Unknown M012 Switch and Dimmer

Permissible operating voltages: 110/240 V/AC, 50 - 60 Hz Working temperature range: approx. 0ºC to +50ºC Max. Current capacity: 6 A (continuous power: 3 A). This corresponds to a maximum of 600 watts at 110 V/AC or continuous power 300 watts or at 240 V/AC maximum 1200 watts or continuous power 600 watts Duty cycle: 100% at 3 A or 20% (max. 3 minutes). At 6 A Control: via a permanently connected rotary potentiometer --- loads: for resistive or inductive loads