Ralf-Werner Held
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Ralf-Werner Held Email & Phone Number

Senior expert in water cooled transformers, high current application, electrical, conductive and inductive heating at Kerfa GmbH
Location: Hemer, North Rhine-Westphalia, Germany 10 work roles 3 schools
1 work email found @t-online.de LinkedIn matched
✓ Verified August 2026 4 data sources Profile completeness 100%

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Work email r****@t-online.de
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Current company
Role
Senior expert in water cooled transformers, high current application, electrical, conductive and inductive heating
Location
Hemer, North Rhine-Westphalia, Germany
Company size

Who is Ralf-Werner Held? Overview

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Quick answer

Ralf-Werner Held is listed as Senior expert in water cooled transformers, high current application, electrical, conductive and inductive heating at Kerfa GmbH, a with 3 employees, based in Hemer, North Rhine-Westphalia, Germany. AeroLeads shows a work email signal at t-online.de and a matched LinkedIn profile for Ralf-Werner Held.

Ralf-Werner Held previously worked as Head of Technology at Kerfa Gmbh and Managing Partner inductive+conductive heating for process applications at Megatherm Elektromaschinenbau Gmbh. Ralf-Werner Held holds Diplom.Ing. (Fh), Elektr. Energietechnik, Sehr Gut (1,44) from Fachhochschule Dortmund.

Company email context

Email format at Kerfa GmbH

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rheld@t-online.de
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AeroLeads found 1 current-domain work email signal for Ralf-Werner Held. Compare company email patterns before reaching out.

Profile bio

About Ralf-Werner Held

product developmentprototypingassembly and commissioningpatentsmetal spray forminggas dynamic cold sprayconductive heatinginductive heatinginduction billet heaterinductive dryingconsulting & assessment in applications and processes of induction heatingoperational excellenceinduction regulatortransformer with direct water-cooled windingshigh current heatinginduction channel furnacedistribution transformerspower transformers amorphous transformersvoltage regulated transformers (RONT)3D-Distribution transformersSIEMENS S5 PLCSIEMENS S7 PLCSIEMENS TIA V15expert knowledge

Listed skills include Elektrotechnik, Produktentwicklung, Transformator, Manufacturing, and 37 others.

Current workplace

Ralf-Werner Held's current company

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Kerfa GmbH
Kerfa Gmbh
Senior expert in water cooled transformers, high current application, electrical, conductive and inductive heating
Website
Employees
3
AeroLeads page
10 roles

Ralf-Werner Held work experience

A career timeline built from the work history available for this profile.

Head Of Technology

Current

Hagen, Nordrhein-Westfalen, Deutschland

Organization of the efficient development and design process for the manufacturingof heating and insulating systems used for electrically heated ovens and appliances according to customer requirements.Technical responsibility for the maintenance, improvement and optimization of the company's own production facilities and their components.Professional and disciplinary management of the employees of the technical office

Jun 2023 - Present

Managing Partner Inductive+Conductive Heating For Process Applications

Megatherm Elektromaschinenbau Gmbh

Hemer

Development / consulting / planning / organization of continuing and efficient electrical, conductive and induction heating applications as alternative for gas or oil based heating.

Jan 2018 - May 2023

General Manager Inductive Heating For Process Applications

Megatherm Elektromaschinenbau Gmbh

Hemer

Development / consulting / planning / organization of continuing and efficient induction heating applications for industrial production.

Jul 2016 - Dec 2017

Head Of Department For Technology And Development Of Distribution Transformers

Neumark

Planning / organization of the efficient development and construction process in the production for oil distribution transformers (50kVA - 12000kVA)Department size: 30 engineers

Jan 2011 - Jun 2016

Operations Manager

Megatherm Elektromaschinenbau Gmbh

Hemer

Calculation, construction, installation and commissioning of electro-thermal systems and their components

Aug 2003 - Dec 2010

Production Manager

Asa Transformatoren

Arolsen

Herstellung von ölgekühlten Stromrichtertransformatoren

Feb 2003 - Jul 2003

Technical Manager

Megatherm Elektromaschinenbau Gmbh

Hemer

Calculation, construction, installation and commissioning of electro-thermal systems and their components

Jun 2000 - Jan 2003

Chief Designer

Dietze Elektromaschinenbau Gmbh

Kerpen

Induction regulator, induction channel furnace transformer

Apr 1996 - May 2000

Group Leader

B+M Blumenbecker Gmbh

Dortmund

Process automation for foundry technology

Oct 1992 - Mar 1996

Project Engineer

Marx Gmbh & Co Kg

Iserlohn

Calculation of electro-thermal systems and their components

Apr 1990 - Sep 1992
Team & coworkers

Colleagues at Kerfa GmbH

Other employees you can reach at kerfa.de. View company contacts for 3 employees →

3 education records

Ralf-Werner Held education

Fachhochschulreife, Elektrotechnik Und Elektronik, Gut (1,8)

Hellweg Berufskolleg Unna

Facharbeiter, Energieanlagen Elektroniker, Gut (2,0)

Walter Hundhausen Gmbh + Co Kg
FAQ

Frequently asked questions about Ralf-Werner Held

Quick answers generated from the profile data available on this page.

What company does Ralf-Werner Held work for?

Ralf-Werner Held works for Kerfa GmbH.

What is Ralf-Werner Held's role at Kerfa GmbH?

Ralf-Werner Held is listed as Senior expert in water cooled transformers, high current application, electrical, conductive and inductive heating at Kerfa GmbH.

What is Ralf-Werner Held's email address?

AeroLeads has found 1 work email signal at @t-online.de for Ralf-Werner Held at Kerfa GmbH.

Where is Ralf-Werner Held based?

Ralf-Werner Held is based in Hemer, North Rhine-Westphalia, Germany while working with Kerfa GmbH.

What companies has Ralf-Werner Held worked for?

Ralf-Werner Held has worked for Kerfa Gmbh, Megatherm Elektromaschinenbau Gmbh, Sgb-Smit Group, Asa Transformatoren, and Dietze Elektromaschinenbau Gmbh.

Who are Ralf-Werner Held's colleagues at Kerfa GmbH?

Ralf-Werner Held's colleagues at Kerfa GmbH include Talvin Dzhaparov, Serdar Ödemis, Martin Zeufang, and Hassan Moussa.

How can I contact Ralf-Werner Held?

You can use AeroLeads to view verified contact signals for Ralf-Werner Held at Kerfa GmbH, including work email, phone, and LinkedIn data when available.

What schools did Ralf-Werner Held attend?

Ralf-Werner Held holds Diplom.Ing. (Fh), Elektr. Energietechnik, Sehr Gut (1,44) from Fachhochschule Dortmund.

What skills is Ralf-Werner Held known for?

Ralf-Werner Held is listed with skills including Elektrotechnik, Produktentwicklung, Transformator, Manufacturing, Ingenieurwissenschaften, Fertigung, Transformer, and Projektmanagement.

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