Tunnel construction

Should an accident resulting in a fire occur, essential equipment, such as emergency lighting, ventilation systems and rescue equipment would have to remain available.

The fire protection box WKE 54 from Spelsberg guarantees this with its high protection rating IP 67. The special development for tunnels made of robust thermosetting plastic is protected from penetration of foreign objects and moisture. WKE 54 is also a strong element for safety concepts in train tunnels. Pressure and suction resistance were confirmed after testing in accordance with “Tunnel safety lighting for railway tunnels”.

Intelligent solutions for large tunnel projects

The first inner-city bored tunnel in the Netherlands extends at a depth of 30 metres below Rotterdam. Its 2.4 kilometre-long tubes are part of the “RandstadRail” light rail system.

The WKE 54 fire protection boxes with their especially high protection rating IP 67 assure a reliable flow of electricity at this considerable depth. In addition to maximum functional integrity, the boxes developed especially for tunnels in special thermosetting plastic achieves an insulation retention time of 180 minutes and a functional duration of 120 minutes at a temperature of 400 degrees Celsius.

WKE 54 is also a strong element for safety concepts in train tunnels. Pressure and suction resistance were confirmed after testing in accordance with “Tunnel safety lighting for railway tunnels”.

Safely through the bellow of Berlin

Line U55 passes below the government quarter in central Berlin. 24 hours per day, 365 days per year. The 1.8 kilometre-long tubes set new benchmarks in large-scale design and in technical standards. Fire protection boxes with safeguarded junctions from Spelsberg protect the electrical circuits.

The junction boxes of the special type WKE 300 BVG and WKE 400 BVT developed specifically for the Berlin Traffic Authority are made of an especially durable, halogen-free and self-extinguishing thermosetting plastic. In the case of fire, they assure the function of lighting and the evacuation equipment for at least 30 minutes. In addition, junction boxes of the Abox-i series from Spelsberg protect the electronics from the penetration of liquid and dust. They are highly resistant to fire, impact and break resistant and withstand even extreme temperatures in a range from -35 to 75 degrees Celsius.

WKE 54
Junction box for tunnel
WKE 54

278 x 208 x 107 mm Article number: 86025401

to be used as a junction box with fused branch, Connection box 5-pole 1.5 - 16 mm², Junction box 5-pole 1.5 - 10 mm², Number of conductors per pole:, 20 x 1.5² / 16 x 2.5² / 12 x 4.0² / 8 x 6² / 4 x 10² / 4 x 16², 2 fuse bases D01 max. 16 A, Installed accessories:, 2 cable glands M40, Seal range 16 - 28 mm, 1 cable gland M32, seal range 11 - 21 mm

Cable junction and connection boxes with IP66 /67, certified according to EN 61439-2, with electrical functional integrity E30 – E90 acc. to DIN 4102-12, halogen-free enclosure made from special duroplastic, terminals made of a high-temperature-resistant special ceramic, rapid mounting by external brackets

WKE 204 RK
Cable junction box
WKE 204 RK

115 x 115 x 93 mm Article number: 86220401

Junction box with fused branch, Connection box 3-pole, Junction box 3-pole, Number of conductors per pole 4 x 0.5 - 4mm², Capacity per clamping point 1 x 0.5 - 4mm², Fuse holder (20 x 5mm) max. 6.3A, Accessories supplied:, 3 pc. M25 cable gland (6-15mm), Wall plug set ø 6 mm

Cable junction and connection box with IP66 certified acc. EN 60670, with electrical functional integrity E30 acc. to DIN 4102-12, enclosure and terminal strips made from halogen-free special duroplastic

WKE 403 RK
Cable junction box
WKE 403 RK

200 x 200 x 110 mm Article number: 86240301

Junction box 5-pole, termination capability for each pole 4 x 4 - 16 mm², Accessories supplied:, 2 cable glands M40, seal range 17 - 27 mm, 1 cable gland M32, seal range 17 - 26 mm, Wall plug set ø 6 mm

