Type PF42RF03/BF32/S7X Hermes Series Flameproof Pressure Switch as detailed on forwarded data sheets and as below: 

Switch body material : 316 stainless steel. 

Wetted parts : 316 stainless steel with Viton seals. 

Range : 150 – 650 Bar 

Setting : 350 Bar Falling 

Max. working pressure : 700 Bar g. 

Process connection : ¼" NPT female 

Electrical connection : M20 x 1.5 ISO male fitting with 3 metre3 of 7 core x 0.752 silicon insulated cable. 

Microswitch : 2 x SPDT, Inductive rating 3A @ 30V dc / 5A @ 240V ac 

Ingress protection : IP67 

ATEX/IECEx Certification : Ex II2G Exd IIC Gb T6 Tamb -50°C to +71°C, T5 Tamb -50°C to +86°C, T4 Tamb -50°C to +100°C