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5.5 Circuit diagram direct start Y
QA1
Main switch
Q2
Fault protection switch (release current 30 mA)
FC1.1
Motor safety switch
FC2.1
Control fuse
SF1
Control voltage O/I
QA2
Performance contactor (only star connection allowed!)
EC1
Compressor motor
BT1
Cold conductor (PTC-sonsor) motor winding
BT2
Thermal protection thermostat
BT3¹
Pump down- pressostat/ thermostat or external enabling switch
BP1/BP2¹ High/low pressure monitoring in accordance with the relevant national regulations
UC1
Terminal box compressor
KF4²
Electronic trigger unit INT69 EX2
A3
AC-double barrier (compression temperature)
X KK
Terminal strip in terminal box compressor
X SS
Terminal strip in external switch cabinet
Optional
FC2.2
Fuse control LR / oil sump heater
EB1
Oil sump heater
LR²
Capacity regulator (ATEX design)
¹) Operate these components with the appropriate type of protection only
²) Regard deviating connection voltage!
When using 24 V DC the installation of a safety isolating transformer is mandatory.
Legend
WARNING
With the installation of control and adjust parts the valid regulati-
ons for the explosion protection have to be observed!
=
Installation outside of the explosion endangered area!
INFO
Содержание pluscom Bock EX-HG12P
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