Specifications For Dielectric Tests, Protection Class, Degree Of Protection, And Rated Voltage - Siemens SIMATIC Operating Instructions Manual

General Technical Specifications

6.5 Specifications for Dielectric Tests, Protection Class, Degree of Protection, and Rated Voltage

6.5 Specifications for Dielectric Tests, Protection Class, Degree of
Protection, and Rated Voltage
Test Voltage
Dielectric strength is proven during the type test with the following test voltage in accordance
with IEC 61131-2:
Circuits with rated voltage U
or to ground
Pollution Degree/Overvoltage Category in Accordance With IEC 61131
● Pollution degree 2
● Overvoltage category
Degree of Protection IP65
Degree of protection in accordance with IEC 529
● Protection against the ingress of dust and full protection against physical contact
● Water projected by a nozzle against the enclosure from any direction shall have no
Degrees of Protection IP66 and IP67
Degree of protection in accordance with IEC 529
● Protection against the ingress of dust and full protection against physical contact
● IP66: Water from heavy seas or water projected in powerful jets shall not enter the
● IP67: Protection against water when enclosure is immersed at specified pressures over a
Rated Voltage for Operation
The ET 200pro distributed I/O device operates at the following rated voltage and
corresponding tolerance.
Rated voltage
24 V DC
48
≤ 50V
≤ 150V
≤ 250V
– At U = 24 V DC: II
r
harmful effect.
enclosure in harmful quantities.
specified time period (water must not enter the enclosure in any harmful amount)
to other circuits Test voltage
e
500 V DC
2,500 V DC
4,000 V DC
Tolerance range
20.4 V DC to 28.8 V DC
ET 200pro Distributed I/O System - Fail-Safe Modules
Operating Instructions, 05/2007, A5E00394073-02