ALL ABOUT BLOCK

ALL ABOUT BLOCK
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ALL ABOUT BLOCK

Product catalog summary

Company Overview and History

Founded in 1939, BLOCK is a well-established company specializing in electrical engineering and power electronics. Under the leadership of owner and CEO Wolfgang Reichelt since 1971, the company has focused on innovation, resource efficiency, and ethical business practices, building nearly 80 years of expertise.

Leadership and Management

The management team comprises experienced leaders across key functions including development, sales, human resources, R&D, finance, production, purchasing, and innovation. This diverse leadership supports BLOCK’s strategic growth and operational excellence.

Facilities and Global Presence

BLOCK operates extensive production and storage facilities totaling over 30,000 m² in Verden, Germany, with ongoing expansions to maintain quality and independence through in-house manufacturing. Internationally, production units in Franklin Park, USA (2,500 m²), and Kunshan, China (1,800 m²) enable local market support with German-engineered products.

Product Range and Industry Reach

The company offers a broad portfolio including transformers, power supplies, electronic circuit breakers, reactors, and EMI filters. Serving over 4,000 customers in 60 countries and more than 50 industries, BLOCK’s products range from small PCB transformers to large transformers exceeding 2.7 tons and 1 MVA power ratings.

Research and Development

With a dedicated team of over 60 engineers and technicians, BLOCK invests heavily in R&D. Collaborations with universities and industry partners focus on cutting-edge technologies such as collaborative robots, wide-bandgap semiconductors, 3D printing, and innovative product designs like Future Winding for inductors and filters. The CoCreationCenter (C3) enables rapid, customer-focused development using digital twin technology.

Innovation Highlights

  • EasyB Circuit Breaker: A modular 24 Vdc system known for compactness, high current capacity, automatic addressing, and additional switch-on functions, recognized with industry awards.
  • Future Winding Technology: Advanced coil design improving inductive component performance.
  • Transformer-Reactor Combination: Integrated cooling ducts and forklift slots enhance heat dissipation and handling.
  • Power Mini Series: Compact, robust switched-mode power supplies awarded the RedDot Design Award.
  • Railway Quality Products: Designed and tested to meet stringent standards for regional and metro trains, including applications in Shanghai.

Customer-Centric Custom Solutions

Approximately 80% of sales derive from custom solutions, with integrated development, manufacturing, and certification capabilities enabling rapid, competent responses to demanding sectors such as rail and medical technology.

Workforce and Training

Employing around 1,200 people worldwide, BLOCK emphasizes continuous staff development, with about 30% trained internally. Initiatives supporting work-life balance include an in-house daycare center. Apprenticeships and educational programs range from internships to doctoral studies, ensuring a skilled and motivated workforce.

Corporate Social Responsibility and Regional Engagement

BLOCK actively supports social and cultural projects in the Verden region, including food banks and cultural events, encouraging employee participation in community activities.

Marketing and Industry Presence

The company maintains a strong presence at major trade fairs, notably Hannover Messe since 1976, leveraging these events for international market expansion while valuing direct customer engagement alongside digital channels.

Notable Personnel and Career Development

  • Dr. Dennis Kampen: Progressed from trainee to head of Advanced Research and management board member.
  • Lothar Ketelhohn: Over 45 years of service with expertise in quality control.
  • Tobias Kirschke: Advanced from dual studies to General Manager Human Resources, emphasizing lifelong learning.

Historical Milestones

  • 1939: Company founded by Alfred Block.
  • 1971: Wolfgang Reichelt assumes ownership.
  • 1976: First participation at Hannover Messe trade fair.
  • 1987: Relocation to expanded production site on Max-Planck-Straße.
  • 2000: Establishment of BLOCK USA production unit.
  • 2012: Expansion into China with sales and production facilities.

