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Quick Start Guide
Standards
Markings
ATEX Flameproof and Increased Safety
Certificate
Standards
Markings
Table 4-6: Conduit Plug Thread Sizes
Thread
M20 x 1.5
½–14 NPT
Table 4-7: Thread Adapter Thread Sizes
Male thread
M20 x 1.5–6g
½–14 NPT
¾–14 NPT
Female thread
M20 x 1.5–6H
½–14 NPT
G½
Special Conditions for Safe Use (X):
1. When the thread adapter or blanking plug is used with an enclosure in
type of protection increased safety "e" the entry thread shall be
suitably sealed in order to maintain the ingress protection rating (IP) of
the enclosure.
2. The blanking plug shall not be used with an adapter.
3. Blanking Plug and Threaded Adapter shall be either NPT or Metric
thread forms. G½ thread forms are only acceptable for existing
(legacy) equipment installations.
34
IEC60079-0:2011, IEC60079-1:2007, IEC60079-7:2006-2007
Ex de IIC Gb
FM13ATEX0076X
EN60079-0:2012, EN60079-1:2007, IEC60079-7:2007
II 2 G Ex de IIC Gb
Identification mark
M20
½ NPT
Identification mark
M20
½–14 NPT
¾–14 NPT
Identification mark
M20
½–14 NPT
G½
February 2019
Emerson.com/Rosemount
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