The A3RW are autotransformer controllers used for five-stage speed control of three-phase fan motors. They were designed with professional ventilation and heating installations in mind.

The advantages of the A3RW are:

• Application flexibility: max. output current 1.5A, 2A, 4A, 5A, 7A, 10A, 14A
• High level of safety: equipped with a fuse, anti-freezing, and thermal protection
• Durable design: for harsh working conditions (protection level IP21)
• Ergonomic operation
• Reliability