Company Timeline and Milestones (1994-2019)

  • 1994-1997: Opening of accredited EMC laboratory and R&D center; expansion of production; foundation of Kunshan production site.
  • 1999: Introduction of ultracapacitor-based UPS; EasyB nominated for Hermes Award.
  • Early 2000s: Launch of Future Winding Technology; integration of EasyB with industrial communication standards; introduction of modular EasyB circuit breakers.
  • 2005-2007: Relocation of BLOCK USA; establishment of Franklin Park production site; development of taid 1.0 calculation tool; foundation of BLOCK Electronics Trading (Shanghai).
  • 2009-2010: Launch of 8-channel electronic circuit breaker line; UL certification of testing laboratory.
  • 2012-2016: 70th anniversary; development of magnetic measurement tool; foundation of BLOCK France SARL; launch of uninterruptible power supplies and high-end power supply PVSL.
  • 2017-2019: Continued expansion with new subsidiaries in USA, Belgium, Denmark; investments in Asia.

Key Innovations and Certifications

  • Future Winding Technology enhancing transformer design.
  • EasyB modular and multi-channel electronic circuit breakers.
  • Taid calculation tool for inductive components.
  • UL certification of testing laboratory.
  • Ultracapacitor-based UPS and high-end power supplies.
  • Magnetic measurement tools for soft magnetic parameters.

Strategic Expansion

BLOCK has expanded globally with production and trading sites in China, USA, France, Belgium, Denmark, and investments across Asia, supporting international growth and market presence.

Summary

BLOCK Transformatoren-Elektronik GmbH is a medium-sized, innovative leader in power electronics and transformer technology. Its strengths include comprehensive in-house production, strong R&D, customer-specific solutions, and a dedicated workforce. The company balances tradition with forward-looking technologies, maintaining commitments to quality, sustainability, and social responsibility while expanding its global footprint.

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Catalog excerpts

ALL ABOUT BLOCK-2

THIN KIN GA HEAD 80 Years of Electric Advancement Almost a century of new solutions, global connections, and innovative technologies. All of this keeps us moving, and drives us forward. Thinking ahead, developing ahead, acting ahead and all that out of conviction – for ideas of the future and the perfect power. We can be proud of what we have achieved and look to the future with confidence. After all, we will shape it with you. With ideas that save Lars Ullenboom Lars Ullenboom Managing DirectorDirector Finance, Managing Finance, Controlling Controlling Jens Scheffelmeier Jens Scheffelmeier resources,...

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ALL ABOUT BLOCK-3

MOT 0RBL OCK The Joy of Discovery From entrepreneur to enterprise Founded in 1939, the company’s history is closely linked with its owner and CEO, Wolfgang Reichelt, who acquired the Alfred Block company in 1971. Reichelt had started here at Block a good 15 years before, and after a few other positions he returned to where it all began. His entire life has been dedicated to the art of engineering and a fascination for electronics. In a sense, the building blocks for this were found outside on the streets: “You could find all sorts of things in the woods after the war”, says Wolfgang Reichelt....

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ALL ABOUT BLOCK-4

BL OCKHO USE Built for the Future BLOCK is continually expanding and changing its premises to suit its needs. Just two years after acquiring the company, Wolfgang Reichelt built a new unit next to the railway, which is still used for BLOCK production purposes today. It has always been important to the CEO that all production phases take place in-house so that the company is not dependent on third parties. However, by 1987 the company had outgrown these premises too and relocation to the industrial area on MaxPlanck-Straße was inevitable. With an eye on the future, this location offered plenty...

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ALL ABOUT BLOCK-5

WESTB LOCK “The investment in Kunshan is a strategic maneuver for BLOCK. Local customers can now be supplied more flexibly and quickly with high-quality products designed in Germany and ‘Made in China’.” Udo L. Thiel, Managing Director Welcome to America Since 2000, BLOCK has also been supplying optimum power in the US. With its own 2,500 m² (27,000 ft²) production unit in Franklin Park, Chicago, BLOCK USA, Inc. now sells transformers, power supplies, electronic circuit breakers, reacors and EMI filters ‘Made in USA‘ in the Midwest. There it also has a company warehouse. German engineering with...

