Page 251 - Surge-Protection-E_0.pdf

Isolating Spark Gaps

EXFS L / EXFS KU
• For indirect connection / earthing of functionally isolated parts
of installations under lightning conditions
• For lightning equipotential bonding according to IEC 62305
in hazardous areas (zone 2)
• Corrosion-resistant zinc die-cast enclosure with plastic cover
and flexible cable connection
• For bridging insulating joints, insulating flanges, etc. in
cathodically protected pipe sections
• Extremely heavy-duty device
• Approval according to ATEX directive 94/9/EC and IECEx
Isolating Spark Gaps

ATEX and IECEx-certified isolating spark gap for lightning equipotential bonding
according to IEC 62305 with flexible cable connection.

EXFS L ...: Isolating spark gap for use in hazardous areas with flexible connecting cable
EXFS KU: Isolating spark gap for use in hazardous areas with two 1.5 m long connecting cables for underground installation

Ex isolating spark gaps of the EXFS L / EXFS KU product line are used when The approved EXFS L Type with flexible cable connection quickly adapts
electrically conductive parts of installations cannot be directly intercon- to any application environment. The prewired spark gaps feature connect-
nected in hazardous areas, for example, in case of cathodically protected ing cables of different lengths with cable lug, screw and M10 nut. The flat
pipeline sections. or angled connection brackets (IF), which are available as accessories,
ATEX and IECEx-certified EXFS L and EXFS KU spark gaps provide ap- enable simple connection of the spark gap to pipeline flanges.
proved safety in accordance with harmonised European standards. The EXFS KU Type is enclosed by a water-proof PVC sheath and is thus
The arc-resistant tungsten / copper electrodes ensure a long service life of ideally suited for underground installation on insulating couplings.
the Ex spark gaps.

EXFS L 923 060 923 061 923 062 EXFS L100 EXFS L200 EXFS L300
Ex isolating spark gap for aboveground installation.
923 060 4013364038899 04 01 05 02 725 g
221,80 €
923 061 4013364038905 04 01 05 02 750 g
923 062 221,80 € 4013364038912 04 01 05 02 733 g
Type EXFS ... L100 L200 L300
221,80 €
Part No. 923 060 923 061 923 062
Isolating spark gap according to EN 62561-3 / IEC 62561-3 yes yes yes
Lightning impulse current (10/350 µs) (Iimp) 50 kA 50 kA 50 kA
Class (lightning current carrying capability) N N N
Rated impulse sparkover voltage (Ur imp) ≤ 2.5 kV ≤ 2.5 kV ≤ 2.5 kV
Degree of protection IP 54 IP 54 IP 54
ATEX approvals DEKRA 11ATEX0146 X DEKRA 11ATEX0146 X DEKRA 11ATEX0146 X
Ex marking according to EN 60079-0 and EN 60079-15: gas II 3 G Ex nC IIC T4 Gc II 3 G Ex nC IIC T4 Gc II 3 G Ex nC IIC T4 Gc
IECEx approvals IECEx DEK 11.0063X IECEx DEK 11.0063X IECEx DEK 11.0063X
Ex marking according to EN 60079-0 Ex nC IIC T4 Gc Ex nC IIC T4 Gc Ex nC IIC T4 Gc
Cable length 100 mm 200 mm 300 mm

EXFS KU 923 019 EXFS KU
Ex isolating spark gap with connecting cables for aboveground and underground installation; with water-proof sheath;
can be shortened to keep cables as short as possible. 923 019 kg 4013364033177 04 01 05 02 1.70
466,80 €

Type EXFS ... KU
Part No. 923 019
Isolating spark gap according to EN 62561-3 / IEC 62561-3 yes
Lightning impulse current (10/350 µs) (Iimp) 50 kA
Class (lightning current carrying capability) N
Rated impulse sparkover voltage (Ur imp) ≤ 2.5 kV
Degree of protection IP 67
ATEX approvals DEKRA 11ATEX0146 X
Ex marking according to EN 60079-0 and EN 60079-15: gas II 3 G Ex nC IIC T4 Gc
IECEx approvals IECEx DEK 11.0063X
Ex marking according to EN 60079-0 Ex nC IIC T4 Gc
Cable length 2x approx. 1500 mm

Valid as of August 1, 2020 You will find detailed product information on our website 247