Cable junction and connection box with IP66 certified acc. EN 60670, with electrical functional integrity E30 acc. to DIN 4102-12, enclosure and terminal strips made from halogen-free special duroplastic

WKE 402 RK
Cable junction box
WKE 402 RK

200 x 200 x 110 mm Article number: 86240201

Junction box 5-pole, termination capability for each pole 2 x 2.5 - 35 mm², Accessories supplied:, Wall plug set ø 6 mm, 2 cable glands M50, seal range 23 - 34 mm

Cable junction and connection box with IP66 certified acc. EN 60670, with electrical functional integrity E30 acc. to DIN 4102-12, enclosure and terminal strips made from halogen-free special duroplastic

WKE 203 RK
Cable junction box
WKE 203 RK

115 x 115 x 93 mm Article number: 86220301

Junction box 3-pole, termination capability for each pole 4 x 0.5 - 4 mm², Accessories supplied:, 3 cable glands M25, seal range 6 - 15 mm, Wall plug set ø 6 mm

Cable junction and connection box with IP66 certified acc. EN 60670, with electrical functional integrity E30 acc. to DIN 4102-12, enclosure and terminal strips made from halogen-free special duroplastic

WKE 202 RK
Cable junction box
WKE 202 RK

115 x 115 x 93 mm Article number: 86220201

Junction box 5-pole, termination capability per pole 2 x 0.5 - 6 mm², Accessories supplied:, 2 cable glands M32, seal range 17 - 26 mm, Wall plug set ø 6 mm

Cable junction and connection box with IP66 certified acc. EN 60670, with electrical functional integrity E30 acc. to DIN 4102-12, enclosure and terminal strips made from halogen-free special duroplastic

WKE 404 RK
Cable junction box
WKE 404 RK

200 x 200 x 110 mm Article number: 86240401

Junction box with fused branch, Junction box 5-pole, Number of conductors per pole 2 x 2.5 - 35mm², Capacity per clamping point 1 x 2.5 - 35mm², Junction box 3-pole, Number of conductors per pole 4 x 1.5 - 10mm², Capacity per clamping point 1 x 1.5 - 10mm², Fuse holder (20 x 5mm) max. 6.3A, Accessories supplied:, Wall plug set ø 6 mm, 2 pc. M50 cable gland (23 - 34mm), 1 pc. M32 cable gland (17 - 26mm)

Cable junction and connection box with IP66 certified acc. EN 60670, with electrical functional integrity E30 acc. to DIN 4102-12, enclosure and terminal strips made from halogen-free special duroplastic

WKE 304 RK
Cable junction box
WKE 304 RK

160 x 160 x 110 mm Article number: 86230401

Junction box with fused branch, Connection box 5-pole, Junction box 3-pole, Number of conductors per pole 4 x 1.5 - 10mm², Capacity per clamping point 1 x 1.5 - 10mm², Fuse holder (20 x 5mm) max. 6.3A, Accessories supplied:, 2 pc. M40 cable gland (17 - 27mm), 1 pc. M25 cable gland (6 - 15mm), Wall plug set ø 6 mm

Cable junction and connection box with IP66 certified acc. EN 60670, with electrical functional integrity E30 acc. to DIN 4102-12, enclosure and terminal strips made from halogen-free special duroplastic

WKE 303 RK
Cable junction box
WKE 303 RK

160 x 160 x 110 mm Article number: 86230301

Junction box 5-pole, termination capability for each pole 4 x 2.5 - 10 mm², Accessories supplied:, 3 cable glands M32, seal range 17 - 26 mm, Wall plug set ø 6 mm

Cable junction and connection box with IP66 certified acc. EN 60670, with electrical functional integrity E30 acc. to DIN 4102-12, enclosure and terminal strips made from halogen-free special duroplastic

WKE 302 RK
Cable junction box
WKE 302 RK

160 x 160 x 110 mm Article number: 86230201

Junction box 5-pole, termination capability for each pole 4 x 4 - 16 mm², Accessories supplied:, 2 cable glands M40, seal range 17 - 27 mm, Wall plug set ø 6 mm

