Medium / High Voltage

Breakers

Playing a critical role in safely controlling and protecting electrical systems, they are used in everything from substations to industrial facilities - ensuring reliable power distribution and system stability across a wide range of applications.

Medium Voltage Breakers

Delivering robust performance, advanced protection, and seamless integration for critical power infrastructure. From utility substations to industrial operations, they ensure fast, reliable interruption of faults to maintain system integrity and safety. With a focus on reliability, adaptability, and environmental responsibility, this medium voltage solution meets the needs of modern distribution networks—whether for new installations or system upgrades.

Features

  • Dependable Protection: Rapid fault clearing to protect assets and maintain service continuity.
  • Digital Integration: Compatible with automation systems, SCADA, and remote monitoring for intelligent grid management.
  • Sustainable Options: Available in SF₆-free vacuum technology for reduced environmental impact.
  • Flexible Design: Suited for a variety of configurations including indoor, outdoor, and metal-clad enclosures.
  • High Mechanical Endurance: Engineered for thousands of operations, ideal for frequent switching environments.

Technical Specs

  • Voltage Rating: 5 kV to 38 kV
  • Current Rating: Up to 3,000 A
  • Interrupting Capacity: Up to 40 kA
  • Insulation Medium: Vacuum or SF₆
  • Mechanism Type: Spring-charged or magnetic actuator
  • Control Voltage Options: 48V, 110V, 125V, or 250V DC
  • Standards Compliance: ANSI C37 / IEC 62271 series
  • Operating Temperature: -30°C to +55°C
  • Mounting Types: Metal-clad, metal-enclosed, or outdoor-rated
  • Communication Protocols: Modbus, IEC 61850, DNP3, and others

Applications

  • Primary power distribution in utility networks
  • Industrial facilities and process plants
  • Renewable energy systems
  • Transportation and infrastructure projects
  • Commercial and critical power installations

High Voltage Breakers

Designed to isolate faults, interrupt overloads, and maintain grid stability, they are indispensable wherever high-voltage electricity is generated, transmitted, or distributed. Built for longevity and precision, they provide dependable performance across a wide range of industrial and utility-scale applications. Whether deployed in substations, generation facilities, or industrial settings, they are the perfect balance of advanced engineering and robust construction.

Technical Specs

  • Rated Voltage: Up to 800 kV
  • Rated Current: Up to 6,300 A
  • Interrupting Capacity: Up to 80 kA
  • Insulation Medium: SF₆ gas, vacuum, or hybrid systems
  • Operating Mechanism: Spring-operated or hydraulic
  • Breaking Time: ≤ 3 cycles (50/60 Hz systems)
  • Number of Poles: 3 (single or gang-operated)
  • Mounting Type: Dead tank, live tank, or GIS-compatible
  • Temperature Range: -30°C to +55°C (extendable with options)
  • Mechanical Endurance: ≥ 10,000 operations
  • Interface: SCADA/IEC 61850-ready, with remote monitoring options
  • Standards Compliance: IEC, IEEE, and ANSI certifications available

Applications

  • Electrical transmission and distribution substations
  • Power generation facilities (thermal, hydro, nuclear, and renewable)
  • High-voltage direct current (HVDC) converter stations
  • Industrial plants and large-scale manufacturing operations
  • Rail and mass transit power supply systems
  • Offshore and remote energy installations
  • Utility-scale battery energy storage systems (BESS)
  • Grid interconnection points and switchyards

Or contact a Transformer Specialist at 866-983-1300. We offer quick quote returns, fair pricing and speedy lead-times!