Siemens SIPART PS2 6DR5.1-E Instrucciones De Operación página 59

①
Sealing ring: Use for dust protection "Ex t" type of
protection.
Thread adapter Ex d, M25 x 1.5 on M20 x 1.5 and M25 x 1.5
on ½-14 NPT, dimensions in mm
Sealing plug Ex d ½ -14 NPT
SIPART PS2 (6DR5...)
57
A5E03436620-AB, 01/2017