DEHN
Technical Data |
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---|---|
Protection type | Type 2 & 3 |
Protection class | Class 2 |
Earthing arrangement | TN-S |
Phases | 3-phase |
Nominal voltage | 230 / 400 V |
Max operating voltage (L-N) | 275 V |
Voltage protection level | ≤ 1.5 |
Nominal discharge current | 20 kA |
Short circuit strength | 50 kArms |
Frequency | 50 / 60 Hz |
Dimensions |
|
Length | 90 mm |
Width | 72 mm |
*Invisible Heading* |
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---|---|
Height | 66 mm |
Number of modules | 4 |
Connection Data |
|
Cross section single wire from | 1.5 mm² |
Cross section single wire to | 35 mm² |
Remote signalling contact | No |
Connection type | Screw |
Additional Data |
|
Approvals | Kema, UL, VDE |
Tariff code | 85363030 |
Country of origin | DE |
Weight | 0.444 kg |
These DEHN Type 2 & 3 surge arresters are modular, multipole devices engineered to protect low-voltage electrical systems from transient overvoltages and lightning-induced surges. Built to EN 61643-11 and IEC 61643-11 standards, they are suitable for both single-phase and three-phase installations, featuring nominal voltages of 230 / 400 V with a maximum continuous operating voltage (UC) of 275 V (L–N). Each unit can withstand a nominal discharge current (In) of 20 kA (8/20 µs), with short-circuit strength rated up to 50 kArms, and suppresses voltage surges to ≤ 1.5 kV at the protection level (Up). The modular construction spans 3–4 DIN rail widths (approximately 90 × 72 × 66 mm) and includes ACI (Advanced Circuit Interruption) or spark-gap protection modules with visible green/red fault indicators and remote signalling contacts for easy status monitoring.
These arresters are ideal for safeguarding industrial control panels, machinery, distribution boards, and junction boxes, particularly in TN‑S, TN‑C, TT, and TN systems. They protect sensitive electronics, PLCs, motors, and communication equipment from damage due to switching transients and indirect lightning strikes. Their modular, push-in terminal design simplifies installation and maintenance, while the ACI technology ensures automatic disconnection of failed modules, allowing safe online replacement without shutting down the entire system. Combining Type 2 and 3 capabilities in one compact unit makes them particularly valuable for OEMs and electricians seeking reliable, space-conscious and vibration-resistant surge protection .
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Parts | Protection type | Protection class | Earthing arrangement | Phases | Protection lines | Nominal voltage | Max operating voltage (L-N) | Voltage protection level | Nominal discharge current | Short circuit strength | Frequency | Length | Width | Height | Number of modules | Cross section single wire from | Cross section single wire to | Remote signalling contact | Connection type | Approvals | Tariff code | Country of origin | Weight | Price | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]()
DEHNguard M TNS 275 surge arrester
Modular and pluggable four-pole surge arrester
for 230/400 V TN-S systems.
Art:
952400
Copied
|
Type 2 & 3
|
Class 2
|
TN-S
|
3-phase
|
|
230 / 400 V
|
275 V
|
≤ 1.5
|
20 kA
|
50 kArms
|
50 / 60 Hz
|
90 mm
|
72 mm
|
66 mm
|
4
|
1.5 mm²
|
35 mm²
|
No
|
Screw
|
Kema, UL, VDE
|
85363030
|
DE
|
0.444 kg
|
| ||
![]()
DEHNguard M TNS 275 FM surge arrester
Modular and pluggable four-pole surge arrester
for 230/400 V TN-S systems.
Art:
952405
Copied
|
Type 2 & 3
|
Class 2
|
TN-S
|
3-phase
|
|
230 / 400 V
|
275 V
|
≤ 1.5
|
20 kA
|
50 kArms
|
50 / 60 Hz
|
90 mm
|
72 mm
|
66 mm
|
4
|
1.5 mm²
|
35 mm²
|
Yes
|
Screw
|
Kema, UL, VDE
|
85363030
|
DE
|
0.444 kg
|
| ||
![]()
DEHNguard M TT 275 Type 2 surge arrester, Modular and pluggable four-pole surge arrester
for 230/400 V TT and TN-S systems
Art:
952310
Copied
|
Type 2 & 3
|
Class 2
|
TT, TN-S
|
3-phase
|
|
230 / 400 V
|
275 V
|
≤ 1.5
|
20 kA
|
50 kArms
|
50 / 60 Hz
|
90 mm
|
72 mm
|
66 mm
|
4
|
1.5 mm²
|
35 mm²
|
No
|
Screw
|
Kema, UL, VDE
|
85363030
|
DE
|
0.405 kg
|
| ||
![]()
DEHNguard M TN 275 Type 2 surge arrester Modular and pluggable two-pole surge arrester for single-phase 230 V TN systems.
