OPERATION AND MAINTENANCE MANUAL
MAC-HS MOTORS
PAGE: 16
CODE: CTT32 EDITION: 04 RELEASE: SEPTEMBER 2020
Subject to technical changes without prior notice
3.3.3
Degree of protection IP
The degree of protection of electrical machines is defined in accordance with IEC/EN 60034-5. Said standard specifies the
degree of protection of each machine using an ‘IP’ code, which comprises two digits:
- First digit: Indicates the degree of protection for contact and solid bodies.
- Second digit: Indicates the degree of protection for water.
The table below shows the meaning of each digit:
First digit
Protection offered
Second
digit
Protection offered
0
No special protection against contacts. No
protection against the penetration of solid foreign
bodies.
0
No special protection against water.
1
Protection against casual contacts of large surfaces,
e.g. a hand. Protection against the penetration of
solid foreign bodies with a diameter of more than 50
mm.
1
Protection against drops of water that fall vertically.
2
Protection against contact with fingers. Protection
against the penetration of solid foreign bodies with a
diameter of more than 12mm.
2
Protection against drops of water falling at an angle of
up to 15º from the vertical axis.
3
Protection against contacts with tools, wires, etc.
with a diameter of more than 2.5 mm. Protection
against the penetration of solid foreign bodies with a
diameter of more than 2.5mm.
3
Protection against water sprayed at an angle of more
than 60° from the vertical axis.
4
Protection against contacts with tools, wires, etc.
with a diameter of more than mm. Protection against
the penetration of solid foreign bodies with a
diameter of more than 1mm.
4
Protection against water sprayed in any direction
5
Full protection against contacts. Protection against
damaging dust deposits.
5
Protection against jets of water in any direction.
6
Full protection against contacts. Full protection
against the penetration of dust.
6
Protection against the beating of the sea.
7
Protection against temporary immersion under a
specified pressure and for a specified time.
8
Protection against prolonged immersion.
Table 6: IP code
For example, a machine defined as IP54 indicates complete protection against contact and water spraying from any direction.
Summary of Contents for MAC-HS 100
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