Bosch MSK030B-0900-NN, Project Planning Manual

Page: 209 / 282

9.2 Degree of protection
The protection type according to EN 60034-5 is determined by the abbrevia‐
tion IP (International Protection) and two code numbers for the degree of pro‐
tection. The first code number describes the degree of protection against
contact with and ingress of foreign bodies, the second code number de‐
scribes the degree of protection against ingress of water.
first code number Degree of protection
6
Protection against penetration of dust (dust-proof); complete contact
protection
4
Protection against ingress of solid foreign bodies with a diameter of
more than 1 mm
2
Protection against ingress of solid foreign bodies with a diameter of
more than 12.5 mm
second code number Degree of protection
7
Protection against harmful effects when temporarily immersed in wa‐
ter.
5
Protection against a jet of water from a nozzle which is directed
against the housing from all directions (jet water)
4
Protection against water splashing against the housing from all direc‐
tions (splash water)
Tab. 9-5: IP protection types
Motor area
Degree of protec‐
tion
Note
Motor housing, output shaft, motor connector
when properly assembled in mated condition
IP 65 Standard version
Motor housing, output shaft, motor connector
when properly assembled in mated condition
and use of sealing air
approx. IP67
Only with sealing air ac‐
cessories!
Blower motor and connector in mated condi‐
tion
IP 65 Blower unit accessories
Fan grille IP 24 Blower unit accessories
① Output shaft with shaft sealing ring
② Connector for performance and encoder connection (optionally
retrofittable for sealing air connection)
③ Blower motor with connector
④ Fan grille
Tab. 9-6: IP protection type ranges for MSK motors
The tests for the second code number are carried out with fresh water. If
cleaning processes with high pressure and/or solvents, cooling lubricants or
creep oils are used, a higher degree of protection may be required.
DOK-MOTOR*-MSK********-PR12-EN-P Bosch Rexroth AG 207/279
Synchronous Servomotors MSK
Operating conditions and application notes