Warning:
Prior to demounting, make sure that the unit is disconnected from the power supply.
Demounting of the unit is done with opposite procedure, i.e. hold the unit with both hands and push it down, against the spring resistance (in the direction of arrow 1 in the figure below). Then pull the bottom edge of the unit towards you (in the direction of the arrow 2 in the picture below).
Demounting from DIN rail
Attention:
Avoid pressure on the terminals as they could be mechanically damaged.