Operation Ambient Temperature (℃) -25 to 70 (no icing) Storage Temperature (℃) -40 to 80 (no icing) Mounting Hole Diameter (Φmm) 30 Ambient Humidity to Use 45% to 85% (with no condensation) Protection Class IP65 Button Shape Mushroom (large) Type Non-illuminated type Type of Operation Push lock / turn reset Terminal Shape Screw terminal