| Grades of protection
against contact or penetration of solid foreign matter. |
| Number |
Protection |
Explanation |
|
0 |
No Protection |
People are not pretected against
accidental contact with charged or moving parts.
Machines are not pretected against penetration of solid foreign
matter. |
|
1 |
Protection against penetration by
large solid matter |
Protects large surfaces from accidental
contact with chared or moving parts inside the machine, such
as contact with hands but does not protect against voluntary
contact with these parts. Protects machine against penetration
by solid matter with diameter >50mm |
|
2 |
Protection against penetration by
medium sized solid matters |
Protects fingers form accidental
contact with charged or moving parts in side the machine. Protects
against penetration by solid matter with diameter >12mm |
|
3 |
Protection against penetration by
small solid matter |
Protects tools, conductors, and similar
objects with a thickness >2.5mm from contact from charged
or moving parts inside the machine. Protects against penetration
by solid matters with a diameter >2.5mm |
|
4 |
Protection against penetration by
very small soild matter |
Protects tools, conductors and similar
objects with a thickness >1mm from contact or moving parts
inside the machine. Prevents solid bodies with a diameter >1mm
such as small tools and wires from entering the machine. |
|
5 |
Protection against dust deposits |
Completely protects from contact
with charged or moving parts inside the machine. Portects against
dust deposits. The quantity of dust allowed to enter the machine
is reduced to ensure the machine functions properly. |
|
6 |
Protection against penetration of
dust particles |
Completely protects from contact
with charged or moving parts inside the machine. Totally prevents
dust form entering machine. |
| Grades of protection
against water penetration. |
| Number |
Protection |
Explanation |
|
0 |
No protection |
No particular protection |
|
1 |
Protection against water drops moving
in a perpendicular direction |
Water drops which fall perpendicularly
must not damage the machine. |
|
2 |
Protection against water drops moving
in an oblique direction |
Water drops which fall at any angle
up 15% from the vertical must not damage the machine. |
|
3 |
Protection against dripping water |
Water which falls at any angle up
60% from the vertical must not damage the machine. |
|
4 |
Protection against spraying water |
Water sprayed from any direction
against the machine must not cause damage. |
|
5 |
Protection against jets of water |
Jets of water launched from any direction
against the machine must not cause damage. |
|
6 |
Protection against flooding |
Water which penetrates the machine
because of temporary flooding, such as rough sea, must not damage
the machine. |
|
7 |
Protection against immersion |
When the machine is immersed for
a predetermined time, water must not enter in such quantities
as to cause damage. |
|
8 |
Protection against submersion |
When the machine is submerged at
a predetermined pressure for an undertermined period of time,
water must not enter the machine in such quantities as to cause
damage. |
MCS Systems 
