DEHNrail modular, multipole

Pluggable four-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.
  • Four-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
  • Easy replacement of protection modules without tools due to module locking system with module release button
  • Nominal load currents up to 25 A
  • Vibration and shock-tested in accordance with EN 60068-2

Version

DEHNrail M 4P ...: Four-pole surge arrester consisting of a base part and a plug-in protection module
DEHNrail M 4P ... FM: With remote signalling contact for monitoring device (floating changeover contact)

Details

The modular four-pole DEHNrail M 4P ... (FM) surge arresters are specifically developed for protecting three-phase industrial electronics terminal equipment. Adapted to this kind of environment, the arresters with the Red/Line design are suitable for 35 mm DIN rails. The low voltage protection level and the comprehensive protection against common-mode and differential-mode interference are characteristic of DEHNrail M 4P ... (FM). To provide optimal low voltage protection levels for the terminal equipment to be protected, the device features input and output terminals for series connection. DEHNrail M 4P ... (FM) devices ideally adapt to the cable run upstream of the terminal equipment. Therefore, no additional terminal blocks for outgoing cables are required. The compact design incorporates the tried and tested disconnector. It disconnects an overloaded arrester circuit without interrupting the supply circuit.

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

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

In the event of the protective circuit, which is rated for high load currents up to 25 A, being overloaded, the protection modules can be easily replaced without tools by simply pressing the module release button.

Apart from the standard visual indication with green and red indicator flags, DEHNrail M 4P ... 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

DEHN rail M 4P ... (FM)

+
DEHNrail M 4P SN1872FM

DEHN rail M 4P ... (FM)

Basic circuit diagram DR M 4P ... FM
Dimension drawing DR M 4P ... FM

Four-pole surge arrester consisting of a base part and a plug-in protection module for 230 / 400 V systems; FM version 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)
Nominal load current (a.c.) (IL)
Nominal discharge current (8/20 µs) (In)
Total discharge current (8/20 µs) [L1+L2+L3+N-PE] (Itotal)
Combination wave (UOC)
Combination wave [L1+L2+L3+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 gL/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) [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 4P 255
  • 953 400
  • type 3 / class III
  • 230 / 400 V (50 / 60 Hz)
  • 255 / 440 V (50 / 60 Hz)
  • 25 A
  • 3 kA
  • 8 kA
  • 6 kV
  • 16 kV
  • ≤ 1000 / ≤ 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 / 200 ms – safe failure
  • -40 °C ... +80 °C
  • green / red
  • 1
  • 0.5 mm2 solid / flexible
  • 4 mm2 stranded / 2.5 mm2 flexible
  • 35 mm DIN rails acc. to EN 60715
  • thermoplastic, red, UL 94 V-0
  • indoor installation
  • IP 20
  • 2 modules, DIN 43880
  • KEMA, VDE
  •  
  •  
  •  
  •  
  • 147 g
  • 4013364115767
  • 1 pc(s)
  • 953 400
  • Specifications (PDF)
  • More
  • DR M 4P 255 FM
  • 953 405
  • type 3 / class III
  • 230 / 400 V (50 / 60 Hz)
  • 255 / 440 V (50 / 60 Hz)
  • 25 A
  • 3 kA
  • 8 kA
  • 6 kV
  • 16 kV
  • ≤ 1000 / ≤ 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 / 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
  • 2 modules, DIN 43880
  • KEMA, VDE
  • 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
  • 151 g
  • 4013364115774
  • 1 pc(s)
  • 953 405
  • Specifications (PDF)
  • More

+ DEHNrail M 4P SN1872FM

Basic circuit diagram DR M 4P 255 SN1872 FM
Dimension drawing DR M 4P 255 SN1872 FM

Four-pole surge arrester consisting of a base part and a plug-in protection module; with floating remote signalling contact. Usable for systems with a fusing 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)
Nominal discharge current (8/20 µs) (In)
Total discharge current (8/20 µs) [L1+L2+L3+N-PE] (Itotal)
Combination wave (UOC)
Combination wave [L1+L2+L3+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 gL/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) [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.
  • DR M 4P 255 SN1872 FM
  • 953 406
  • type 3 / class III
  • 230 / 400 V (50 / 60 Hz)
  • 255 / 440 V (50 / 60 Hz)
  • 3 kA
  • 8 kA
  • 6 kV
  • 16 kV
  • ≤ 1000 / ≤ 1500 V
  • ≤ 25 ns
  • ≤ 100 ns
  • 32 A gG oder 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 / 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
  • 2 modules, 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
  • 151 g
  • 4013364353060
  • 1 pc(s)
  • 953 406
  • Specifications (PDF)
  • More
    • Further Pictures
      Basic circuit diagram DR M 4P 255 SN1872 FM
      open PDF
      Dimension drawing DR M 4P 255 SN1872 FM
      open PDF
      Further Information
      Product Specifications (Text)

      Back

      Four-pole DEHNrail DR M 4P 255 SN1872 FM surge arrester
Modular and pluggable four-pole surge arrester for protecting 
terminal devices of industrial electronics equipment, width: 2 modules
With remote signalling contact
Type 3 SPD according to EN 61643-11
Max. continuous operating voltage: 255/440 V a.c.
Total discharge current: 8 kA
Voltage protection level (L/N): < = 1 kV
Max. mains-side overcurrent protection: 32 A gG or B 32 A 
Energy-coordinated according to IEC 62305-4 with arresters 
of the Red/Line series
Fault indication

      delivery and installation.

      Brand: DEHN
      Type: DR M 4P 255 SN1872 FM
      Part No.: 953 406

      or equivalent.
      Installation Instructions
      Certificates
      CE_DR_M_4P_255_SN1872_FM
      CAD-Data for registered Users
      953406.stp
      953406.igs
      953406.jt
      953406.dwg
      953406m_D.dxf

Accessories

DEHNpanel

Visual remote indicator for (multiple) surge protective devices (SPDs)

Show SpecificationsHide Specifications

Specifications

Type
Part No.
Operating state/fault indication
Enclosure material
Weight
GTIN
PU
  • DPAN L
  • 910 200
  • green LED (flashing) / red LED (flashing)
  • noryl
  • 140 g
  • 4013364144019
  • 1 pc(s)
  • Specifications (PDF)
  • More
    • Further Pictures
      open PDF
      Further Information
      Product Specifications (Text)

      Back

      DPAN L visual remote indication for surge protective devices
Visual remote indicator with current-saving LEDs for surge protective devices (SPDs) 
With remote signalling contact
Also suited for alarm signalling of other devices with floating changeover contact
For installation in switchgear cabinet doors.
Power supply: 2x 1.5 V AA batteries
Degree of protection: IP 40
Mounting dimensions: 92 x 45 mm
Dimensions: 96 x 48 x 75 mm

      delivery and installation.

      Brand: DEHN
      Type: DPAN L
      Part No.: 910 200

      or equivalent.
      Installation Instructions
      Certificates
      CE_DEHNpanel

Protection Module for DEHNrail M 4P

Four-pole protection module with integrated protective circuit.

Show SpecificationsHide Specifications

Specifications

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