Art:
952200
Copied
|
Type 2 & 3
|
Class 2
|
TN
|
1-phase
|
2
|
230 V
|
275 V
|
≤ 1.5
|
20 kA
|
50 kArms
|
50 / 60 Hz
|
90 mm
|
36 mm
|
66 mm
|
2
|
1.5 mm²
|
35 mm²
|
No
|
Screw
|
Kema, UL, VDE
|
85363030
|
DE
|
0.229 kg
|
| ||
![]()
DEHNguard M TN 275 FM Type 2 surge arrester
Modular and pluggable two-pole surge arrester
for single-phase 230 V TN systems. Includes Fault Indication
Art:
952205
Copied
|
Type 2 & 3
|
Class 2
|
TN
|
1-phase
|
2
|
230 V
|
275 V
|
≤ 1.5
|
20 kA
|
50 kArms
|
50 / 60 Hz
|
90 mm
|
36 mm
|
66 mm
|
2
|
1.5 mm²
|
35 mm²
|
Yes
|
Screw
|
ATEX, IECEx, Kema, UL, VDE
|
85363030
|
DE
|
0.232 kg
|
| ||
![]()
DEHNguard M TNC 275 Type 2 surge arrester
Modular and pluggable three-pole surge arrester
for TN-C systems
Art:
952300
Copied
|
Type 2 & 3
|
Class 2
|
TN-C
|
3-phase
|
|
230 / 400 V
|
275 V
|
≤ 1.5
|
20 kA
|
50 kArms
|
50 / 60 Hz
|
90 mm
|
54 mm
|
66 mm
|
3
|
1.5 mm²
|
35 mm²
|
No
|
Screw
|
Kema, UL, VDE
|
85363030
|
DE
|
0.334 kg
|
| ||
![]()
DEHNguard M TT 275 FM surge arrester Modular and pluggable four-pole surge arrester for 230/400 V TT and TN-S systems with remote signalling contact
Art:
952315
Copied
|
Type 2 & 3
|
Class 2
|
TT, TN-S
|
3-phase
|
|
230 / 400 V
|
275 V
|
≤ 1.5
|
20 kA
|
50 kArms
|
50 / 60 Hz
|
90 mm
|
72 mm
|
66 mm
|
4
|
1.5 mm²
|
35 mm²
|
No
|
Screw
|
ATEX, IECEx, Kema, UL, VDE
|
85363030
|
DE
|
0.415 kg
|
| ||
![]()
DEHNguard M TT 2P 275 surge arrester
Modular and pluggable two-pole surge arrester
for single-phase 230 V TT and TN systems.
Art:
952110
Copied
|
Type 2 & 3
|
Class 2
|
TT, TN
|
1-phase
|
2
|
230 V
|
275 V
|
≤ 1.5
|
20 kA
|
50 kArms
|
50 / 60 Hz
|
90 mm
|
36 mm
|
66 mm
|
2
|
1.5 mm²
|
35 mm²
|
No
|
Screw
|
ATEX, IECEx, Kema, UL, VDE
|
85363030
|
DE
|
0.242 kg
|
| ||
![]()
DEHNguard M TT 2P 275 FM surge arrester
Modular and pluggable two-pole surge arrester
for single-phase 230 V TT and TN systems with remote signalling contact
Art:
952115
Copied
|
Type 2 & 3
|
Class 2
|
TT, TN
|
1-phase
|
2
|
230 V
|
275 V
|
≤ 1.5
|
20 kA
|
50 kArms
|
50 / 60 Hz
|
90 mm
|
36 mm
|
66 mm
|
2
|
1.5 mm²
|
35 mm²
|
Yes
|
Screw
|
ATEX, IECEx, Kema, UL, VDE
|
85363030
|
DE
|
0.228 kg
|
| ||
![]()
DEHNguard MP TNS ACI 275 FM surge arrester 4-pole, modular, pluggable surge arrester with integrated ACI switch/spark-gap and double-push-in connection clamp suitable for stub wiring and feed-through wiring suitable for TN-S systems, width of 4 standard DIN modules with remote signalling contact
Art:
952440
Copied
|
Type 2 & 3
|
II
|
|
|
|
230 / 400 V
|
|
≤ 1.5 kV
|
|
25 kArms
|
|
73 mm
|
72 mm
|
90 mm
|
4
|
|
1.5 mm²
|
Yes
|
|
Kema
|
85363030
|
|
0.449 kg
|
| ||
![]()
Surge arrester Type 2 DEHNguard M multipole for PV systems up to 1500V DC
Art:
952567
Copied
|
Type 2
|
II
|
|
|
|
|
|
≤ 5 kV
|
15 kA
|
|
|
73 mm
|
54 mm
|
90 mm
|
3
|
1.5 mm²
|
35 mm²
|
Yes
|
|
UL, Kema
|
85354000
|
|
0.35 kg
|
|
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