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Block Transformatoren develops transformers and power supply components for control and automation technology: control transformers for galvanically isolated power supply to control circuits, primary switch regulators for efficient voltage conversion, and switch mode power supplies for stable power to electronic equipment.


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Block Steuertransformator ST 250/23/23
Block Steuertransformator ST 250/23/23
Art.-Nr.: ST 250/23/23

€78.40 net €65.88

Immediately available, shipping in 1-2 business days

Block Steuertransformator ST 400/4/23
Block Steuertransformator ST 400/4/23
Art.-Nr.: ST 400/4/23

€103.64 net €87.09

Immediately available, shipping in 1-2 business days

Block Primärschaltregler PVSE 400/24-10
Block Primärschaltregler PVSE 400/24-10
Art.-Nr.: PVSE 400/24-10

€304.83 net €256.16

Immediately available, shipping in 1-2 business days

Block Schaltnetzteil PC-0324-100-2
Block Schaltnetzteil PC-0324-100-2
Art.-Nr.: PC-0324-100-2

€188.92 net €158.76

Shipping in 14 day(s)

Block Primärschaltregler PVSE 230/24-20
Block Primärschaltregler PVSE 230/24-20
Art.-Nr.: PVSE 230/24-20

€505.18 net €424.52

Immediately available, shipping in 1-2 business days

Block Steuertransformator ST 160/4/23
Block Steuertransformator ST 160/4/23
Art.-Nr.: ST 160/4/23

€73.71 net €61.94

Immediately available, shipping in 1-2 business days

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KATHRIN BRANDT
Employee Purchasing from Troisdorf

Great advice and friendly service. I was helped immediately and competently with any questions. Gladly again.

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OMAR NASER
Office Manager from Frankfurt a.M.

Goods are well packaged and arrive safely, which is important to me. My mail was answered immediately. 

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RAINER SEIDEL
Master carpenter from Wiesbaden

Had to replace a lamp, but the same was no longer available. Great advice, found a suitable replacement and delivered it quickly.


Block Transformers for Control and System Technology

Block Transformatoren-Elektronik GmbH from Verden is an established German manufacturer of transformers and power supplies. The range at WATT24 covers typical requirements in control cabinets and automation systems: control transformers for safe galvanic isolation of the control circuit from the mains, switch mode power supplies for compact, efficient voltage conversion, and primary switch regulators for demanding conversion tasks.

Installer's tip: When sizing a control transformer, factor in the inrush currents of connected loads, not just their steady-state rated current. Contactors and solenoid valves briefly draw significantly more current at switch-on than when held. An undersized transformer leads to voltage dips when multiple loads switch simultaneously.

Block Products at WATT24

  • Control transformers – galvanically isolated power supply for control circuits
  • Switch mode power supplies – compact, efficient voltage conversion for electronic equipment
  • Primary switch regulators – for demanding voltage conversion tasks in control technology
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