Data Sheet

Relative humidity
● With condensation, tested in accordance with
IEC 60068-2-38, max.
100%; RH incl. condensation / frost (no commissioning in
bedewed state), horizontal installation
Resistance
Coolants and lubricants
— Resistant to commercially available
coolants and lubricants
Yes; Incl. diesel and oil droplets in the air
Use in stationary industrial systems
— to biologically active substances according
to EN 60721-3-3
Yes; Class 3B2 mold, fungus and dry rot spores (with the
exception of fauna); Class 3B3 on request
— to chemically active substances according
to EN 60721-3-3
Yes; Class 3C4 (RH < 75 %) incl. salt spray acc. to EN 60068-2-
52 (severity degree 3); *
— to mechanically active substances
according to EN 60721-3-3
Yes; Class 3S4 incl. sand, dust, *
Use on ships/at sea
— to biologically active substances according
to EN 60721-3-6
Yes; Class 6B2 mold and fungal spores (excluding fauna); Class
6B3 on request
— to chemically active substances according
to EN 60721-3-6
Yes; Class 6C3 (RH < 75 %) incl. salt spray acc. to EN 60068-2-
52 (severity degree 3); *
— to mechanically active substances
according to EN 60721-3-6
Yes; Class 6S3 incl. sand, dust; *
Usage in industrial process technology
— Against chemically active substances acc.
to EN 60654-4
Yes; Class 3 (excluding trichlorethylene)
— Environmental conditions for process,
measuring and control systems acc. to
ANSI/ISA-71.04
Yes; Level GX group A/B (excluding trichlorethylene; harmful gas
concentrations up to the limits of EN 60721-3-3 class 3C4
permissible); level LC3 (salt spray) and level LB3 (oil)
Remark
— Note regarding classification of
environmental conditions acc. to EN 60721,
EN 60654-4 and ANSI/ISA-71.04
* The supplied plug covers must remain in place over the unused
interfaces during operation!
Conformal coating
● Coatings for printed circuit board assemblies
acc. to EN 61086
Yes; Class 2 for high availability
● Protection against fouling acc. to EN 60664-3
Yes; Type 1 protection
● Military testing according to MIL-I-46058C,
Amendment 7
Yes; Discoloration of coating possible during service life
● Qualification and Performance of Electrical
Insulating Compound for Printed Board
Assemblies according to IPC-CC-830A
Yes; Conformal coating, Class A
last modified:
09/15/2019
6AG1521-7EH00-7AB0 Subject to change without notice
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09/16/2019 © Copyright Siemens