Control transformers from THS-Transformatoren Franz Hölsch GmbH are specifically designed for stable and safe voltage adaptation in control circuits. They ensure reliable isolation and supply of sensitive control systems, enabling machines and equipment to operate consistently even under fluctuating load conditions. Especially in industrial environments, precisely defined output voltages and robust construction are essential – requirements that THS consistently meets with well-engineered transformer solutions.
The control transformer series cover a wide range of applications and are designed in accordance with relevant standards such as DIN VDE 0550 and DIN EN 61558. Protection classes up to IP54, solid connection solutions and installation-friendly designs allow flexible integration into control cabinets and system concepts. THS-Transformatoren Franz Hölsch GmbH does not develop generic products, but application-oriented components that must perform reliably in daily operation. This is where the strength becomes evident: control transformers that not only meet technical specifications, but deliver long-term performance in real-world use.
Single-phase control transformers
HST, HSTU, HST-K series
According to DIN VDE 0550 Part 3
Single-phase isolating transformers or Single-phase safety transformers
According to DIN EN 61558 / DIN VDE 0570, protection class IP00 – IP54
Terminals with screw connections, mounting bracket, alternatively for standard rail mounting
Data sheets for download
Single-phase control transformers HST
Single-phase control transformers
Single-phase multi-voltage transformers HSTU
Fuse values HST-NGN
Fuse values HST motor protection switch