New Products

SPDs for Use in Potentially Explosive Atmospheres
• Surge protective device for field devices with
spare cable gland or field bus distributors in
hazardous areas
• Easy to retrofit and extremely space-saving
• ATEX, IECEx, CSA Hazloc approval
DEHNpipe CD Ex (d)
Surge arrester
Surge arrester for outdoor use to be screwed onto two-wire field devices.
Stainless steel. Installation up to a degree of protection IP 67.
The flameproof DEHNpipe C surge arrester is made of corrosion-resistant
stainless steel and is directly screwed onto the field device. Like a field
cable, the permanently connected lines are connected to the terminals of
the field device. Thus, the protection components are situated in parallel
to the cable run. The device can be easily connected to metal or plastic
field enclosures as the earth wire of the protective device can be connected
to the earth terminal of a field device.
The design of the surge arrester allows a degree of protection IP 67.
These flameproof arresters are typically used in 4-20 mA measuring circuits
or bus systems up to 30 V. Depending on the type used, DEHNpipe C
is designed for measuring sensors with M 20 x 1.5 or 1/2-14 NPT cable
gland connections and can be either installed in Ex zone 1 or 2.
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