Ventilation speed controller TRANSFORMER-BASED

Speed adjustment via built-in 5-stage transformer. Individual or parallel control of 3~ motors or fans. Properties & special features: Ideally suited for combination with ZIEHL-ABEGG external rotor motors or fans. Easy-to-use, rugged system. Control without electro-magnetic running noises. Version: Output range: 1~ transformers, 1.5 to 14 amps 3~ transformers, 2 to 14 amps Scope of functions: Easy-to-use speed controller with integrated 5-stage switch for rotational speed specification Devices with two 5-step switches, two speeds can be externally switched. Easy-to-use speed controller, with rotational speed specification via an external 0 – 10 V signal. Extended versions, with additional inputs and outputs