This part is a kind of semiconductor called DMB01.

Function of this product has Timers Multifunction.

Manufacturers : Carlo Gavazzi

Image and pinout :

Some of the text within the PDF file :

Timers Multifunction Types DMB01, PMB01 • Time range 0.1 s to 100 h • 7 knob selectable functions: Op delay on operate In interval Io interval on trigger open Id double interval Dr delay on release R symmetrical recycler ON first Rb symmetrical recycler OFF first • Knob selection of time range • Knob-adjustable time setting • Automatic or manual start • Repeatability: ≤ 0.2% • Output: 8 A SPDT or 8 A DPDT relay • For mounting on DIN-rail in accordance with DIN/EN 50 022 or Plug-in • 22.5 mm Euronorm or 36 mm Plug-in module housing • Combined AC and DC power supply • LED indication for relay status and power supply ON DMB 01 PMB 01 Product Description Multi-voltage timer with 7 knob selectable functions and 7 knob selectable time ranges within 0.1s and 100h. For m [ ... ]

DMB01 PDF Datasheet Download