SET

What SET does

SET Selected Electronic Technologies GmbH is a privately held, family-owned German engineering company founded approximately 1988 and headquartered in Wedel, Schleswig-Holstein. The company develops and manufactures electronic protection devices and systems across three integrated domains: (1) high-voltage interference (HSB) solutions including Reihenschwingkreise (RSK) resonant circuits, thyristor Abgrenzeinheiten (TAK/TAC series), and capacitive Abgrenzeinheiten (CAE series) for protecting steel pipelines and personnel from dangerous touch voltages induced by AC power lines and railway traction systems; (2) cathodic corrosion protection (KKS) equipment including the PROTRONIC digital, PROLINE, and PROTRONIC 1/100–1/500 protection current devices; and (3) autonomous off-grid solar and hybrid power systems including the ISC Smart-Grid controller, COMET modular ~1kW solar unit, and Solar Medicus health-station package.

The company's core technology rests on proprietary hardware designs rated for 80,000–250,000+ hours of operation and a proprietary MAESTRO calculation software used for pipeline interference expert assessments. Generation 2020 product launches introduced higher current-handling capacity (up to 100 kA transient, 1400A short-term discharge). Revenue is generated through a mix of one-time hardware sales, professional services (expert reports/Gutachten, commissioning, and revision measurements per DVGW/EN/DIN/VDE standards), and recurring subscription revenue through the SET DATA-Portal for remote monitoring. Pricing is project-specific via direct quotation, with multi-year contract cadences on hardware deployments. The company serves enterprise customers globally — pipeline operators, utilities, energy companies, and telecommunications providers — through direct field sales from its Wedel headquarters, with devices deployed across Germany, Saudi Arabia, Indonesia, Latin America, and Austria.

SET maintains continuous ISO 9001 certification since 2011 and is currently developing two AI-enhanced R&D projects: MAESTRO21 (AI-augmented calculation software) and ARGUS-KI (predictive maintenance controller in cooperation with Fachhochschule Kiel, funded by Schleswig-Holstein state AI promotion). The business is led by Managing Directors Frederic Korupp (third-generation family) and Manel Callau Lopez, with Karl Korupp as Chairman of the Supervisory Board. No institutional investors, parent companies, or subsidiaries are disclosed.

Name

SET

Legal name

SET selected electronic technologies GmbH

Website

https://set-wedel.de

Company type

Private

Founded year

1988

Operating status

Operating

Headcount range

11–50 employees

Short description

SET Selected Electronic Technologies GmbH is a family-owned German engineering firm that designs and manufactures electronic protection devices for high-voltage-influenced pipelines, cathodic corrosion protection systems, and off-grid solar/hybrid power solutions, serving enterprise pipeline operators, utilities, energy companies, and telecommunications providers globally.

Ownership category

akta.pro rank

Product category

Pipeline Protection Equipment & Engineering Services

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Other Measuring and Controlling Device Manufacturing (334519), Electrical Equipment Manufacturing (33531), Relay and Industrial Control Manufacturing (335314), Switchgear and Switchboard Apparatus Manufacturing (335313)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Measuring & Controlling Devices, Nec (3829), Switchgear & Switchboard Apparatus (3613)

akta.pro primary industry

Protection, Control & Monitoring (Relays, RTUs, Fault Recorders, Condition Monitoring) (IMAGAAAD)

akta.pro secondary industries

Condition Monitoring Sensors & IoT (online/offline monitoring, edge devices) (EUADAJAD), Utility Asset Performance Management & Predictive Maintenance (Grid/Plant IoT) (EUADAPAI), Thyristors (SCRs/Triacs/Diacs) (HDAHAHAF), Power Quality, Metering & Monitoring (HDACAJAG)

Keywords

• Cathodic corrosion protection
• High-voltage interference mitigation
• Pipeline protection systems
• Off-grid solar power
• Expert engineering assessments

Headquarters

HQ city

Wedel

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Sales - Protection Devices: Sale of proprietary electronic protection devices including protection current devices (PROTRONIC series), thyristor boundary units (TAK), series resonant circuits (RSK), capacitor limiting units (CAE), and related equipment for pipeline protection and corrosion protection systems. One-time capital equipment sales typically with long operational lifespans (250,000+ hours).
2. Expert Reports and Assessments: Creation of expert reports (Gutachten) for high-voltage-influenced pipelines using proprietary MAESTRO calculation program. Includes analysis of inductive long-term and short-term interference, capacitive and ohmic influence, with solution proposals for technical implementation.
3. Commissioning and Revision Measurement Services: Commissioning and revision measurements according to current DVGW recommendations and EN/DIN/VDE regulations. Includes service for boundary units and KKS devices with qualified personnel and partner companies.
4. IoT and Remote Monitoring Services: Decentralized data acquisition, data evaluation, and remote data transmission services via SET DATA-Portal. Supplements required annual inspections with continuous monitoring, error identification, and timely correction capabilities.
5. Custom Development Services: Customer-specific development of novel devices and assemblies in cooperation with customers and project partners, leveraging flexibility and interdisciplinary know-how when no market solutions are available.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels8 records

Core offering

SET develops and manufactures electronic protection devices and engineering services for high-voltage-influenced pipelines and cathodic corrosion protection, including Reihenschwingkreise (RSK), Thyristor (TAK/TAC) and Capacitor (CAE) limiting units, PROTRONIC and PROLINE protective current devices, and standalone solar/hybrid power systems such as COMET and Solar Medicus. The company also produces proprietary MAESTRO calculation software, IoT remote monitoring via the SET DATA Portal, and AI-driven predictive maintenance (ARGUS-KI).

