Medium Voltage Switchgear - Protection, continuity, and safety for your power network
Ensure the safe operation of your electrical system with high-performance modular switchgear, designed to comply with the most stringent international standards.
Medium-voltage switchgear is a critical element in electrical distribution, responsible for protection, isolation, and measurement in networks up to 52 kV. They are used in secondary substations, industrial plants, and other facilities with high energy demand, where service continuity and safety are a priority.
At AMPER, our switchgear is designed in compliance with IEC 62271-200, featuring service continuity classification LSC2A-PM and short-circuit withstand capacity up to 21 kA for 1 second. They incorporate internal arc proof (IAC AFLR) systems, ensuring operator and equipment safety.
We offer AIS (Air-Insulated Switchgear) and GIS (Gas-Insulated Switchgear with SF₆) technologies, as well as hybrid versions, adapting to any available space and budget. Their modular design allows configurations ranging from simple disconnection functions to complete protection schemes with vacuum circuit breakers, measurement, and remote control, providing tailored solutions for every project.
Medium Voltage Switchgear - Protection, continuity, and safety for your power network
Ensure the safe operation of your electrical system with high-performance modular switchgear, designed to comply with the most stringent international standards.

Medium-voltage switchgear is a critical element in electrical distribution, responsible for protection, isolation, and measurement in networks up to 52 kV. They are used in secondary substations, industrial plants, and other facilities with high energy demand, where service continuity and safety are a priority.
At AMPER, our switchgear is designed in compliance with IEC 62271-200, featuring service continuity classification LSC2A-PM and short-circuit withstand capacity up to 21 kA for 1 second. They incorporate internal arc proof (IAC AFLR) systems, ensuring operator and equipment safety.
We offer AIS (Air-Insulated Switchgear) and GIS (Gas-Insulated Switchgear with SF₆) technologies, as well as hybrid versions, adapting to any available space and budget. Their modular design allows configurations ranging from simple disconnection functions to complete protection schemes with vacuum circuit breakers, measurement, and remote control, providing tailored solutions for every project.
Features and Benefits
Maximum safety
Internal Arc Classified (IAC AFLR) up to 21 kA for 1s.
Modular design
Customized configurations for each project.
Standards Compliance
Certified according to IEC 62271-200 and other applicable international regulations.
Operational reliability
Service continuity class LSC2A-PM and air-insulated technology with SF₆ gas interruption.
Frequently Asked Questions
Got Questions? We’re Here to Help.
In this section, you’ll find clear answers to the most common questions about our products, services, and energy solutions.
From technical specifications to after-sales support, we’ve gathered the essential information to help you make informed decisions and get the most out of what Atlantic Power has to offer.
If you don’t find what you’re looking for, feel free to contact us. We’re here to assist you.
1. What is medium-voltage switchgear and what is its function?
It is equipment that integrates disconnection, protection, and measurement functions, ensuring the safe and reliable operation of the power network.
2. What is the difference between AIS and GIS switchgear?
AIS: Air-insulated; more cost-effective and easier to maintain.
GIS: SF₆ gas-insulated; more compact and suitable for reduced spaces.
3. What does “Internal Arc Proof” (IAC AFLR) mean?
It means the switchgear is designed to contain and safely channel the energy released in case of an internal arc fault, protecting personnel and the surrounding environment.
4. In what applications is medium-voltage switchgear used?
In secondary distribution substations, industries with high demand, hospitals, corporate buildings, and any installation above 750 kVA in accordance with regulations.
5. Does it require frequent maintenance?
No. However, an annual preventive inspection is recommended to ensure proper operation and the safety of all components.
6. What are the typical voltage and current ratings?
Depending on configuration, units can operate up to 36 kV with rated currents exceeding 1,250 A, and withstand short-circuit currents up to 21 kA for 1 second.
7. What is the expected service life?
When properly maintained, these units can deliver over 25 years of reliable operation, ensuring long-term return on investment.
8. Which international standards do they comply with?
All switchgear solutions are certified to IEC 62271-200 and IEC 60298, meeting global requirements for safety and electrical performance.
9. Can these switchgear systems be expanded or retrofitted?
Yes. Their modular and extendable design allows seamless integration into existing networks without extended downtime.
10. What built-in safety features are included?
Mechanical interlocks, earthing switches, advanced protection relays, and safety interlocking systems prevent incorrect operations and enhance personnel protection.
11. Are they suitable for compact installations?
Absolutely. GIS designs are particularly suited for high-density electrical rooms and urban substations where space is limited.
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Successful Implementations and Related Articles
Explore real implementatios with this equipment, along with technical articles that dive into its performance and field applications.



