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    Surge arrester for outdoor use to be screwed onto two-wire field devices. Stainless steel, installation with cable gland up to IP 67.
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DEHNpipe

Surge arresters to be screwed onto field devices
  • Parallel or series connection
  • Made of corrosion-resistant stainless steel
  • Arrester for protecting a second interface (data or power side) available

Types for Ex (i) and Ex (d) applications
  • For protecting intrinsically safe measuring circuits and bus systems Ex (i)
  • Type in a flameproof enclosure Ex (d)

Variety of approvals
  • Approvals depending on the arrester: IECEx, ATEX, FISCO, CSA Hazloc

DPI MD

Energy-coordinated two-stage arrester, no leakage currents to earth, for 4-20 mA interfaces with thread M20 x 1.5 (female/male). Direct, indirect or no shield earthing. Cable gland available as accessory part.
Art.-Nr. 929941
DPI MD 24 M 2S
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DPI MD EX

Energy-coordinated two-stage surge arrester with low-capacitance protective circuit for protecting intrinsically safe measuring circuits and bus systems, meets FISCO requirements. Insulation strength > 500 V to earth. Cable glands must be ordered separately.
Art.-Nr. 929960
DPI MD EX 24 M 2
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DPI MD EX

Energy-coordinated two-stage surge arrester with low-capacitance protective circuit for protecting intrinsically safe measuring circuits and bus systems, meets FISCO requirements. Insulation strength > 500 V to earth. Cable glands must be ordered separately.
Art.-Nr. 929965
DPI MD EX 24 N 2
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DPI CD EXI

Surge arrester with a low-capacitance protective circuit for protecting intrinsically safe measuring circuits and bus systems, meets FISCO requirements. Insulation strength > 500 V to earth.
Art.-Nr. 929961
DPI CD EXI 24 M
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DPI CD EXI

Surge arrester with a low-capacitance protective circuit for protecting intrinsically safe measuring circuits and bus systems, meets FISCO requirements. Insulation strength > 500 V to earth.
Art.-Nr. 929963
DPI CD EXI 24 N
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DPI CD EXD

Flameproof surge arrester with a low-capacitance protective circuit for protecting measuring circuits and bus systems in potentially explosive atmospheres. Insulation strength > 500 V to earth. Certified to CSA and USA Hazloc standards.
Art.-Nr. 929962
DPI CD EXD 24 M
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DPI CD EXD

Flameproof surge arrester with a low-capacitance protective circuit for protecting measuring circuits and bus systems in potentially explosive atmospheres. Insulation strength > 500 V to earth. Certified to CSA and USA Hazloc standards.
Art.-Nr. 929964
DPI CD EXD 24 N
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DPI CD HF EXD

Flameproof surge arrester in an energy-coordinated low-capacitance protective circuit for use in potentially explosive atmospheres for protecting measuring circuits and bus systems.
Art.-Nr. 929971
DPI CD HF EXD 5 M
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DPI CD EXD 230 24

Flameproof surge arrester for the data and power side for protecting one 120 / 230 V power supply system and one 24 V data interface of field devices in potentially explosive areas (zones 1 and 2).
Additional safety due to fault-proof Y circuit for 120 / 230 V power supply systems.


II 2 G Ex d IIC T5/T6 version universally applicable in hazardous zones 1 and 2. Certified to CSA and USA Hazloc standards.
Art.-Nr. 929969
DPI CD EXD 230 24 M
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DPI CD EXD 230 24

Flameproof surge arrester for the data and power side for protecting one 120 / 230 V power supply system and one 24 V data interface of field devices in potentially explosive areas (zones 1 and 2).
Additional safety due to fault-proof Y circuit for 120 / 230 V power supply systems.


II 2 G Ex d IIC T5/T6 version universally applicable in hazardous zones 1 and 2. Certified to CSA and USA Hazloc standards.
Art.-Nr. 929970
DPI CD EXD 230 24 N
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DPI CD EXI+D 2X24

Flameproof surge arrester for use in potentially explosive atmospheres for protecting two 24 V interfaces
Art.-Nr. 929950
DPI CD EXI+D 2X24 M
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DPI CD EXI+D 2X24

Flameproof surge arrester for use in potentially explosive atmospheres for protecting two 24 V interfaces
Art.-Nr. 929951
DPI CD EXI+D 2X24 N
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DPI CD EXI+D EAS 15 M

Surge arrester in a flameproof enclosure for use in potentially explosive atmospheres for protecting field devices with Ethernet network termination interface and PROFIBUS PA. Fulfils the requirements of 2-WISE and FISCO Insulation strength >500 V line-earth.
Art.-Nr. 929974
DPI CD EXI+D EAS 15 M
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DPI CD EXI+D EAS 15 N

Surge arrester in a flameproof enclosure for use in potentially explosive atmospheres for protecting field devices with Ethernet network termination interface and PROFIBUS PA. Fulfils the requirements of 2-WISE and FISCO Insulation strength >500 V line-earth.
Art.-Nr. 929975
DPI CD EXI+D EAS 15 N
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