Sealing plug / thread adapter
D
D.1 Intended use of accessory part
The sealing plug and the thread adapter (components) can be used for installation in electrical
equipment of flameproof" "Ex d" type of protection of groups IIA, IIB, IIC as well as dust
protection by enclosure "Ex t" type of protection.
D.2 Safety instructions for accessory part
WARNING
Incorrect assembly
● The component can be damaged or destroyed or its functionality impaired through
incorrect assembly.
– Mount the component using a suitable tool. Refer to the information in Chapter
"Technical specifications of accessory part (Page 332)", for example, torques for
installation.
● For "Explosion-proof Ex d" type of protection: To ensure an engagement depth of 8 mm,
the enclosure must have a wall thickness of at least 10 mm.
Improper modifications
Danger to personnel, system and environment can result from modifications and repairs of the
component, particularly in hazardous areas.
● Any modification which deviates from the delivery state is not permitted.
Loss of enclosure type of protection
IP protection is not guaranteed without sealant.
● Use a suitable thread sealant.
● If you are using the component in type of protection dust protection by enclosure "Ex t", use
the supplied sealing ring (①, figure in Chapter "Dimension drawing for accessory part
(Page 333)").
Unsuitable fluids in the environment
Danger of injury or damage to device.
Aggressive media in the environment can damage the sealing ring. Type of protection and
device protection may no longer be guaranteed.
● Make sure that the sealing material is suitable for the area of use.
SIPART PS2 with PROFIBUS PA
Operating Instructions, 05/2019, A5E00127926-AC 331
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