What it is and where it fits
The Siemens 6ES7928-5BA20-4AA0 is an enclosure cover for TP2, TP3, and TPA 8-bit connection modules. It ships in a VPE of 4 units per package. This part is classified as Product class C — manufactured or produced to order, which means it is not a stocked shelf item. It is built to fulfill a specific order, so sourcing goes through a quote-to-order process rather than off-the-shelf picking.
Compliance and regulatory posture
RoHS compliant since 26 September 2014. The REACH Article 33 duty-to-inform applies: the part contains Lead (CAS-No. 7439-92-1) above 0.1% w/w, a candidate-list substance. Export control regulations are AL: N / ECCN: N — no special licensing required for standard industrial use. Packaging dimensions are 7.00 x 8.00 x 13.00 cm, and the quantity unit is 1 Package containing 4 units.