DEHNrail modular

Pluggable two-pole Surge Arrester

For protecting the power supply circuits of industrial electronics equipment against transients in switchgear cabinets. For installation in conformity with the lightning protection zone concept at the boundaries from 1 – 2 and higher.
  • Two-pole surge arrester consisting of a base part and a plug-in protection module
  • High discharge capacity due to heavy-duty zinc oxide varistor / spark gap combination
  • Energy coordination with other arresters of the Red/Line product family
  • Operating state / fault indication by green / red indicator flag in the inspection window
  • Narrow (modular) design according to DIN 43880
  • Easy replacement of protection modules due to module locking system with module release button
  • Vibration and shock-tested according to EN 60068-2

Version

DEHNrail M 2P ...: Two-pole surge arrester consisting of a base part and a plug-in protection module
DEHNrail M 2P ... FM: With remote signalling contact for monitoring device (floating changeover contact)

Details

The modular devices of the DEHNrail M product family stand out due to their high performance parameters and straightforward Red/Line design. The devices combine safety and ease of use in a single module. The low voltage protection level and the comprehensive protection against common-mode and differential-mode interference make them ideal for protecting terminal equipment in industrial electronics environments. The input and output terminals for series connection and the protective circuit designed for high load currents underline this concept.

The very compact design of the DEHNrail M surge arresters includes the fault-proof Y protective circuit and a combined SPD monitoring and disconnection device.

The base part and protection module are coded to ensure against installing an incorrect module.

The unique module locking system of the DEHNrail M product family fixes the protection module to the base part. Neither vibration during transport nor the electrodynamic forces of discharge can loosen the connection.

In the event of the protective circuit being overloaded, the protection modules can be easily replaced without tools by simply pressing the module release button.

In addition to the standard visual indication with green and red indicator flags, DEHNrail M ... FM devices feature a three-pole remote signalling terminal. With its floating changeover contact, the remote signal can be used as a break or make contact according to the particular circuit concept.

Models

DEHNrail M 2P ...

DEHNrail M 2P ... FM

DEHNrail M 2P SN1802

DEHNrail M 2P SN1803FM

DEHNrail M 2P ...

Basic circuit diagram DR M 2P ...Dimension drawing DR M 2P ...

Two-pole surge arrester consisting of a base part and a plug-in protection module.


