
MV Switchgear — Eclipse Range
The Eclipse range by HS Switchgear — 12kV indoor distribution switchgear with vacuum circuit breakers, magnetic actuator technology, and fully SF6-free design for modern, sustainable distribution networks.
Engineering Features
SF6-Free Design
Completely free of SF6 greenhouse gas — environmentally responsible switchgear technology.
Technical Data
| Parameter | Range / Value |
|---|---|
| Rated Voltage | 12 kV |
| Rated Current | 630 / 1250 / 2000 A |
| Short-Circuit Breaking | 25 kA (3 sec) |
| Frequency | 50 / 60 Hz |
| BIL | 75 kV |
| Switching Device | Vacuum Circuit Breaker |
| Operating Mechanism | Magnetic Actuator |
| Protection Class | IP4X |
| Internal Arc | IAC AFLR 25 kA, 1 sec |
| Dimensions (W×D×H) | 600 × 1350 × 2200 mm |
Standard range parameters — custom specifications available on request.
Related glossary terms
IEEE C57.12
ANSI/IEEE distribution transformer standard
ANSI C57.12.00
General requirements liquid-immersed
DOE 2016
US Department of Energy efficiency rule
NEMA TR1
Sound level & loss tolerances
UL Listed
Underwriters Laboratories safety mark
IEEE C57.110
Harmonic-loaded transformer rating
15 kV indoor metal-clad MV switchgear with vacuum circuit breakers and magnetic-actuator operation — fully SF6-free for US ESG-driven decarbonisation. 630 A, 1250 A and 2000 A per IEEE C37.20.2 / ANSI C37.06. Suited to hyperscale data centres, microelectronics fabs, healthcare campuses and US utility indoor substations.
Hyperscale Data Centres · Northern Virginia
Microelectronics & Semiconductor Fabs
US Healthcare Campus MV Distribution
ESG-Driven SF6-Replacement · US Utilities
Federal Government & DOE Sites
Industrial OEM Skid Substations
Where MV Switchgear — Eclipse Range Excel.
Indoor Substations
Primary and secondary distribution in commercial and industrial substations.
Renewable Energy
Medium voltage switching for solar farms and wind park collector systems.
Industrial MV Networks
Factory ring-main and radial distribution at medium voltage level.
Data Centres
Dual-bus MV distribution for Tier III/IV mission-critical facilities.
Frequently Asked Questions
Related engineering tools
Specify, size, and validate this transformer with our free engineering calculators — used by EPCs and consultants worldwide.
Related Knowledge
FAQs, glossary terms and sizing steps mapped to this product.

Ready to Specify MV Switchgear?
Share your technical requirements and our engineering team will provide a detailed proposal with guaranteed performance parameters.


