Which enclosures meet fire safety standards for use in tunnels?

Yes. Our WKE Rapid-Box range of cable junctions and connection housings is made for tunnel applications and meets key fire safety standards, particularly DIN 4102 part 12. Our work with customers in the railway sector has enabled us to understand and align with this pivotal safety standard in a meaningful way.

The WKE Rapid-Box has been precision engineered around fire performance:

• Temperature-resistant ceramic terminals

• Uncut conductors of up to 50 mm² (Cu)

• Safe junction made with a 2.5 mm² conductor or via a CEE socket (3-pin or 5-pin) in the housing cover

• Certified according to EN 61439:2011

• Intrinsic fire resistance in the passage for 30 minutes

• A minimum of IP66 protection against challenging conditions

Full details of the range are on our tunnel applications page: https://www.spelsberg.co.uk/fire-protection-cable-boxes/tunnel-applications/

Our case study on the ‘Kanzlerbahn’ project on Berlin Underground line 55 shows how these enclosures provided reliable fire protection under rigorous conditions: https://www.spelsberg.co.uk/solutions/electrical-functional-integrity/case-studies/berlin-underground-line-55/

Safety in the event of a fire depends on enabling critical systems to continue operating. That means enclosures that can withstand high temperatures without allowing the fire to spread, while maintaining the integrity of the electrical components inside. Designed this way, they help to ensure that essential services remain operational during a fire, securing evacuation routes and emergency responses.