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)
Max. continuous operating voltage (d.c.) (UC)
Nominal load current (a.c.) (IL)
Nominal discharge current (8/20 µs) (In)
Total discharge current (8/20 µs) [L+N-PE] (Itotal)
Combination wave (UOC)
Combination wave [L+N-PE] (UOC total)
Voltage protection level [L-N] / [L/N-PE] (UP)
Response time [L-N] (tA)
Response time [L/N-PE] (tA)
Max. mains-side overcurrent protection
Short-circuit withstand capability for mains-side overcurrent protection with 25 A gG (ISCCR)
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic
Temporary overvoltage (TOV) [L/N-PE] (UT) – Characteristic
Temporary overvoltage (TOV) [L/N-PE] (UT) – Characteristic
Temporary overvoltage (TOV) [L+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
Capacity
Approvals
Weight
GTIN
PU
Part No.
  • DR M 2P 30
  • 953 201
  • type 3 / class III
  • 24 V (50 / 60 Hz)
  • 30 V (50 / 60 Hz)
  • 30 V
  • 25 A
  • 1 kA
  • 2 kA
  • 2 kV
  • 4 kV
  • ≤ 180 / ≤ 630 V
  • ≤ 25 ns
  • ≤ 100 ns
  • 25 A gG or B 25 A
  • 6 kArms
  •  
  •  
  •  
  •  
  •  
  • -40 °C ... +80 °C
  • green / red
  • 1
  • 0.5 mm2 solid / flexible
  • 4 mm2 solid / 2.5 mm2 flexible
  • 35 mm DIN rails acc. to EN 60715
  • thermoplastic, red, UL 94 V-0
  • indoor installation
  • IP 20
  • 1  module(s), DIN 43880
  • KEMA, VDE, UL, CSA
  • 80 g
  • 4013364109674
  • 1 pc(s)
  • 953 201
  • Specifications (PDF)
  • More
  • DR M 2P 60
  • 953 202
  • type 3 / class III
  • 48 V (50 / 60 Hz)
  • 60 V (50 / 60 Hz)
  • 60 V
  • 25 A
  • 1 kA
  • 2 kA
  • 2 kV
  • 4 kV
  • ≤ 350 / ≤ 730 V
  • ≤ 25 ns
  • ≤ 100 ns
  • 25 A gG or B 25 A
  • 6 kArms
  •  
  •  
  •  
  •  
  •  
  • -40 °C ... +80 °C
  • green / red
  • 1
  • 0.5 mm2 solid / flexible
  • 4 mm2 solid / 2.5 mm2 flexible
  • 35 mm DIN rails acc. to EN 60715
  • thermoplastic, red, UL 94 V-0
  • indoor installation
  • IP 20
  • 1  module(s), DIN 43880
  • KEMA, VDE, UL, CSA
  • 81 g
  • 4013364109681
  • 1 pc(s)
  • 953 202
  • Specifications (PDF)
  • More
  • DR M 2P 150
  • 953 204
  • type 3 / class III
  • 120 V (50 / 60 Hz)
  • 150 V (50 / 60 Hz)
  • 150 V
  • 25 A
  • 2 kA
  • 4 kA
  • 4 kV
  • 8 kV
  • ≤ 640 / ≤ 800 V
  • ≤ 25 ns
  • ≤ 100 ns
  • 25 A gG or B 25 A
  • 6 kArms
  •  
  •  
  •  
  •  
  •  
  • -40 °C ... +80 °C
  • green / red
  • 1
  • 0.5 mm2 solid / flexible
  • 4 mm2 solid / 2.5 mm2 flexible
  • 35 mm DIN rails acc. to EN 60715
  • thermoplastic, red, UL 94 V-0
  • indoor installation
  • IP 20
  • 1  module(s), DIN 43880
  • KEMA, VDE, UL, CSA
  • 79 g
  • 4013364109704
  • 1 pc(s)
  • 953 204
  • Specifications (PDF)
  • More
  • DR M 2P 255
  • 953 200
  • type 3 / class III
  • 230 V (50 / 60 Hz)
  • 255 V (50 / 60 Hz)
  • 255 V
  • 25 A
  • 3 kA
  • 5 kA
  • 6 kV
  • 10 kV
  • ≤ 1250 / ≤ 1500 V
  • ≤ 25 ns
  • ≤ 100 ns
  • 25 A gG or B 25 A
  • 6 kArms
  • 335 V / 5 sec. – withstand
  • 440 V / 120 min. – safe failure
  • 335 V / 120 min. – withstand
  • 440 V / 5 sec. – withstand
  • 1200 V + UREF / 200 ms – safe failure
  • -40 °C ... +80 °C
  • green / red
  • 1
  • 0.5 mm2 solid / flexible
  • 4 mm2 solid / 2.5 mm2 flexible
  • 35 mm DIN rails acc. to EN 60715
  • thermoplastic, red, UL 94 V-0
  • indoor installation
  • IP 20
  • 1  module(s), DIN 43880
  • KEMA, VDE, UL, CSA
  • 81 g
  • 4013364108301
  • 1 pc(s)
  • 953 200
  • Specifications (PDF)
  • More

DEHNrail M 2P ... FM

Basic circuit diagram DR M 2P ... FMDimension drawing DR M 2P ... FM

Two-pole surge arrester consisting of a base part and a plug-in protection module; with floating remote signalling contact.


