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IM 60A02S01-01E-A
3) Electrical connection
The type of electrical connection is stamped near the electrical connection port according to the
following marking.
Thread Size
Marking
ISO M20 x 1.5 female
M
ANSI ½ x 14 NPT female
A
ISO G1/2 x 14 female
G
Notes : Certification Conditions for Safe Use
1. The Stopping Plugs or Blanking Elements shall not be used in conjunction with an
adapter or reducer when installed in a flameproof enclosure.
2. Where Adapters and Reducers without sealing rings are installed in protection by
enclosure (Ex t) equipment for use in explosive dust atmospheres, they shall only be fitted
into enclosures offering a minimum of 5 full threads, in accordance with IEC 60079-
31:2008 clause 5.1.1.
3. When no seal is fitted and the stopping plug is installed in an increased safety (Ex e)
enclosure, the user shall ensure that a minimum degree of protection IP54 is maintained.
4. Where Stopping Plugs without sealing rings are installed in protection by enclosure (Ex t)
equipment for use in explosive dust atmospheres, they may only be fitted into enclosures
offering a minimum of 5 full threads, in accordance with IEC 60079-31:2008 clause 5.1.1.
5. Adapters and Reducers shall not to be used for the direct inter-connection of enclosures.
6. Only one adapter or reducer is to be used with any single cable entry on the associated
equipment.
Location of the Thread Marking