SpeedTronic SP-506 10A/20A

The SpeedTronic SP-506 is a stand-alone fan speed regulator and light dimmer.

It comes in two models: one phase 10 Amps 50/60 Hz and one phase 20 Amps, 50/60Hz

The SpeedTronic SP-506 continuously measures load current. An alarm is activated in case the output drops during operation