Yudian AI-518 - Page 20

16
Load
Thyristor trigger output
100~380VAC
IN4001
1N4001
Load
Thyristor trigger output
SCR X2
5~500A
BX
BX
Capacitor Resistor
Absorber Circuit
Varistor
G1
G2
G1
G2
ZNR
ZNR
V
V
100~380VAC
TRIAC
5~500A
Capacitor Resistor
Absorber Circuit
Varistor
SCR Pow er Module
Note 1: According to the voltage and current of load, choose suitable varistor to prevent the thyristor. Capacitor
resistor absorber is needed for inductance load or phase-shift trigger output.
Note 2: SCR power module is recommended. A power module includes two SCRs, is similar to the above dashed
square.
Note 3: K5 (Phase-shift trigger module) only support 220～380VAC and 50Hz power.