As this transformer type is custom-designed, it can be installed in the supply systems of electrical consumers of all kinds. The windings, which are separated by double or extra-strong insulation, ensure reliable function with products with safety extra-low voltage which must also comply with the requirements of system decoupling to EN 61558-2-6. All ex-stock control transformers with 24 V AC output voltage are designed as safety isolating transformers.

 
ESI single-phase safety isolating transformer

Primary max. 660 V, secondary max. 50 V
output 50 VA to 2500 VA
 ESI_pages_32-33.pdf

USI single-phase safety isolating transformer

Primary max. 750 V, secondary max. 50 V
output 1 kVA to 10 kVA
 USI_pages_34-35.pdf