Motor Types and Specifications
All three models, FE1031, FE230/T, and FE1018, are single-phase motors. They differ in power supply requirements: FE1031 and FE1018 operate on 220-240Vac at 50/60Hz, while FE230/T operates on 85-265Vac at 50Hz.

Technology and Load Capacity
FE1031 and FE230/T use phase-cut technology, whereas FE1018 uses inverter technology. The maximum motor load is 4.5 A for FE1031 and FE230/T, and 3.5 A for FE1018.

Control and Dimensions
FE1031 and FE1018 are controlled via bipolar switches and rotary knobs, while FE230/T uses a digital keyboard with 5 keys. The dimensions vary, with FE1031 being the smallest and FE1018 the largest.

Protection and Adjustments
IP protection ratings are IP55 for FE1031, IP56 for FE230/T, and IP20 for FE1018. Trimmers for speed adjustment are available in FE1031 and FE230/T but not in FE1018. Protection fuses are included in all models, with different specifications.

Additional Features
FE230/T and FE1018 include a microprocessor control system, while FE230/T also supports temperature sensors. These controllers are designed for smoke extraction and hot air distribution in fireplaces and stoves.