This is one of the semiconductor types. This part name is 3TF52.
This product has AC Contactors functions.
Manufacturers of product is Siemens.
Image and pinout :
3TF52 PDF Datasheet
Some of the text files within the PDF file
3TF AC Contactors Selection and ordering data AC operation 3TF30 3TF40 3TF31 3TF41 Auxiliary contacts NO NC NO – NC NO – NC NO – NC NO – NC Order No. 3TF30 00 – 0X 3TF30 10 – 0X 3TF30 01 – 0X Rated insulation voltage (V) Rated operational current (380V) AC – 3 AC – 4 690 9 3.3 -1-1 3TF40 10 – 0X 3TF40 01 – 0X 3TF40 11 – 0X 3TF40 22 – 0X 3TF40 20 – 0X 3TF40 31 – 0X 690 9 3.3 1-1 11 22 231 3TF31 00 – 0X 3TF31 10 – 0X 3TF31 01 – 0X 690 12 4.3 -1-1 3TF41 10 – 0X 3TF41 01 – 0X 3TF41 11 – 0X 3TF41 22 – 0X 3TF41 20 – 0X 3TF41 31 – 0X 690 12 4.3 1-1 11 22 231 Rated outputs of three-phase motors at 50Hz (KW) 230/220V 400/380V AC – 3 500 V 690/660V 1000 V AC – 4 400/380V 690/660V Mechanical endurance (x106) Electrical endurance (x106) Switching frequency (1/h) AC – 3 AC – 4 AC – 3 AC – 4 Coil voltage tolerance (AC) 2.4 4 5.5 5.5 — 1.48/1.4 2.54/2.4 15 1.2 0.2 1000 250 2.4 4 5.5 5.5 — 1.48/1.4 2.54/2.4 15 1.2 0.2 1000 250 (0.8~1.1)Us 3.3 5.5 7.5 7.5 — 2/1.9 3.4 [ … ]
Please refer to the file for details.