Cable junction and connection box with IP66 certified acc. EN 60670, with electrical functional integrity E30 acc. to DIN 4102-12, enclosure and terminal strips made from halogen-free special duroplastic

WKE 405 LSA
Cable junction box
WKE 405 LSA

200 x 200 x 110 mm Article number: 86240501

Junction box equipped with two LSA-Plus connector blocks, respectively for 10 double wires (2 x 10 DA), the LSA-Plus contacts are suitable for a solid conductor with 0.4 to 0.8 mm diameter and an outside insulation diameter of 0.7 to 1.6 mm. Accessories supplied: Wall plug set ø 6 mm, 4 cable glands M25, seal range 9 - 19 mm

Tested system: WKE 405 - cable junction boxes with time-saving (solder, screw and stripping free) connection technology for cables with functional integrity according to DIN 4102 Part 12 - tested by the MPA Dresden

WKE 2 - 5 x 6²
Cable junction box
WKE 2 - 5 x 6²

100 x 100 x 50 mm Article number: 86050201

Connection box 5-pole 0.5 - 6 mm², Junction box 5-pole 0.5 - 1.5 mm², Number of conductors per pole:, 8 x 0.5² / 4 x 0.75² / 6 x 1² / 6 x 1.5² / 2 x 2.5² / 2 x 4² / 2 x 6², Accessories supplied:, Drilling template, D6 wall + ceiling attachment set, 4 IP54 attachment bushes M25, seal range 9 - 18.5 mm, 1 IP54 sealing plug M25, seal range 9 - 18.5 mm

Cable junction and connection box with IP54 / IP65 certified acc. EN 60670, with electrical functional integrity E30 – E90 acc. to DIN 4102-12, halogen-free enclosure made from special duroplastic, terminals made from high temperature-proof special ceramics, rapid mounting thanks to external fixing brackets and wall + ceiling fastening parts kit D6

WKE 4 - 5 x 16²
Cable junction box
WKE 4 - 5 x 16²

165 x 165 x 76 mm Article number: 86050401

Connection box 5-pole 1.5 - 16 mm², Junction box 5-pole 1.5 - 6 mm², Number of conductors per pole:, 10 x 1.5² / 8 x 2.5² / 4 x 4² / 4 x 6² / 2 x 10² / 2 x 16², Accessories supplied:, 4 IP54 attachment bushes M40, seal range 17 - 30 mm, 1 IP54 sealing plug M40, seal range 17 - 30 mm, Drilling template, D6 wall + ceiling attachment set

Cable junction and connection box with IP54 / IP65 certified acc. EN 60670, with electrical functional integrity E30 – E90 acc. to DIN 4102-12, halogen-free enclosure made from special duroplastic, terminals made from high temperature-proof special ceramics, rapid mounting thanks to external fixing brackets and wall + ceiling fastening parts kit D6

WKE 3 - 5 x 10²
Cable junction box
WKE 3 - 5 x 10²

115 x 115 x 66 mm Article number: 86050301

Connection box 5-pole 1 - 10 mm², Junction box 5-pole 1 - 4 mm², Number of conductors per pole:, 10 x 1² / 8 x 1.5² / 6 x 2.5² / 4 x 4² / 2 x 6² / 2 x 10², Accessories supplied:, Drilling template, D6 wall + ceiling attachment set, 4 IP54 attachment bushes M32, seal range 13 - 23 mm, 1 IP54 sealing plug M32, seal range 13 - 23 mm, Sealing set

Cable junction and connection box with IP54 / IP65 certified acc. EN 60670, with electrical functional integrity E30 – E90 acc. to DIN 4102-12, halogen-free enclosure made from special duroplastic, terminals made from high temperature-proof special ceramics, rapid mounting thanks to external fixing brackets and wall + ceiling fastening parts kit D6

