Medium Voltage Primary Switchgear

Eaton 12 kV ET1 Alternating-current Metal-enclosed Switchgear

The 12 kV ET1 Alternating-current Metal-enclosed Switchgear
 is an indoor, metal-enclosed, air-insulated medium voltage switchgear. This switchgear combines a new vacuum interrupter and proven epoxy insulation technology, and is fully type tested and optimized for safety, reliability, economy and efficiency. This switchgear can be used in power plants, substations, industrial and mining enterprises and high-rise buildings. Its small 550 mm cabinet frame makes it especially suitable for commercial real estate, data centers, on-site modification and other space-constrained projects.

Core features

Enhanced safety

  • Maximizes personnel safety by controlling without opening door
  • Prevents misoperation with Five Prevention Interlock mechanisms 
  • Benefits from an enlarged pressure relief channel for the circuit breaker compartment and improved heat dissipation for increased safety 

High reliability

  • Uses metal-clad, fully enclosed structure for safety and reliability
  • Equipped with interrupter compartment enclosed in ceramic case, usable up to 30 years
  • Complies with the GB3906 and DL404 standards and all the type tests by the National Quality Supervision and Inspection Center for High Voltage Equipment
  • Improves technical performance with large creepage and composite insulation  

High flexibility

  • With modular cabinet design, supports quick installation and maintenance of modules and the whole cabinet
  • Applies standard widely-compatible components for easy maintenance
Specifications

12kV ET1 Alternating-current Metal-enclosed Switchgear

RATED CURRENT
BREAKING CURRENT
RATED SHORT-TIME WITHSTAND CURRENT (IK)
SWITCHGEAR WIDTH
RATED VOLTAGE 12KV
RATED CURRENT

630/1250A

630/1250/2000A

630/1250A

2500/3150A(4000A FC)

BREAKING CURRENT

25/31.5kA

25/31.5kA

25/31.5/40/50kA

25/31.5/40/50kA

RATED SHORT-TIME WITHSTAND CURRENT (IK)

25/31.5kA, 4s

25/31.5kA, 4s

25/31.5/40/50kA, 4s

25/31.5/40/50kA, 4s

SWITCHGEAR WIDTH

550mm

800mm

800mm

1000mm

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