What EMA Electromechanics does

EMA Electromechanics is a privately held industrial manufacturer of medium and high voltage electromechanical equipment for power substations, with a strategic focus on renewable energy collection circuits. Founded in 1952 in Buenos Aires, Argentina, the company expanded into the United States in 2010, establishing its headquarters and manufacturing facility in Sweetwater, Texas. EMA operates through two principal entities: EMA Electromechanics, Inc. (USA) and EMA Electromecanica S.A. (Argentina).

The company's flagship offering is the VDH/GSMI, a patented combined 38 kV outdoor vacuum circuit breaker and high-speed mechanically interlocked grounding switch designed specifically for wind and solar energy collection circuits. This product replaces the traditional topology of a grounding transformer combined with a conventional circuit breaker, providing fault differentiation, temporary overvoltage (TOV) mitigation, and low-voltage ride-through (LVRT) compliance with grid codes including PRC-024/2 (USA), PT4 (Argentina), and ONS Submodulo 3.6 (Brazil). The portfolio includes the VDH vacuum circuit breaker (38 kV), VDH 15 (15 kV), HVCB (live-tank SF6 circuit breaker up to 145 kV), and the SKID pre-packaged substation solution. Supporting products include AIGS and SPGR in the utility category. All testing follows IEEE/ANSI standards; the company maintains ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certifications.

EMA generates revenue through direct enterprise sales of hardware to utility companies, wind farm developers, and solar farm developers, supplemented by spare parts, training, and after-sales service. Go-to-market relies on a direct enterprise field sales motion and consistent presence at major industry trade shows (ACP, IEEE PES T&D, RE+, ETC Canada). The installed base comprises over 2,700 breakers across 415 wind and solar projects spanning 38 US states, 7 Canadian provinces, and 6 Mexican states, supporting 65,500+ MW of renewable energy capacity. Five of the top ten largest US wind projects use EMA VDH/GSMI breakers. The company has 11-50 employees, no external funding rounds are disclosed, and ownership is independent.

Name

EMA Electromechanics

Legal name

EMA Electromechanics, Inc

Website

https://emaelectromechanics.com

Company type

Private

Founded year

1952

Operating status

Operating

Headcount range

11–50 employees

Short description

EMA Electromechanics is a privately held manufacturer of medium and high voltage electromechanical equipment for power substations, specializing in patented combined circuit breaker and grounding switch systems for wind and solar energy collection circuits.

Ownership category

akta.pro rank

Product category

Power Distribution Equipment / Electrical Apparatus

NAICS

Electrical Equipment Manufacturing (33531), Electrical Equipment, Appliance, and Component Manufacturing (335)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Power Electronics for Renewable & Grid-Tied Applications (Solar inverters, wind converters, grid-tie interfaces) (IMAGADAJ)

Keywords

• Medium voltage circuit breakers
• Power substation equipment
• Wind energy collection circuits
• Solar farm substations
• Electromechanical apparatus

Headquarters

HQ city

Sweetwater

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Electromechanical Equipment Sales: Manufacture and sale of electromechanical equipment including vacuum circuit breakers, SF6 circuit breakers, and combined breaker/grounding switches for utility and renewable energy applications. Revenue generated from product sales, spare parts, and after-sales service.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

EMA Electromechanics manufactures and sells medium and high voltage electromechanical equipment — primarily vacuum and SF6 circuit breakers, and its patented VDH/GSMI combined breaker/grounding switch — for power substations serving wind farms, solar farms, and utility customers. The company also provides associated spare parts, training, and after-sales service with 24/7 US-based support.

Product overview

EMA Electromechanics manufactures a portfolio of electromechanical equipment for the power generation industry, particularly focused on wind and solar energy sectors. The core product line centers on the VDH/GSMI - a unique and patented combined vacuum circuit breaker and high-speed mechanically interlocked grounding switch specifically designed for wind and solar energy collection circuits. Supporting the VDH/GSMI are standard VDH vacuum circuit breakers (available in 15kV and 38kV variants), the HVCB high-voltage SF6 circuit breaker for utility substations up to 145kV, and the SKID pre-packaged substation solution. The VDH and VDH/GSMI products are the company's flagship offerings, while the HVCB serves utility-scale applications and the SKID provides rapid deployment capability. Products serve low, medium, and high voltage apparatus needs across utility, wind, and solar market segments.

Differentiator

Problem solved

Functional benefit

Brands

• VDH/GSMI: Combined vacuum circuit breaker and high-speed mechanically interlocked grounding switch rated 38 kV, specifically designed for wind energy collection circuits. This is a unique and patented product.

