What Toroid do Brasil does

Toroid do Brasil Indústria e Comércio de Transformadores Ltda. is a Brazilian manufacturer of toroidal transformers, current transformers, inductors, filters, and chokes, founded in 1994 by Swedish engineer Lars Christian Ennerfelt Schnock in São José dos Pinhais, Paraná. The company designs and builds electromagnetic components using toroidal core technology with a closed magnetic-flux path built on oriented grain silicon steel (GO steel), which delivers efficiency above 90%, magnetic losses of only ~5% versus up to 30% in conventional E-I transformers, isolation ≥4000V between windings, voltage regulation up to 1%, and significantly reduced acoustic and electromagnetic noise. Its product portfolio spans toroidal power transformers (5VA-15kVA, including the premium TdB line), current transformers for measurement and protection (10A-5000A, precision classes 0.3%-1.2%), toroidal inductors and common/differential-mode chokes, saturable reactors for short-circuit protection, single-phase voltage regulators with integrated toroidal sensing, and bespoke custom-engineered solutions.

The company operates a 100% Brazilian manufacturing model under ISO 9001:2015 certification, with a US sales office in Salisbury, Maryland supporting North American customers. It sells exclusively through direct B2B channels — WhatsApp, phone, website contact form, and email — with custom quote-based pricing on every order and no public price list or distributor network. Customer applications span industrial automation, audio/Hi-Fi systems, photovoltaic generation, diesel generators, electrical panels, distribution-utility automatic reclosers, SCADA integration, lighting, automotive audio, and sensitive environments (hospitals, studios, data centers). The named enterprise customer base is limited in disclosure, with ARTECHE identified for toroidal current transformers in automatic reclosers, and the 2024 ESG em Foco seal from Sistema Fiep signals recent activity around sustainability positioning.

Name

Toroid do Brasil

Legal name

TOROID DO BRASIL IND E COM DE TRANSFORMADORES LTDA

Website

https://toroid.com.br

Company type

Private

Founded year

1994

Operating status

Operating

Short description

Toroid do Brasil is a Brazilian manufacturer of toroidal transformers, current transformers, inductors, and electromagnetic components serving industrial automation, audio, photovoltaic, electrical distribution, and sensitive-environment applications, with 30 years of operation, ISO 9001:2015 certification, and direct B2B custom-quote sales in Brazil and the US.

Ownership category

akta.pro rank

Product category

Electrical Transformers and Electromagnetic Components

NAICS

Power, Distribution, and Specialty Transformer Manufacturing (335311), Electrical Equipment Manufacturing (33531)

SIC

Power, Distribution & Specialty Transformers (3612), Electronic Coils, Transformers & Other Inductors (3677), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

Transformers (Power, Distribution, Instrument, Specialty) (IMAGAAAA)

akta.pro secondary industries

Transformers & Magnetics (Power/Signal) (HDAHANAD), Instrument Transformers (CTs/VTs) & Sensors (Conventional/Optical) (EUADACAG), Power Transformers, Reactors & Auxiliary Power Systems (EUADACAJ)

Keywords

• Toroidal transformers
• Current transformers
• Power inductors
• Electromagnetic components
• Custom transformers

Headquarters

HQ city

São José Dos Pinhais

HQ country

Brazil

HQ region

Latin America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Toroidal Power Transformers: Sale of toroidal power transformers (TdB line) ranging from 5VA to 15kVA for industrial, commercial, and residential applications including automation, audio, medical, and lighting systems.
2. Current Transformers (TC): Sale of current transformers for measurement and protection applications in electrical distribution, panels, generators, photovoltaic systems, and automatic reclosers.
3. Inductors and Chokes: Sale of toroidal inductors for filtering, power supplies, DC-DC converters, and EMI suppression in various electronic applications.
4. Custom Engineering Projects: Custom transformer and electromagnetic component solutions designed and manufactured to customer specifications for unique applications, involving engineering consultation and tailored manufacturing.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Toroid do Brasil designs and manufactures toroidal voltage transformers (5VA to 15kVA), toroidal current transformers (10A to 5000A), toroidal inductors/filters/chokes, saturable reactors, single-phase voltage regulators, and custom-engineered electromagnetic components for industrial automation, audio/Hi-Fi, photovoltaic, distribution utility, and sensitive-environment applications. All products are 100% manufactured in Brazil using proprietary closed-magnetic-flux toroidal core technology.

Product overview

Toroid do Brasil is a manufacturer of toroidal transformers, current transformers, inductors, and related electromagnetic components. The product portfolio centers on three main categories: Toroidal Power Transformers (TP) including the TdB line for voltages up to 15kVA, Current Transformers (TC) for measurement and protection applications ranging from 100A to 5000A, and Inductors/Filters/Chokes for signal filtering and EMI reduction. The company also offers saturable reactors for circuit protection and custom-engineered solutions. Products are designed for applications including industrial automation, audio systems, photovoltaic systems, automotive sound, lighting, SCADA systems, and sensitive environments such as hospitals and laboratories. All products are manufactured in Brazil with ISO 9001:2015 certification.

Differentiator

Problem solved

Functional benefit

Brands

• TdB: Product line of toroidal power transformers featuring efficiency above 90%, isolation ≥4000V, compact design, and customization options for industrial, audio, medical, and automation applications.

