DEHNguard® modular NL

Modular multipole surge arrester with N conductor connection on the left side

For protecting low-voltage consumer's installations against surges. For installation in conformity with the lightning protection zones concept at the boundaries from 0B– 1 and higher.
  • Prewired complete unit consisting of a base part and plug-in protection modules
  • Energy coordination with other arresters of the Red/Line product family
  • High discharge capacity due to heavy-duty zinc oxide varistors/spark gaps
  • High reliability due to "Thermo Dynamic Control" SPD monitoring device
  • Easy replacement of protection modules without tools due to module locking system with module release button
  • Vibration and shock-tested according to EN 60068-2

Versions

DEHNguard M TNS 275 NL ...: Modular surge arrester for TN-S systems
DEHNguard M TT 275 NL ...: Modular surge arrester for TT and TN-S systems ("3+1" circuit)
DEHNguard M TN 275 NL ...: Modular surge arrester for 230 V TN systems
DEHNguard M TT 2P 275 NL ...: Modular surge arrester for 230 V TT and TN systems ("1+1" circuit)
DEHNguard M ... NL FM: With remote signalling contact for monitoring unit (floating changeover contact)

Models

DEHNguard M TNS 275 NL (FM)

DEHNguard M TT 275 NL (FM)

DEHNguard M TN 275 NL (FM)

DEHNguard M TT 2P 275 NL (FM)

DEHNguard M TNS 275 NL (FM)

Basic circuit diagram DG M TNS 275 NL FM
Dimension drawing DG M TNS 275 NL FM

Modular surge arrester for TN-S systems, neutral conductor on the left side

Specifications

Type
Part No.
SPD according to EN 61643-11 / IEC 61643-11
Nominal voltage (a.c.) (UN)
Max. continuous operating voltage (a.c.) (UC)
Nominal discharge current (8/20 µs) (In)
Max. discharge current (8/20 µs) (Imax)
Voltage protection level (UP)
Voltage protection level at 5 kA (UP)
Response time (tA)
Max. mains-side overcurrent protection
Short circuit withstand capability for max. mains-side overcurrent protection (ISCCR)
Temporary overvoltage (TOV) (UT) – Characteristic
Temporary overvoltage (TOV) (UT) – Characteristic
Operating temperature range (TU)
Operating state/fault indication
Number of ports
Cross-sectional area (min.)
Cross-sectional area (max.)
For mounting on
Enclosure material
Place of installation
Degree of protection
Dimensions
Approvals
Type of remote signalling contact
Switching capacity (a.c.)
Switching capacity (d.c.)
Cross-sectional area for remote signalling terminals
Weight
GTIN
PU
Part No.

DEHNguard M TT 275 NL (FM)

Basic circuit diagram DG M TT 275 NL FM
Dimension drawing DG M TT 275 NL FM

Modular surge arrester for TT and TN-S systems (3+1 configuration), neutral conductor on the left side.

Specifications

Type
Part No.
SPD according to EN 61643-11 / IEC 61643-11
Nominal voltage (a.c.) (UN)
Max. continuous operating voltage (a.c.) [L-N] (UC)
Max. continuous operating voltage (a.c.) [N-PE] (UC)
Nominal discharge current (8/20 µs) (In)
Max. discharge current (8/20 µs) (Imax)
Lightning impulse current (10/350 µs) [N-PE] (Iimp)
Voltage protection level [L-N] (UP)
Voltage protection level [L-N] at 5 kA (UP)
Voltage protection level [N-PE] (UP)
Follow current extinguishing capability [N-PE] (Ifi)
Response time [L-N] (tA)
Response time [N-PE] (tA)
Max. mains-side overcurrent protection
Short circuit withstand capability for max. mains-side overcurrent protection (ISCCR)
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic
Temporary overvoltage (TOV) [N-PE] (UT) – Characteristic
Operating temperature range (TU)
Operating state/fault indication
Number of ports
Cross-sectional area (min.)
Cross-sectional area (max.)
For mounting on
Enclosure material
Place of installation
Degree of protection
Dimensions
Approvals
Type of remote signalling contact
Switching capacity (a.c.)
Switching capacity (d.c.)
Cross-sectional area for remote signalling terminals
Weight
GTIN
PU
Part No.

DEHNguard M TN 275 NL (FM)

Basic circuit diagram DG M TN 275 NL FM
Dimension drawing DG M TN 275 NL FM

Modular surge arrester for single-phase 230 V TN systems, neutral conductor on the left side

Specifications

Type
Part No.
SPD according to EN 61643-11 / IEC 61643-11
Nominal voltage (a.c.) (UN)
Max. continuous operating voltage (a.c.) (UC)
Nominal discharge current (8/20 µs) (In)
Max. discharge current (8/20 µs) (Imax)
Voltage protection level (UP)
Voltage protection level at 5 kA (UP)
Response time (tA)
Max. mains-side overcurrent protection
Short circuit withstand capability for max. mains-side overcurrent protection (ISCCR)
Temporary overvoltage (TOV) (UT) – Characteristic
Temporary overvoltage (TOV) (UT) – Characteristic
Operating temperature range (TU)
Operating state/fault indication
Number of ports
Cross-sectional area (min.)
Cross-sectional area (max.)
For mounting on
Enclosure material
Place of installation
Degree of protection
Dimensions
Approvals
Type of remote signalling contact
Switching capacity (a.c.)
Switching capacity (d.c.)
Cross-sectional area for remote signalling terminals
Weight
GTIN
PU
Part No.

DEHNguard M TT 2P 275 NL (FM)

Basic circuit diagram DG M TT 2P 275 NL FM
Dimension drawing DG M TT 2P 275 NL FM

Modular surge arrester for single-phase 230 V TT and TN systems (1+1 configuration), neutral conductor on the left side

Specifications

Type
Part No.
SPD according to EN 61643-11 / IEC 61643-11
Nominal voltage (a.c.) (UN)
Max. continuous operating voltage (a.c.) [L-N] (UC)
Max. continuous operating voltage (a.c.) [N-PE] (UC)
Nominal discharge current (8/20 µs) (In)
Max. discharge current (8/20 µs) (Imax)
Lightning impulse current (10/350 µs) [N-PE] (Iimp)
Voltage protection level [L-N] (UP)
Voltage protection level [L-N] at 5 kA (UP)
Voltage protection level [N-PE] (UP)
Follow current extinguishing capability [N-PE] (Ifi)
Response time [L-N] (tA)
Response time [N-PE] (tA)
Max. mains-side overcurrent protection
Short circuit withstand capability for max. mains-side overcurrent protection (ISCCR)
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic
Temporary overvoltage (TOV) [N-PE] (UT) – Characteristic
Operating temperature range (TU)
Operating state/fault indication
Number of ports
Cross-sectional area (min.)
Cross-sectional area (max.)
For mounting on
Enclosure material
Place of installation
Degree of protection
Dimensions
Approvals
Type of remote signalling contact
Switching capacity (a.c.)
Switching capacity (d.c.)
Cross-sectional area for remote signalling terminals
Weight
GTIN
PU
Part No.