Page 117 - Surge-Protection-E_0.pdf

Surge Arresters – Type 3

DEHNflex
• Two-pole surge arrester with monitoring device and
disconnector
• Enhanced safety due to fault-proof Y protective circuit
• Acoustic fault indication
• Compact design
• For use in flush-mounted systems, cable ducts and
flush-type boxes

DEHNflex M: Compact design; for use in cable duct systems and
flush-type boxes
DEHNflex A: For use in any cable duct systems or flush-type boxes;
with test function For protecting electronic equipment against surges. For installation in electrical
installation systems, e.g. flush-mounted systems, cable ducts and flush-type boxes.
DEHNflex D: Like DEHNflex A, but for series connection of several German utility patent for DEHNflex A / ... D. For installation in conformity with the
socket outlets lightning protection zone concept at the boundaries from 1 – 2 and higher.

As the name suggests, the DEHNflex family offers almost unlimited appli- The fault-proof Y protective circuit always ensures safety even if the phase
cation options. Being two-pole surge arresters, the compact modules are and neutral conductor cannot be identified. Apart from the powerful Y
ideally suited for protecting electronic consumers in final circuits. The circuit, the compact enclosure also houses a disconnector and an acoustic
design was adapted to the most common places of installation, that is fault indicator. Be it in cable ducts, flush-mounted systems, branching
cable ducts and flush-type boxes. DEHNflex devices clearly prove that boxes or device casings – DEHNflex is always installed in the right place
small and compact dimensions do not necessarily mean low performance. close to terminal equipment.

DEHNflex M 924 396 DFL M 255
Surge arrester for single-phase 230 V TT and TN systems for use in all installation systems of terminal equipment; compact dimensions.
924 396 4013364091016 04 01 03 02 32 g
90,20 €
Type DFL ... M 255
Part No. 924 396
SPD according to EN 61643-11 / IEC 61643-11 type 3 / class III
Max. continuous operating voltage (a.c.) (UC) 255 V (50 / 60 Hz)
Nominal discharge current (8/20 µs) (In) 1.5 kA
Total discharge current (8/20 µs) [L+N-PE] (Itotal) 3 kA 126 50
Voltage protection level [L-N] / [L/N-PE] (UP) ≤ 1250 / ≤ 1500 V 30
Max. mains-side overcurrent protection B 16 A 116
Fault indication acoustic signal on 11
Dimensions 30 x 50 x 11 mm

924 389 DFL A 255
205
137
924 395 DFL D 255
924 389 4013364073692 04 01 03 02 36 g
36 22
101,60 €
121 46 924 395 4013364076334 04 01 03 02 67 g
124,20 €
DEHNflex A 36 DEHNflex D 11 19
Surge arrester for single-phase 230 V TT and TN 22 46 Surge arrester for single-phase 230 V TT and TN 24
systems for use in all installation systems of terminal systems for use in all installation systems of terminal
equipment; 11 19 equipment; allows series connection;
with test function; compact dimensions. 24 with test function; compact dimensions. Surge Arresters – Type 3
Type DFL ... A 255 Type DFL ... D 255
Part No. 924 389 Part No. 924 395
SPD according to EN 61643-11 / IEC 61643-11 type 3 / class III SPD according to EN 61643-11 / IEC 61643-11 type 3 / class III
Max. continuous operating voltage (a.c.) (UC) 255 V (50 / 60 Hz) Max. continuous operating voltage (a.c.) (UC) 255 V (50 / 60 Hz)
Nominal discharge current (8/20 µs) (In) 3 kA Nominal discharge current (8/20 µs) (In) 3 kA
Total discharge current (8/20 µs) [L+N-PE] (Itotal) 5 kA Total discharge current (8/20 µs) [L+N-PE] (Itotal) 5 kA
Voltage protection level [L-N] / [L/N-PE] (UP) ≤ 1250 / ≤ 1500 V Voltage protection level [L-N] / [L/N-PE] (UP) ≤ 1250 / ≤ 1500 V
Max. mains-side overcurrent protection B 16 A Max. mains-side overcurrent protection B 16 A
Fault indication acoustic signal on Fault indication acoustic signal on
Dimensions 36 x 46 x 19 mm Dimensions 36 x 46 x 19 mm

Valid as of August 1, 2020 You will find detailed product information on our website 113