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)
Max. continuous operating voltage (d.c.) (UC)
Nominal load current (a.c.) (IL)
Nominal discharge current (8/20 µs) (In)
Total discharge current (8/20 µs) [L+N-PE] (Itotal)
Combination wave (UOC)
Combination wave [L+N-PE] (UOC total)
Voltage protection level [L-N] / [L/N-PE] (UP)
Response time [L-N] (tA)
Response time [L/N-PE] (tA)
Max. mains-side overcurrent protection
Short-circuit withstand capability for mains-side overcurrent protection with 25 A gG (ISCCR)
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic
Temporary overvoltage (TOV) [L/N-PE] (UT) – Characteristic
Temporary overvoltage (TOV) [L/N-PE] (UT) – Characteristic
Temporary overvoltage (TOV) [L+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
Capacity
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.
  • DR M 2P 30 FM
  • 953 206
  • type 3 / class III
  • 24 V (50 / 60 Hz)
  • 30 V (50 / 60 Hz)
  • 30 V
  • 25 A
  • 1 kA
  • 2 kA
  • 2 kV
  • 4 kV
  • ≤ 180 / ≤ 630 V
  • ≤ 25 ns
  • ≤ 100 ns
  • 25 A gG or B 25 A
  • 6 kArms
  •  
  •  
  •  
  •  
  •  
  • -40 °C ... +80 °C
  • green / red
  • 1
  • 0.5 mm2 solid / flexible
  • 4 mm2 solid / 2.5 mm2 flexible
  • 35 mm DIN rails acc. to EN 60715
  • thermoplastic, red, UL 94 V-0
  • indoor installation
  • IP 20
  • 1  module(s), DIN 43880
  • KEMA, VDE, UL, CSA
  • changeover contact
  • 250 V / 0.5 A
  • 250 V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A
  • max. 1.5 mm2 solid / flexible
  • 84 g
  • 4013364109711
  • 1 pc(s)
  • 953 206
  • Specifications (PDF)
  • More
  • DR M 2P 60 FM
  • 953 207
  • type 3 / class III
  • 48 V (50 / 60 Hz)
  • 60 V (50 / 60 Hz)
  • 60 V
  • 25 A
  • 1 kA
  • 2 kA
  • 2 kV
  • 4 kV
  • ≤ 350 / ≤ 730 V
  • ≤ 25 ns
  • ≤ 100 ns
  • 25 A gG or B 25 A
  • 6 kArms
  •  
  •  
  •  
  •  
  •  
  • -40 °C ... +80 °C
  • green / red
  • 1
  • 0.5 mm2 solid / flexible
  • 4 mm2 solid / 2.5 mm2 flexible
  • 35 mm DIN rails acc. to EN 60715
  • thermoplastic, red, UL 94 V-0
  • indoor installation
  • IP 20
  • 1  module(s), DIN 43880
  • KEMA, VDE, UL, CSA
  • changeover contact
  • 250 V / 0.5 A
  • 250 V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A
  • max. 1.5 mm2 solid / flexible
  • 85 g
  • 4013364109728
  • 1 pc(s)
  • 953 207
  • Specifications (PDF)
  • More
  • DR M 2P 75 FM
  • 953 208
