuse
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Earthing switch

Rated voltage kV 3,6 7,2 12 17,5 24
Rated short-circuit making current kA 63 … 130  63 … 130  63 … 130  63 … 130  50 ... 82
Rated short time withstand current kA/s 25 …50/3 25 …50/3 25 …50/3 25 …50/3 20 … 31.5/3
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Contactor type W-SLN (Slimline)

Rated voltage kV 3,6 7,2
Rated current contactor / fuse combination A max. 400* max. 400*
Rated breaking current kA 50** 50**
Rated short time withstand current kA/s 6/1 6/1
Rated peak withstand current kA 15,6 15,6
Earthing switch
Rated short-circuit making current kA 15,6 15,6
Rated short time withstand current kA/s 6/1 6/1

*double fuse

**limited by the fuse

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Enclosure data

Rated voltage 3,6 kV 7,2 kV 12 kV 17,5 kV 24 kV
Degree of protection IP4X* IP4X* IP4X* IP4X* IP4X*
Loss of service continuity category LSC2B LSC2B LSC2B LSC2B LSC2B
Partition class PM PM PM PM PM
Standard color RAL7035 RAL7035 RAL7035 RAL7035 RAL7035
*IP41, IP42 or IP44 as an option
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Standards and regulations

Power Xpert UX complies with the most recent IEC regulations:

  • IEC 62271-1 for common specifications
  • IEC 62271-100 for circuit breakers
  • IEC 62271-102 for disconnectors and earthing switches
  • IEC 62271-105 for switch-fuse combinations
  • IEC 62271-106 for contactors and motor starters
  • IEC 62271-200 for metal enclosed switchgear and controlgear
  • IEC 61869-2 for current transformers
  • IEC 61869-3 for voltage transformers
  • IEC 60529 for degrees of protection (IP Code)
  • IEC 61850 for communication networks and systems in substations
  • IEC 61243-5 for live working - voltage detectors - Part 5: voltage detecting systems
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Power Xpert UX production facilities comply with the following standards: 

  • ISO 9001 for quality management
  • ISO 14001 for environmental management
  • ISO 50001 for energy management
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