Degree Of Protection - REXROTH EcoDrive Cs Project Planning Manual

8-26
Motors

Degree of protection

The type of protection is defined by the identification symbol IP
(International Protection) and two characteristic numerals specifying the
degree of protection.
The first characteristic numeral defines the degree of protection against
contact and penetration of foreign particles. The second characteristic
numeral defines the degree of protection against water.
First Degree of protection
characteristic
numeral
6 Protection against penetration of dust (dust-proof);
complete shock protection
Second Degree of protection
characteristic
numeral
7 Protection against harmful effects if temporarily immersed
in water
5 Protection against a water jet from a nozzle directed
against the housing from all directions (jet water)
Fig. 8-35: IP degrees of protection
Tests regarding the second characteristic numeral must be performed
using fresh water. If cleaning is effected using high pressure and/or
solvents, coolants, or penetrating oils, it might be necessary to select a
higher degree of protection.
The design of the MSM motors complies with the following degrees of
protection according to DIN VDE 0470, Part 1, ed. 11/1992 (EN 60 529):
Motor ranges
Motor housing, power and feedback
connectors (if mounted properly
only)
motor shaft
Fig. 8-36: Ranges of IP degrees of protection for the motors
Rexroth EcoDrive Cs Drives
Degree of Remark
protection
IP 65 Standard design
IP40 Standard design
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