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ALL ABOUT BLOCK-6

product is a PCB transformer and is already more than 100 years old. It is shown here in approx. 1:1 scale. BLOCK has 4,000 customers from 60 countries BLOCK supplies over 50 industries 80,000 products developed over 80 years biggest product is called the TT3C1000-40400, weighs over 2.7 tons and has a rated power of 1 MVA. It is so big that we can only show the connection terminal here in 1:1 scale.

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ALL ABOUT BLOCK-7

More than apprentices have successfully completed their apprenticeships with BLOCK Links to the region Company owner Wolfgang Reichelt is also involved in various social and cultural projects in the Verden area. The business owner gets involved wherever he can, whether this is to support the local Tafel foodbank, fund the sound system in Verden Cathedral, or as chairman of Verden’s Economic Roundtable: “I want to give something back because I feel closely connected to the region.” The BLOCK Kinderhaus With the in-house day care center, BLOCK has been actively Into the future with BLOCK promoting...

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ALL ABOUT BLOCK-8

Sascha Langfermann, Advanced Research BLOCK Development Center A medium-sized enterprise with powerful research capabilities Innovative research projects are regularly being launched through partnerships with science and industry. BLOCK is constantly working toward technical and scientific progress, whether through collaborative robots, wide-bandgap semiconductors, 3D printing, or new product ideas. More than 60 engineers and technicians are currently working on development at the company, with ten of these working on advanced research. Engineers at BLOCK are continuously producing innovative...

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ALL ABOUT BLOCK-9

Department managers Christian Kliesch and Sandro Perthel oversee the development of new medium-frequency and high-frequency products in BLOCK C3. CoCreationCenter The new innovative development department Going back decades, the in-house Development Center has been the main focus. BLOCK carries out advanced research here in close contact with universities and also trains its own postgraduate students. It is one of the fundamental bases for the company’s success and represents a crucial safeguard in ensuring its future viability. The company has developed the innovative “BLOCK C3” CoCreationCenter...

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ALL ABOUT BLOCK-10

BLOCK Products on the Path to Success Be it a transformer, circuit breaker, switched mode power supply, reactor or EMI filter, no requirement is too much and no technology too complicated. Together BLOCK develops and manufactures the best possible products to supply customers with the perfect power. Over the years, BLOCK has developed some real BLOCKbusters for which the customers line up at the door. Powerful Future Winding technology Excellent design BLOCK‘s switched mode power Extraordinary transformerreactor solution The Future Winding technology supplies are not only powerful, designed by...

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ALL ABOUT BLOCK-11

Success needs Know-how There is know-how aplenty in the modern production halls. Work steps are only automated where it makes sense to do so. No matter what the order is: one-off items, customer-specific products or serial production items, it is not only the machines and tools that need to be flexible. It is only with well-trained staff that one can produce reliable products and keep customers happy. The aim to be no. 1 increases all staff’s identification with the company. BLOCK will continue to work on achieving this each and every day. Alica Bogner, Purchas

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ALL ABOUT BLOCK-12

ADVERTIS INGB LOCK There from the start BLOCK exhibited at a trade fair for the first time in 1976. The Hannover Messe is one of the most important industry trade fairs in the world and it takes place in Germany. Wolfgang Reichelt has been on the advisory board shaping the future since 1996. The global popularity of German trade fairs is used to win new markets and customers. Marlis and Wolfgang Reichelt talking to future German Chancellor Gerhard Schröder In addition to its online presence, BLOCK also knows the importance of direct contact with customers.

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All BLOCK Electronics (Kunshan) Co., Ltd catalogs and technical brochures

  1. BLOCK COMPACT

    80  Pages

  2. RTE 30/2x24

    2  Pages

  3. RTE 20/2x24

    2  Pages

  4. RKD 30/2x24

    2  Pages

  5. RKD 20/2x24

    2  Pages

  6. the big BLOCK

    719  Pages

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.