  • type 3 / class III
  • 60 V (50 / 60 Hz)
  • 75 V (50 / 60 Hz)
  • 75 V
  • 25 A
  • 2 kA
  • 4 kA
  • 4 kV
  • 8 kV
  • ≤ 400 / ≤ 730 V
  • ≤ 25 ns
  • ≤ 100 ns
  • 25 A gG or B 25 A
  • 6 kArms
  •  
  •  
  •  
  •  
  •  
  • -40 °C ... +80 °C
  • green / red
  • 1
  • 0.5 mm2 solid / flexible
  • 4 mm2 solid / 2.5 mm2 flexible
  • 35 mm DIN rails acc. to EN 60715
  • thermoplastic, red, UL 94 V-0
  • indoor installation
  • IP 20
  • 1 module(s), DIN 43880
  • KEMA, VDE, UL, CSA
  • changeover contact
  • 250 V / 0.5 A
  • 250 V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A
  • max. 1.5 mm2 solid / flexible
  • 83 g
  • 4013364109735
  • 1 pc(s)
  • 953 208
  • Specifications (PDF)
  • More
  • DR M 2P 150 FM
  • 953 209
  • type 3 / class III
  • 120 V (50 / 60 Hz)
  • 150 V (50 / 60 Hz)
  • 150 V
  • 25 A
  • 2 kA
  • 4 kA
  • 4 kV
  • 8 kV
  • ≤ 640 / ≤ 800 V
  • ≤ 25 ns
  • ≤ 100 ns
  • 25 A gG or B 25 A
  • 6 kArms
  •  
  •  
  •  
  •  
  •  
  • -40 °C ... +80 °C
  • green / red
  • 1
  • 0.5 mm2 solid / flexible
  • 4 mm2 solid / 2.5 mm2 flexible
  • 35 mm DIN rails acc. to EN 60715
  • thermoplastic, red, UL 94 V-0
  • indoor installation
  • IP 20
  • 1  module(s), DIN 43880
  • KEMA, VDE, UL, CSA
  • changeover contact
  • 250 V / 0.5 A
  • 250 V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A
  • max. 1.5 mm2 solid / flexible
  • 82 g
  • 4013364109742
  • 1 pc(s)
  • 953 209
  • Specifications (PDF)
  • More
  • DR M 2P 255 FM
  • 953 205
  • type 3 / class III
  • 230 V (50 / 60 Hz)
  • 255 V (50 / 60 Hz)
  • 255 V
  • 25 A
  • 3 kA
  • 5 kA
  • 6 kV
  • 10 kV
  • ≤ 1250 / ≤ 1500 V
  • ≤ 25 ns
  • ≤ 100 ns
  • 25 A gG or B 25 A
  • 6 kArms
  • 335 V / 5 sec. – withstand
  • 440 V / 120 min. – safe failure
  • 335 V / 120 min. – withstand
  • 440 V / 5 sec. – withstand
  • 1200 V + UREF / 200 ms – safe failure
  • -40 °C ... +80 °C
  • green / red
  • 1
  • 0.5 mm2 solid / flexible
  • 4 mm2 solid / 2.5 mm2 flexible
  • 35 mm DIN rails acc. to EN 60715
  • thermoplastic, red, UL 94 V-0
  • indoor installation
  • IP 20
  • 1  module(s), DIN 43880
  • KEMA, VDE, UL, CSA
  • changeover contact
  • 250 V / 0.5 A
  • 250 V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A
  • max. 1.5 mm2 solid / flexible
  • 84 g
  • 4013364108318
  • 1 pc(s)
  • 953 205
  • Specifications (PDF)
  • More

