Siemens SIMATIC ET 200iS Manual page 363

Types of Protection
Table 21-4 Types of Protection
Type of Protection Schematic
Representation
Increased safety e
Explosion-proof d
enclosure
Pressurized p
enclosure
Intrinsic safety i*
Oil immersion o
ET 200iS Distributed I/O Station
A5E00087831-02
Types of Protection
Main Application
Terminals and terminal boxes,
control boxes for installation of
components (with a different type
of explosion protection), cage
motors, lamps
Switching device and switchgear,
control and display devices,
controllers, motors, transformers,
heaters, lamps
Switch gear and control cubicles,
analytic devices, large motors
Instrumentation and control
engineering, communications
engineering, sensors, actuators
Transformers, starting resistors
Marking
Standard
EN 50 019
IEC 60 079-7
FM 3600
UL 2279
EN 50 018
IEC 60 079-1
FM 3600
UL 2279
EN 50 016
IEC 60 079-2
FM 3620
NFPA 496
EN 50 020
IEC 60 079-11
FM 3610
UL 2279
EN 50 015
IEC 60 079-6
FM 3600
UL 2279
21-5