• No : 23273
  • Release Date : 2018/09/12 15:11
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About Low-voltage Power Distribution Products

What is the difference between orange and gray control knobs foradjusting currents of a thermal load relay?
Category : 


These two different colors of the knob identify 2-element type and 3-element type of a thermal load relay. Gray: TH-* (Heater 2-element type)Orange: TH-*KP type (Heater 3-element type)
Product Name
Motor Starters