WKE 2 - 3 x 10²
Cable junction box
WKE 2 - 3 x 10²

100 x 100 x 50 mm Article number: 86051201

Connection box 3-pole 1 - 10 mm², Junction box 3-pole 1 - 4 mm², Number of conductors per pole:, 10 x 1² / 8 x 1.5² / 6 x 2.5² / 4 x 4² / 2 x 6² / 2 x 10², Accessories supplied:, Drilling template, D6 wall + ceiling attachment set, 4 IP54 attachment bushes M25, seal range 9 - 18.5 mm, 1 IP54 sealing plug M25, seal range 9 - 18.5 mm

Cable junction and connection box with IP54 / IP65 certified acc. EN 60670, with electrical functional integrity E30 – E90 acc. to DIN 4102-12, halogen-free enclosure made from special duroplastic, terminals made from high temperature-proof special ceramics, rapid mounting thanks to external fixing brackets and wall + ceiling fastening parts kit D6

WKE 5 - 15 x 6²
Cable junction box
WKE 5 - 15 x 6²

171 x 256 x 106 mm Article number: 86050501

Connection box 15-pole 0.5 - 6 mm², Number of conductors per pole:, 8 x 0.5² / 4 x 0.75² / 6 x 1² / 6 x 1.5² / 2 x 2.5² / 2 x 4² / 2 x 6², Accessories supplied:, Drilling template, D6 wall + ceiling attachment set, 6 IP54 attachment bushes M20, seal range 8 - 13 mm, 2 IP54 attachment busches M40, seal range 17 - 30 mm, 2 IP54 double end connectors M40, seal range 17 - 30 mm, 1 IP54 sealing plug M20, seal range 8 - 13.5 mm, 1 IP54 sealing plug M40, seal range 17 - 30 mm

Junction box with IP54 / IP65 certified as per EN 60670, with electrical functional integrity E30 – E90 acc. to DIN 4102-12, halogen-free enclosure made from special duroplastic, terminals made from high temperature-proof special ceramics, rapid mounting thanks to external fixing brackets and wall + ceiling fastening parts kit D6

WKE 5 - 24 x 6²
Cable junction box
WKE 5 - 24 x 6²

171 x 256 x 106 mm Article number: 86050524

Connection box 2 x 12-pole 0.5 - 6 mm², Number of conductors per pole:, 8 x 0.5² / 4 x 0.75² / 6 x 1² / 6 x 1.5² / 2 x 2.5² / 2 x 4² / 2 x 6², Accessories supplied:, 6 IP54 attachment bushes M20, seal range 8 - 13 mm, 2 IP54 attachment busches M40, seal range 17 - 30 mm, 2 IP54 double end connectors M40, seal range 17 - 30 mm, 1 IP54 sealing plug M20, seal range 8 - 13.5 mm, 1 IP54 sealing plug M40, seal range 17 - 30 mm, Drilling template, D6 wall + ceiling attachment set

Junction box with IP54 / IP65 certified as per EN 60670, with electrical functional integrity E30 – E90 acc. to DIN 4102-12, halogen-free enclosure made from special duroplastic, terminals made from high temperature-proof special ceramics, rapid mounting thanks to external fixing brackets and wall + ceiling fastening parts kit D6

WKE 5 - 20 x 6²
Cable junction box
WKE 5 - 20 x 6²

171 x 256 x 106 mm Article number: 86050520

Connection box 2 x 10-pole 0.5 - 6 mm², Number of conductors per pole:, 8 x 0.5² / 4 x 0.75² / 6 x 1² / 6 x 1.5² / 2 x 2.5² / 2 x 4² / 2 x 6², Accessories supplied:, 6 IP54 attachment bushes M20, seal range 8 - 13 mm, 2 IP54 attachment bushes M40, seal range 17 - 30 mm, 2 IP54 double end connectors M40, seal range 17 - 30 mm, 1 IP54 sealing plug M20, seal range 8 - 13.5 mm, 1 IP54 sealing plug M40, seal range 17 - 30 mm, Drilling template, D6 wall + ceiling attachment set

