User`s manual
viii
GP-477R/577R Series User's Manual
Preface
What is IP65f?
This unit's protection rating of IP65f is actually a composite code, consisting of
the internationally recognized British "Ingress Protection" standard (BS EN
60529:1992) - "IP65", and the standard developed by the Japanese Electronics
Manufacturer's Association (JEM) - "f". This code is used in this manual to
identify a given product's degree of structural resistance to a variety of environ-
mental elements and thus, prevent problems or accidents related to the inappropri-
ate use of a product.
The individual meaning of each character of this code is explained below. This
code indicates the degree of ingress protection provided from the front face of the
PL, and assumes that the PL is securely mounted into a metal panel.
IP 6 5 f
(1) (2) (3) (4)
(1) Designates the type of protection provided.
(2) Indicates the degree of protection provided to the human body by the unit, and
the degree of protection provided by the unit's front face from particles/dust
intrusion into the interior of the unit.
Here, "6" indicates that the unit is completely protected from dust intrusion.
(3) Indicates the degree of protection provided by the unit's front face from water
intrusion into the interior of the unit.
Here, "5" indicates that the unit is protected from water intrusion from a direct
water jet.
(4) Indicates the degree of protection provided by the unit's front face from oil
particle intrusion into the interior of the unit.
Here, "f" indicates that the unit is completely protected from oil intrusion via
either oil particles or oil splashes from any direction (to the front panel).
For information about the GP's protective structure, refer to page 2-3.
Note: