TPS31 Three Power Supply Module is composed of microprocessor as the core, providing three selective AC power output, which can precisely detect 3-way voltage and make accurate judgment and control output for voltage abnormal situations (over voltage, under voltage). 
 
PERFORMANCE AND CHARACTERISTICS
System type is 3-way single phase AC power;
Intelligent and precise MCU monitoring and control; 
Two working mode: mutual backup and power supply by priority;
Measure 3-way input voltage and load voltage;
Over/under voltage detection function, over/under voltage threshold can be set (via PC software);
Transfer time<60ms;
LED can intuitively indicate 3-way input voltage status and output voltage status;
Can be used for 3-way or 2-way power input;
3-way independent switch power supply is adopted internally;
3-way N wire isolated design;
Guide rail installation and screw installation;
Modular structure design, pluggable terminal, compact structure and easy mounting.