Junction box with IP54 / IP65 certified as per EN 60670, with electrical functional integrity E30 – E90 acc. to DIN 4102-12, halogen-free enclosure made from special duroplastic, terminals made from high temperature-proof special ceramics, rapid mounting thanks to external fixing brackets and wall + ceiling fastening parts kit D6

WKE 4 - 8 x 6²
Cable junction box
WKE 4 - 8 x 6²

165 x 165 x 76 mm Article number: 86051401

Connection box 8-pole 0.5 - 6 mm², Number of conductors per pole:, 8 x 0.5² / 4 x 0.75² / 6 x 1² / 6 x 1.5² / 2 x 2.5² / 2 x 4² / 2 x 6², Accessories supplied:, 2 IP54 attachment bushes M40, seal range 17 - 30 mm, 2 IP54 double end connectors M40, seal range 8 - 13 mm, 1 IP54 sealing plug M20, seal range 8 - 13.5 mm, 1 IP54 sealing plug M40, seal range 17 - 30 mm, Drilling template, D6 wall + ceiling attachment set

Junction box with IP54 / IP65 certified as per EN 60670, with electrical functional integrity E30 – E90 acc. to DIN 4102-12, halogen-free enclosure made from special duroplastic, terminals made from high temperature-proof special ceramics, rapid mounting thanks to external fixing brackets and wall + ceiling fastening parts kit D6

WKE AK 28
Small scale distributor
WKE AK 28

400 x 690 x 230 mm Article number: 86542801

stop left, 2 row, 28 distribution units, Ui=400V, 150 mm rail spacing, screwless PE/N terminal rails each with 3 screwable clamping points 1.5 - 4 mm², 21 / 2 x 14 screwless clamping points 1.5 mm² - 4 mm², elastic entries on top, with cable covering, masking and labelling strips, additional double-membrane seals and other accessories

Fire protection small-scale distributors, VDE certificated compliant with DIN EN 61 439-2, VDE tested and certified under specific operating conditions to be compliant with DIN EN 61 439-2, tested compliant with DIN 4102-2 by MPA Dresden, F90 for internal flame impingement according to DIN 4102 based on I90, F90 for external flame impingement according to DIN 4102 based on E90, can be individually equipped with type-tested operating materials

WKE AK 42
Small scale distributor
WKE AK 42

400 x 840 x 230 mm Article number: 86544201

stop left, 3 row, 42 distribution units, Ui=400V, 150 mm rail spacing, screwless PE/N terminal rails each with 6 screwable clamping points, 2.5 - 16 mm², 21 / 2 x 14 screwless clamping points 1.5 mm² - 4 mm², elastic entries on top, with cable covering, masking and labelling strips, additional double-membrane seals and other accessories

Fire protection small-scale distributors, VDE certificated compliant with DIN EN 61 439-2, VDE tested and certified under specific operating conditions to be compliant with DIN EN 61 439-2, tested compliant with DIN 4102-2 by MPA Dresden, F90 for internal flame impingement according to DIN 4102 based on I90, F90 for external flame impingement according to DIN 4102 based on E90, can be individually equipped with type-tested operating materials

WKE AK 14
Small scale distributor
WKE AK 14

400 x 540 x 230 mm Article number: 86541401

stop left, 1-row, 14 distribution units, Ui=400V, screwless PE/N terminal rails each with 3 screwable clamping points, 2.5 - 16 mm², 14 screwless terminal points, 1.5 - 4 mm², elastic entries on top, with cable covering, masking and labelling strips, additional double-membrane seals and other accessories

Fire protection small-scale distributors, VDE certificated compliant with DIN EN 61 439-2, VDE tested and certified under specific operating conditions to be compliant with DIN EN 61 439-2, tested compliant with DIN 4102-2 by MPA Dresden, F90 for internal flame impingement according to DIN 4102 based on I90, F90 for external flame impingement according to DIN 4102 based on E90, can be individually equipped with type-tested operating materials

