ABB Relion 620 Series Installation Manuals page 16

Section 2
Environmental aspects
8
Table 2: Materials of the protection relay parts
Protection relay
Case
Plug-in unit
Package
Attached material
1) Polycarbonate
2) Liquid crystal polymer
3) Polybutylene terephthalate
4) Polyamide
Parts
Metallic plates, parts and screws
Plastic parts
Electronics plug in module
Electronics plug in modules
Electronics LHMI module
Plastic parts
Metallic parts
Box
Manuals
1MRS757641 E
Material
Steel
1) 2)
PC , LCP
Various
Various
Various
3) 4)
PC, PBT , LCP, PA
Aluminium
Cardboard
Paper
620 series
Installation Manual