Speed controllers

 In particular for easy speed adjustment of fans and pumps DOLD developed a range of 1- and 3-phase speed controllers. Their function principle is based on the phase-angle control by thyristors. 

Speed controllers and phase controllers
FunctionPower [kW] controlled
phases
Diverse
signalling
outputs
Ext.
start
signal
Temperature
monitoring
housing Style:
Width [mm]
Type
1-phase AC- motors 230 V3 AC-Motoren 400 V
with analog control
4-20mA; 0-10V
0.31++Distribution board: 53IN 9017
Standard1.51+++for outdoor installation:
100; 122
SX 9240.01
Standard5.53+++for outdoor installation:
100; 122; 168
SX 9240.03