This economical DIN rail or wall
mount single phase SCR unit is designed to control resistive loads, such as
heater bands and cartridge heaters, using the linear 4-20 mA proportional
output from a temperature controller. Using noise-free zero cross
firing, the robust 7PM
comes with a Fast Cycle control option for heavy thermal loads requiring less
frequent switching and a Single Cycle control option for lighter thermal loads
needing faster switching or more precise control.