Catalogs and brochures


The compact and clearly structured catalog with the BLOCK DIREKT range. Over 1,200 products from the divisions of transformers, power supplies, reactors, and EMI filters can be delivered within 24 hours.

BLOCK Power supplies

Switched mode power supplies, electronic circuit breakers, uninterruptible power supplies, redundancy modules, and accessories for the reliable supply of your systems.

TOGA - Unbox your ideas

TOGA demonstrates flexibility in use as a plastic housing. Components for voltage adjustment, remote control, communication, measurement or analysis systems find space in the flexible housing.

Future Winding for next power generation

Future Winding edgewise winding technology, designed by BLOCK itself, enables a new dimension of power optimization of inductive winding products.

All-pole sine filters SF4

Not only does the new SF4 all-pole sine filter series solve a host of such EMI problems, it also increases the efficiency of drive systems controlled by frequency converters.

EasyB circuit breaker system

EasyB – The modular, 24 V circuit breaker system for the reliable fusing of the 24 V control voltage level. Can be extended flexibly and for communication.

Inductances for the medium and high-frequency range

Compact and robust passive components for the power electronics of the next generation. Medium-frequency transformers, encapsulated PCB transformers, power converters, ferrite storage reactors, and current-compensated reactors. BLOCK inductors for PCBs are available for SiC/GaN.


BG, BGE, and BGUK steel plate enclosure series do not just offer protection against environmental influences. The optimal cooling of the internal components and the flexible adjustment are also in focus.

Control power transformers CT

The CT series of control power transformers from BLOCK as an economic solution for general and industrial applications. Robust and flexibly enhanceable with a TS35 rail or US fuse holder.

Isolating transformers TT3 Neo

For the reliable protection of the system, the use of isolating transformers with galvanic isolation between the windings is ideal. TT3 Neo isolating transformers provide secure isolation at high power ranges from 10 kVA to 1 MVA.

Magnet wires • Litz wires • Sleevings

Copper wires, copper litz wires, resistance wires, sleevings in various designs. Suitable for the manufacture of coils and windings.

Detuned reactors DR3

Choking with the DR3 detuned reactors from BLOCK broadly rules out the risk of overcurrent through resonance, thus ensuring optimal protection of the compensation capacitors, and an improvement in voltage quality.

Inductive components for railway technology

Robustly tested technologies are demanded in railway technology. BLOCK's custom-made railway products are characterized by exceptional properties for use in railway technology. Reactors. filters and medium-frequency transformers tested in line with EN 60310 and EN 45545 HL3 and developed according to the latest industrial standards.

PLED - LED drivers

PLED drivers are the first choice for the simple switching or dimming of LED lights. Above-average robustness against transient overvoltages, they are especially reliable and durable.

Inductors for power electronics

A selection of inductive components for power electronics. Main transformers, current-compensating reactors, DC reactors, and drive transformers benefit from BLOCK's comprehensive development and production competence.

FAIL-SAFE transformers

The certified FAIL-SAFE transformer for input voltages of 230 V and 400 V. The primary design of the BLOCK FAIL-SAFE transformers guarantees permanently safe current interruption in the event of short circuits and overloads.

Efficient solutions for your applications

In our research and development center, new, innovative products are being developed for our customers day after day. Here you can get an insight into efficient solutions for your applications.