Technical data

Technical data

6.1 General technical data

RS 485 Repeater

Manual, 02/2011, A5E03382072-01

6.1.5 Specification of dielectric tests, protection class, degree of protection, and rated

voltage of S7-300

Test voltage

Proof of dielectric strength must be provided in the type test at a test voltage to IEC 61131-2:

Circuits with rated voltage V

to other circuits

or ground.

Test voltage

< 50 V 500 VDC

< 150 V 2500 VDC

< 250 V 4000 VDC

Protection class

Protection class I to IEC 60536, i.e., a protective conductor must be connected to the

mounting rail!

Protection against the ingress of foreign matter and water

● Degree of protection IP 20 according to IEC 60529, i.e., protection against contact with

standard probes.

No protection against the ingress of water.