DEHNrail M 2P SN1802

Basic circuit diagram DR M 2P 255 SN1802Dimension drawing DR M 2P 255 SN1802

Two-pole surge arrester consisting of a base part and a plug-in protection module. Usable for systems with a load current up to 32 A.


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)
Max. continuous operating voltage (d.c.) (UC)
Nominal discharge current (8/20 µs) (In)
Total discharge current (8/20 µs) [L+N-PE] (Itotal)
Combination wave (UOC)
Combination wave [L+N-PE] (UOC total)
Voltage protection level [L-N] / [L/N-PE] (UP)
Response time [L-N] (tA)
Response time [L/N-PE] (tA)
Max. mains-side overcurrent protection
Short-circuit withstand capability for mains-side overcurrent protection with 32 A gG (ISCCR)
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic
Temporary overvoltage (TOV) [L/N-PE] (UT) – Characteristic
Temporary overvoltage (TOV) [L/N-PE] (UT) – Characteristic
Temporary overvoltage (TOV) [L+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
Capacity
Weight
GTIN
PU
Part No.
Protection module upon request
  • DR M 2P 255 SN1802
  • 953 228
  • type 3 / class III
  • 230 V (50 / 60 Hz)
  • 255 V (50 / 60 Hz)
  • 255 V
  • 3 kA
  • 5 kA
  • 6 kV
  • 10 kV
  • ≤ 1250 / ≤ 1500 V
  • ≤ 25 ns
  • ≤ 100 ns
  • 32 A gG or B 32 A
  • 6 kArms
  • 335 V / 5 sec. – withstand
  • 440 V / 120 min. – safe failure
  • 335 V / 120 min. – withstand
  • 440 V / 5 sec. – withstand
  • 1200 V + UREF / 200 ms – safe failure
  • -40 °C ... +80 °C
  • green / red
  • 1
  • 0.5 mm2 solid / flexible
  • 4 mm2 solid / 2.5 mm2 flexible
  • 35 mm DIN rails acc. to EN 60715
  • thermoplastic, red, UL 94 V-0
  • indoor installation
  • IP 20
  • 1 module(s), DIN 43880
  • 79 g
  • 4013364158986
  • 1 pc(s)
  • 953 228
  • Specifications (PDF)
  • More

DEHNrail M 2P SN1803FM

Basic circuit diagram DR M 2P 255 SN1803FMDimension drawing DR M 2P 255 SN1803FM

Two-pole surge arrester consisting of a base part and a plug-in protection module; with floating remote signalling contact. Usable for systems with a load current up to 32 A.


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)
Max. continuous operating voltage (d.c.) (UC)
Nominal discharge current (8/20 µs) (In)
Total discharge current (8/20 µs) [L+N-PE] (Itotal)
Combination wave (UOC)
Combination wave [L+N-PE] (UOC total)
Voltage protection level [L-N] / [L/N-PE] (UP)
Response time [L-N] (tA)
Response time [L/N-PE] (tA)
Max. mains-side overcurrent protection
Short-circuit withstand capability for mains-side overcurrent protection with 32 A gG (ISCCR)
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic
Temporary overvoltage (TOV) [L/N-PE] (UT) – Characteristic
Temporary overvoltage (TOV) [L/N-PE] (UT) – Characteristic
Temporary overvoltage (TOV) [L+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
Capacity
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.
Protection module upon request
  • DR M 2P 255 SN1803FM
  • 953 229
  • type 3 / class III
  • 230 V (50 / 60 Hz)
  • 255 V (50 / 60 Hz)
  • 255 V
  • 3 kA
  • 5 kA
  • 6 kV
  • 10 kV
  • ≤ 1250 / ≤ 1500 V
  • ≤ 25 ns
  • ≤ 100 ns
  • 32 A gG or B 32 A
  • 6 kArms
  • 335 V / 5 sec. – withstand
  • 440 V / 120 min. – safe failure
  • 335 V / 120 min. – withstand
  • 440 V / 5 sec. – withstand
  • 1200 V + UREF / 200 ms – safe failure
  • -40 °C ... +80 °C
  • green / red
  • 1
  • 0.5 mm2 solid / flexible
  • 4 mm2 solid / 2.5 mm2 flexible
  • 35 mm DIN rails acc. to EN 60715
  • thermoplastic, red, UL 94 V-0
  • indoor installation
  • IP 20
  • 1 module(s), DIN 43880
  • changeover contact
  • 250 V / 0.5 A
  • 250 V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A
  • max. 1.5 mm2 solid / flexible
  • 83 g
  • 4013364158993
  • 1 pc(s)
  • 953 229
  • Specifications (PDF)
  • More

Accessories

Protection Module for DEHNrail M 2P

Protection module with integrated Y protection circuit.

Show SpecificationsHide Specifications

Specifications

Type
Part No.
Max. continuous operating voltage (a.c.) (UC)
Weight
GTIN
PU