Ross 4500DR-104-07, User Manual, Page: 156 / 161

156 • Certifications and Compliances SRG-4500 User Guide (v7.0)
Installation (over
voltage) Category
Terminals on this product may have different installation (over-voltage) 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, non-conductive 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.
Manufacturing All assemblies manufactured in an ISO9001:2008 registered facility. Steel is 18swg
(1.2mm) thickness CR4GP (Cold Reduced Mill Finish General Purpose) to BS
1449 Plating is zinc and clear passivated to BS EN 12329:2000 FE//ZN8//A (FE =
Steel, ZN8 = 8 mic minimum zinc deposit, A = clear passivation).
All assemblies manufactured in accordance to IPC-A-610E class 2 suitability
standard.
All assemblies manufactured in accordance to ISO14001:2004 environmental
standard.
IEC Characteristics Equipment Type:
Test and
Measuring
• Installation Category II (Single-phase, receptacle -connected
loads)
• Pollution Degree 2 (Normally only non-conductive pollution
occurs)
• Safety Class I (Grounded product)
• Temperature 5°C to 40°C
Table 18.1 EC Declaration of Conformity - EMC
Category Standards or Description