WKE AK 70
Small scale distributor
WKE AK 70

400 x 1140 x 230 mm Article number: 86547001

stop left, 5 row, 70 distribution units, Ui=400V, 150 mm rail spacing, screwless PE/N terminal rails each with 6 screwable clamping points, 2.5 - 16 mm², 21 / 2 x 14 screwless clamping points 1.5 mm² - 4 mm², elastic entries on top, additional double-membrane seals and other accessories

Fire protection small-scale distributors, VDE certificated compliant with DIN EN 61 439-2, VDE tested and certified under specific operating conditions to be compliant with DIN EN 61 439-2, tested compliant with DIN 4102-2 by MPA Dresden, F90 for internal flame impingement according to DIN 4102 based on I90, F90 for external flame impingement according to DIN 4102 based on E90, can be individually equipped with type-tested operating materials

WKE AK 56
Small scale distributor
WKE AK 56

400 x 990 x 230 mm Article number: 86545601

stop left, 4 row, 56 distribution units, Ui=400V, 150 mm rail spacing, screwless PE/N terminal rails each with 6 screwable clamping points, 2.5 - 16 mm², 21 / 2 x 14 screwless clamping points 1.5 mm² - 4 mm², elastic entries on top, additional double-membrane seals and other accessories

Fire protection small-scale distributors, VDE certificated compliant with DIN EN 61 439-2, VDE tested and certified under specific operating conditions to be compliant with DIN EN 61 439-2, tested compliant with DIN 4102-2 by MPA Dresden, F90 for internal flame impingement according to DIN 4102 based on I90, F90 for external flame impingement according to DIN 4102 based on E90, can be individually equipped with type-tested operating materials

WKE AK 42 R
Small scale distributor
WKE AK 42 R

400 x 840 x 230 mm Article number: 86554201

Stop right, 3 row, 42 distribution units, Ui=400V, 150 mm rail spacing, screwless PE/N terminal rails each with 6 screwable clamping points, 2.5 - 16 mm², 21 / 2 x 14 screwless clamping points 1.5 mm² - 4 mm², elastic entries on top, with cable covering, masking and labelling strips, additional double-membrane seals and other accessories

Fire protection small-scale distributors, VDE certificated compliant with DIN EN 61 439-2, VDE tested and certified under specific operating conditions to be compliant with DIN EN 61 439-2, tested compliant with DIN 4102-2 by MPA Dresden, F90 for internal flame impingement according to DIN 4102 based on I90, F90 for external flame impingement according to DIN 4102 based on E90, can be individually equipped with type-tested operating materials

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Spelsberg: Solutions for tunnel construction

Tunnels are fascinating structures. They shorten routes, pass under seas and bore through mountain massifs. Tunnels facilitate the transport of goods and connect people. In this complex microcosm, the requirements on the technical equipment are especially high. Safety has the highest priority.

Spelsberg products connect the electrical tunnels that are drawn through the tunnel. They provide a safe flow of electricity, even in case of danger. Junction and connection boxes with functional integrity from Spelsberg are part of the safety concept of numerous tunnel systems around the world. The electrical installation that is used must also ensure that emergency lighting, alarm systems, ventilation and extinguishing systems remain available for as long as possible, even in case of fire. Components from Spelsberg with functional integrity in classes E30-E90 in accordance with DIN 4102 Part 12 assure effective protection.

This is essential, because the daily stress on tunnel infrastructure is enormous. Pressure waves, corrosion and dirt subject the electrical installation to a constant endurance test. Optimal installation material must be installed. With their robust design, Spelsberg products for tunnels can withstand extreme conditions.

Spelsberg: The expert for tunnel construction
  • Electrical functional integrity in case of fires in classes E30 to E90 acc.to DIN 4102 part 12
  • Robust installation material in industrial quality
  • Weather-resistant
  • Impact resistant
  • Protection rating up to IP 68
  • Pressure and suction resistance tested in accordance with “Tunnel safety lighting for railway tunnels”
  • Tested products with VDE seal, general building supervisory approvals (AbZ) or general supervisory test certificates (AbP)