Products and services

• VDH/GSMI Combined Vacuum Substation Circuit Breaker and High-Speed, Mechanically Interlocked Grounding Switch rated 38 kV, 1200 A, 25/31.5/40 kA, designed for wind and solar energy collection circuits. Provides protection for MV collection circuits, TOV mitigation, fault differentiation between internal and external faults, and LVRT compliance with grid codes such as PRC-024/2. Sold to wind farm developers, solar farm developers, and utility companies.
• VDH Vacuum Substation Circuit Breaker up to 38 kV, 3000 A, 40 kA. Used in power substations as main breaker and bus-tie breaker, and ideal for switching and protection of feeders, shunt capacitor banks and reactors. Sold to utility companies, wind and solar farm developers.
• VDH 15 Vacuum Substation Circuit Breaker up to 15 kV, 3000 A, 40 kA. Used in power substations as main breaker and bus-tie breaker, and ideal for switching and protection of feeders, shunt capacitor banks and reactors. Sold to utility companies, wind and solar farm developers.
• HVCB Live tank, free-standing three-pole outdoor SF6 Circuit Breaker for power substations up to 145 kV, available in 1200 A, 2000 A, and 3000 A current ratings, for main breaker and bus-tie breaker applications. Sold to utility companies and large industrial customers.
• SKID Pre-packaged VDH or VDH/GSMI Breakers Substation — a ready-to-install solution designed for fast and reliable substation deployment. Targets utility-scale wind and solar developers needing accelerated project schedules.
• AIGS Utility-category electromechanical product from EMA's product line; specific technical details not provided in available source material. Sold to utility customers.
• SPGR Utility-category electromechanical product from EMA's product line; specific technical details not provided in available source material. Sold to utility customers.
• Training, Spare Parts and After-Sales Service Associated services including customer training, spare parts supply with overnight courier delivery to jobsites worldwide, and 24/7 USA parts and service backup. Sold alongside equipment to wind, solar, and utility customers.

Quantifiable outcome

• Over 2,700 breakers supplied to the market
• +3 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Texas State Technical College (TSTC)minorOthers · 1 October 2020EMA partnered with TSTC to facilitate education for veterans. EMA provides up to $2,500 per year in scholarship funds to veterans seeking college education at TSTC campuses. This partnership supports the local community and veteran workforce development.

Scale indicators5 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• ABB: Global electrical equipment giant offering medium- and high-voltage circuit breakers, switchgear, and substation solutions across utility, wind, and solar markets. Directly competes with EMA on substation breaker projects but at vastly broader scale and portfolio depth.
• Siemens: Major manufacturer of medium- and high-voltage switchgear and vacuum circuit breakers for utility substations and renewable collection circuits. Overlaps with EMA's VDH and HVCB product lines through its Smart Infrastructure and Energy divisions.
• Eaton: Diversified power management company producing medium-voltage vacuum circuit breakers and switchgear for utility, renewable, and industrial customers. Competes with EMA in utility substation and wind/solar collection-circuit breaker applications.
• Schneider Electric: Global electrical equipment and automation company offering medium-voltage switchgear and circuit breakers for utility and renewable energy applications. Overlaps with EMA's product portfolio in substation and collection-circuit equipment.
• Hitachi Energy: Specialist in transmission and distribution equipment including SF6 and vacuum circuit breakers up to 145 kV and beyond. Directly competes with EMA on utility substation breaker specifications including HVCB-class products.
• Toshiba Energy Systems & Solutions: Manufacturer of high-voltage gas-insulated and vacuum circuit breakers for substations. Competes with EMA on the HVCB-class 145 kV breaker specification and offers broader high-voltage transmission equipment.

Direct peers

• Powell Industries: US-based manufacturer of medium-voltage switchgear and power distribution equipment for utility, renewable, and industrial markets. Closely comparable business model to EMA — custom-engineered electrical equipment for substation and process applications.
• S&C Electric Company: Specialist in switching and protection equipment for utility substations and renewable energy collection circuits. Closely comparable to EMA's focus on collection-circuit protection and grounding, with strong utility customer overlap.
• G&W Electric: Manufacturer of medium-voltage switchgear, reclosers, and solid-dielectric switching products for utility and renewable applications. Overlaps with EMA's VDH vacuum breaker and substation offerings.

Emerging players

• NOJA Power: Specialist in medium-voltage outdoor switchgear and auto-reclosers for distribution and renewable energy networks. Comparable niche focus to EMA on switchgear for inverter-based generation and collection circuits.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about EMA Electromechanics