
40
Wiring Diagram
(Common for SI401/601)
Symbol
Part name
Symbol
Part name
ELB
Earth leakage breaker
CONT
Control board
TM
Terminal block
PIO
Display circuit board
H1,2
Heater
TH1
Sensor for control
X
Main relay
TH2
Sensor for overheating prevention
SSR
Breakerless relay
CT
Current transformer
TF
Transformer