Table 2: Materials of the protection relay parts
Protection relay Parts Material
Case Metallic plates, parts and
screws
Steel
Plastic parts PC , LCP
Electronics plug in module Various
Plug-in unit Electronics plug in modules Various
Electronics LHMI module Various
Plastic parts PC, PBT, LCP, PA
Metallic parts Aluminium
Package Box Cardboard
Attached material Manuals Paper
1
Polycarbonate
2
Liquid crystal polymer
3
Polybutylene terephthalate
4
Polyamide
1MRS757641 G Environmental aspects
620 series
Installation Manual
15