Product overview

SET (Selected Electronic Technologies GmbH) is a family-owned German engineering company with over 36 years of experience, offering a unified portfolio of protection and energy systems across three core domains: (1) High-Voltage Influence (HSB) solutions — Reihenschwingkreise (RSK) resonant circuits, Thyristor Abgrenzeinheiten (TAK, TAC, TAK-C) and Capacitive Abgrenzeinheiten (CAE) for protecting pipelines from dangerous touch voltages induced by AC power lines and railway systems; (2) Cathodic Corrosion Protection (KKS) — the PROTRONIC digital, PROLINE, and PROTRONIC 1/100-1/500 protective current device series with smart add-ons (Taktmanager, AC-Splitter, overvoltage protection); and (3) Standalone Solar/Power Solutions — including the COMET and Solar Medicus systems, ISC Smart-Grid controller, and BAE battery distribution. Supporting these are the proprietary MAESTRO calculation software, the SET DATA Portal for remote monitoring (IoT/Remote Services), and the R&D project ARGUS-KI for AI-driven predictive maintenance. Custom developments and commissioning/revision services are also offered.

Differentiator

Problem solved

Functional benefit

Brands

• PROTRONIC: Series of electronic and conventional cathodic protection devices including PROTRONIC digital (up to 20A/40V), PROTRONIC (up to 6W), and Mobiltronic Digital for mobile service use.
• PROLINE
• RSK
• TAK
• TAC
• CAE
• ISC Controller
• COMET
• Solar Medicus
• MAESTRO

Quantifiable outcome

• Devices designed for 80,000-250,000+ hours of operation
• +4 more outcomes

Named customers3 records

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability5 records

Feature10 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Fachhochschule Kiel (University of Applied Sciences Kiel)coreStrategic or Co-development PartnerJoint development partnership for ARGUS-KI project - AI-based μC controller for monitoring and controlling boundary units and protection current devices for gas and product pipelines in the energy sector. SET contributes expertise in development and operation of boundary units, defines use cases and conducts test series. Fachhochschule Kiel contributes competencies in predictive maintenance and develops specific algorithms for components. Research funded by Schleswig-Holstein state AI promotion funds (project number LPW-E/1.2.3/1902).
• Energy Industry Partners (validation partners)minorStrategic or Co-development PartnerPartnership with partners from the energy industry for measurement verification of MAESTRO21 software tool results. Partners provide real-world measurement data for validation of calculation algorithms at actual pipeline facilities.
• BAE Batterien GmbH BerlinminorChannel Partner/ Reseller/ DistributorDistribution partnership for battery products. SET is a long-standing sales partner (Vertriebspartner) of BAE Batterien GmbH Berlin, distributing their full product range of stationary accumulators for solar and industrial applications.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Siemens Energy: Global incumbent in T&D, grid protection, and substation equipment. Competes with SET on grid-side protection/relay technology and has substantially greater scale, R&D resources, and utility relationships.
• Schneider Electric: Global incumbent in energy management and industrial automation. Offers grid protection, power-quality, and asset-monitoring solutions that partially overlap with SET's HSB and KKS offerings.
• TE Connectivity (Raychem): Global incumbent offering cable protection, heat-shrink products, and energy/pipeline connection solutions via the Raychem brand. Broader portfolio but with overlapping pipeline-protection and electrical-infrastructure applications to SET.
• ABB: Global incumbent in electrification, motion, and process automation including grid protection relays and condition monitoring. Broad overlap with SET's protection and monitoring value proposition at much larger scale.

Direct peers

• Pepperl+Fuchs: German manufacturer of industrial sensors and intrinsic safety/condition-monitoring equipment. Comparable through its condition-monitoring and process-instrumentation portfolio addressing similar industrial and utility process-control use cases.
• Phoenix Contact: German manufacturer of industrial connection technology, automation, and electronic interface/condition-monitoring devices. Comparable in product breadth (industrial electronics, monitoring, surge protection) and mid-sized German industrial customer overlap.
• DEHN SE: German family-owned manufacturer of lightning protection, surge protection, and safety equipment for power systems. Directly comparable to SET's HSB portfolio of protection/limiting devices and to its German mid-market industrial customer base.
• Weidmüller: German specialist in industrial connectivity, power conditioning, and electronics for process and energy industries. Overlaps with SET on industrial electronic protection, monitoring, and condition-based solutions sold to utilities and pipeline operators.

Emerging players

• MATCOR: Specialist provider of cathodic protection products and services for pipelines and infrastructure. Direct overlap with SET's KKS (kathodischer Korrosionsschutz) product line and pipeline-operator customer segment.
• Aegion (BrandSafway): Provider of pipeline corrosion protection, rehabilitation, and energy-infrastructure services. Comparable through its cathodic-protection and pipeline-integrity services to utilities and pipeline operators in similar markets to SET.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

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 SET