Schaefer Germany offers Industrial and Military Grade Single Phase Output AC-AC Static Frequency Converters with Single Phase 115VAC or 230VAC  or 3Phase Input 400VAC / 480VAC or 3Phase 115VAC Input and Single Phase Output 115VAC or 230VAC. Available in Eurocassette, Wall Mount and 19″ rack mount mechanical with natural convection cooled or built-in fans.

1. 40 – 400 Hz adjustable / programmable
2. 45 – 65 Hz adjustable / programmable
3. any fixed frequency between 40 – 400 Hz
4. 400 Hz
   1. synchronized with 400 Hz mains
5. 50 Hz
   1. synchronized with 50 Hz mains
6. 60 Hz
   1. synchronized with 60 Hz mains
7. 50/60 Hz switchable
8. 800 Hz