Specifications
14
P6339A Instruction Manual
Table 5: Certifications and compliances (cont.)
Installation
(Overvoltage)
Category
Terminals on this product may have different installation
(overvoltage) category designations. The installation categories are:
CAT III
Distribution-level mains (usually permanently connected).
Equipment at this level is typically in a fixed industrial
location.
CAT II
Local-level mains (wall sockets). Equipment at this level
includes appliances, portable tools, and similar products.
Equipment is usually cord-connected.
CAT I
Secondary (signal level) or battery operated circuits of
electronic equipment.
Pollution Degree
A measure of the contaminates that could occur in the environment
around and within a product. Typically the internal environment
inside a product is considered to be the same as the external.
Products should be used only in the environment for which they are
rated.
Pollution Degree 2
Normally only dry, nonconductive pollution occurs.
Occasionally a temporary conductivity that is caused by
condensation must be expected. This location is a
typical office/home environment. Temporary
condensation occurs only when the product is out of
service.
