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DSR Torque switch, closing, clockwise rotation
DOL Torque switch, opening, anti-clockwise rotation
WSR Limit switch, closing, clockwise rotation
Limit switch, opening, anti-clockwise rotation
WOL
Th Thermo switch
b1 Push button for stop
b2 Push button for close
b3 Push button for open
C1 Contactor-close
C2 Contactor-open
e4 Thermal overload relay
e5 Control fuse
h1 Indicator lamp-close
Indicator lamp-open
Indicator lamp-trouble
h2
h3
M Motor (3Phase AC) 415V, 3 , 50Hz
a1 Main switch
SH Space heater
b4 Selector switch
N Neutral
E Earth
R,S,T(L1,L2,L3) Phases
e1-e3 Main fuse
A Auto
m Manual
DSR1
DOL1
Torque switch in tandem operation
with DSR/DOL
WSR1
WOL1
Limit switch in tandem operation
with WSR/WOL
}
}
Terminal plan - Norm actuator
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