Products and services

• Toroidal Current Transformers (TC) Toroidal current transformers designed to detect and measure electrical current flowing through cables or busbars, converting it to a lower value for measurement instruments or electronic circuits. Available types include window (janela), split-core (bipartido), bar (barra), bushing (bucha), and wound (enrolado). Ranges from 10A to 5000A, internal diameter from 5mm to 350mm, voltage classes up to 1.5kV, precision classes 0.3% to 1.2%. Used by electrical distribution utilities, panel builders, generator manufacturers, and photovoltaic system integrators.
• Toroidal Voltage Transformers (TP) Toroidal voltage transformers (also called power transformers) that convert input voltage to different output voltages. Include autotransformers and isolation transformers with power ranging from 5VA to 15kVA. Offer isolation between windings ≥4000V, voltage regulation up to 1%, and efficiency above 90%. Used in industrial automation, audio equipment, photovoltaic systems, lighting, and sensitive environments.
• Toroidal Inductors, Filters, and Chokes Electronic components that resist alternating current variations by storing energy in a magnetic field. Include common mode inductors (500µH to 30mH) and differential mode inductors (10µH to 5mH) with iron powder, ferrite, or silicon steel cores. Finishing options include Mylar film, epoxy resin, and liquid insulating tape. Used for filtering, power supplies, DC-DC converters, and EMI suppression.
• TdB Line Toroidal Power Transformers Premium line of toroidal power transformers featuring efficiency above 90%, isolation equal to or greater than 4000V, compact design, and quiet operation. Capacity up to 10kVA with customizable voltages, frequencies (50Hz to 800Hz), and encapsulation options. Suitable for industrial automation, audio equipment, voltage inverters, lighting, and sensitive environments.
• Audio Output Transformers Toroidal transformers designed for audio output applications in digital amplifiers, providing clean and silent power supply for professional audio systems. Targeted at recording studios, professional audio equipment manufacturers, and Hi-Fi enthusiasts requiring noise-free power for sound fidelity.
• ISOBOX Audio Output Transformer Module Audio output transformer module designed for isolation and clean power delivery in audio applications. Provides galvanic isolation and EMI shielding for professional audio installations requiring silent operation and stable voltage.
• Saturable Reactors (Reatores Saturáveis) Saturable reactors designed for critical circuit protection, limiting short-circuit current through controlled saturation with response time under 1 millisecond. Ideal for relays, motors, generators, and electrical panels requiring fast fault current limiting.
• Single-Phase Voltage Regulator (Regulador de Tensão Monofásico) Single-phase voltage regulator using integrated toroidal current transformers for continuous monitoring and automatic voltage adjustment, maintaining stable output despite input fluctuations. Provides stability and protection for electrical networks.
• Custom / Made-to-Order Transformers and Electromagnetic Components Custom engineering and manufacturing services for transformers and inductors tailored to specific project requirements, including custom voltages, power ratings, frequencies, encapsulation, and mounting methods. Engineering consultation and tailored manufacturing for unique applications not served by standard catalog products.

Quantifiable outcome

• Efficiency above 90% (magnetic losses only 5% vs up to 30% in conventional transformers)
• +4 more outcomes

Named customers1 record

Segments12 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

One partnership is on record.

• Sistema FiepcoreStrategic or Co-development Partner · 11 June 2024Partnership for ESG mentorship program with Sistema Fiep to enhance corporate sustainability approach. The mentorship resulted in the company receiving the 'ESG em Foco' seal, recognizing exemplary performance in social, environmental, and governance dimensions.

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• WEG: Major Brazilian manufacturer of electrical equipment, motors, generators, transformers, and automation products. Competes broadly in the same Brazilian industrial market but as a much larger, diversified incumbent rather than a toroidal specialty maker.
• Siemens Energy: Global energy technology company producing power and distribution transformers, grid technologies, and industrial power solutions with significant operations in Brazil. Overlaps with Toroid in power and instrument transformer categories and in utility customers, but as a broad incumbent.
• ABB: Global leader in transformers, switchgear, and grid equipment, including instrument transformers and power transformers sold in Brazil. Overlaps with Toroid's power and current transformer product lines but as part of a much wider portfolio at much greater scale.
• Eaton: Global power management company with electrical components, transformers, and power quality products serving industrial, utility, and data center customers. Comparable in transformer and power-quality use cases that overlap with Toroid's sensitive-environments and industrial segments.
• Schneider Electric: Global electrical equipment, distribution, and industrial automation provider with transformer, switchgear, and panel product lines sold in Brazil. Comparable end-customer overlap in industrial panels and distribution utilities but at vastly greater breadth and scale.

Direct peers

• Coilcraft: US-based manufacturer of inductors, transformers, and EMI/RFI filters for power and signal applications. Comparable in inductor and filter product categories and in serving power electronics OEMs.
• Triad Magnetics (Bel Fuse): US manufacturer of custom magnetics, transformers, inductors, and chokes serving industrial, audio, and power conversion markets. Overlaps directly with Toroid's power transformer, inductor, and choke product lines and custom-engineering approach.
• Pulse Electronics (Yageo): Global manufacturer of magnetic components including power transformers, current sense transformers, and inductors. Closely comparable in CTs, power magnetics, and custom-engineered magnetics for industrial and renewable energy applications.
• Hammond Power Solutions: Canadian manufacturer of dry-type transformers, reactors, and magnetics, including toroidal and control transformer lines. Directly comparable in product portfolio and industrial/commercial customer mix, with significantly larger scale and global distribution.
• Toroid Corporation of Maryland: US-based sister company founded by the founder's brother in 1982, manufacturing toroidal transformers, inductors, and custom magnetics. Operates as the closest direct counterpart in product, technology, and customer base, though it serves primarily the North American market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• Instagraminstagram.com/toroidbrasil

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Toroid do Brasil