
Develops and manufactures custom toroidal transformers and inductors from lot sizes of 1 up to 30 kVA

Induktor GmbH Ringkernbauelemente
Munich · Hungary (Production) · Indonesia (Production)New on Amplifa
About Induktor
Induktor GmbH Ringkernbauelemente is an owner-managed company based in Munich that has been developing and manufacturing custom toroidal transformers and inductors for over 40 years. The components include single-phase and three-phase toroidal transformers with power ratings from 1 VA to 10 kVA (single-phase) or up to 30 kVA (three-phase), frequencies from 10 Hz to 500 kHz, output voltages up to 2,500 VAC, high-current designs up to 250 A and protection classes up to IP65. Unit weights range from 1 gram to 30 kilograms. Development, consulting and complete order processing take place at the Munich site, while production takes place at the manufacturing facilities in Hungary and Indonesia. The products are manufactured according to VDE0570-1, EN 61558-1 and UL/CSA and are used, among other applications, in mechanical and plant engineering, medical technology, high-end audio, solar and photovoltaic technology, and electromobility. Manufacturing is possible from a quantity of 1, including prototype and first-article production as well as special versions such as multiple secondary windings, potting, thermal protection, fuses and magnetic shielding.
- Site
- München
- Processes
- Manufacture of custom toroidal transformers (single-phase), Manufacture of custom toroidal transformers (three-phase), Manufacture of inductors, Development and prototype construction of individual transformers, Special transformer versions (multiple secondary windings, potting, thermal protection, fuses,
- Materials
- VDE0570-1, EN 61558-1, UL/CSA
- Certificates
- ISO 9001:2015
- Industries
- Mechanical and plant engineering, Medical technology, High-end audio, Solar and photovoltaics, Electromobility, EMC measurement technology
- 01
Development and consulting
- 02
Prototype and first-article production
- 03
Manufacturing (Hungary/Indonesia)
- 04
Testing according to VDE0570-1, EN 61558-1, UL/CSA
- 05
Delivery
Technical Design and Standards
VDE0570-1
Standard according to which the transformers are manufactured.
EN 61558-1
Standard for the safety of transformers and reactors.
UL/CSA
Approval standards for the North American market.
Sites

Munich
DEDevelopment, consulting and order processing
Hungary
HUProduction site
Indonesia
IDProduction site
Components



Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of custom toroidal transformers (single-phase)Assembly | – | – | 1 gram – 30 kilograms | 1 piece | – |
| Manufacture of custom toroidal transformers (three-phase)Assembly | – | – | 1 gram – 30 kilograms | 1 piece | – |
| Manufacture of inductorsAssembly | – | – | – | 1 piece | – |
| Development and prototype construction of individual transformersEngineering | – | – | – | – | – |
| Special transformer versions (multiple secondary windings, potting, thermal protection, fuses,Assembly | – | – | – | – | – |
Quality
Manufacturing is carried out according to ISO 9001:2015 and the current standards VDE0570-1, EN 61558-1 and UL/CSA.
| Evidence | Munich |
|---|---|
| ISO 9001:2015 |