General information

  • Address: J.W. Lucasweg 35, 2031 BE Haarlem, The Netherlands
  • Area: 40,000 sq.m. gross surface
  • Power capacity: 15 MW (expansion to 60 MW)
  • Quality level: Tier III
The EvoSwitch data center is one of the largest and most reliable data centers in Europe. The use of advanced premium infrastructure technologies guarantees customers a maximum uptime of 99.999% SLA. The data center is connected to Europe's largest AMS-IX and NL-IX traffic exchange points. The datacenter is a 3-storey purpose-built concrete and steel facility.

Facility details

Power supply system

  • Power capacity - 25 MW (expansion to 60 MW)
  • Generators: 25 Megawatts
  • Power redundancy options N+1 and 2N
  • 8 power transformers with 2500 kVA
  • 16 automatic DGUs x 1540 kVA (N+2)
  • 1.2 PUE (power usage effectiveness)
  • 48-hour fuel reserve
  • 99.99999% uptime since 2007


  • Cooling system with 2N redundancy
  • Using freecooling
  • Hot and cold corridors
  • Temperature 24°C (± 5°C)
  • Relative humidity 50% (± 25%)

Fire Extinguishing

  • High-sensitivity smoke detection system VESDA (Very Early Smoke Detection System)
  • FirePro® / IG55 gas fire extinguishing system
  • Portable gas and foam extinguishers
  • Fire resistance of walls 1 hour


  • On-Site Security Personnel 24/7
  • 3-meter-long electric fence across the perimeter of the data center building.
  • Guarded access to the territory, pass control
  • Complete monitoring of the entire territory of the facility with video cameras with motion sensors
  • Entrance to the guarded reception area via gateway booths equipped with ID card readers, access cards and biometric data (palm print scanning).
  • Entrance to the machine rooms is via access cards and biometric data reading (palm print and retina scanning).
  • Corridors, entrance doors and other critical infrastructure are controlled by the CCTV system.


  • ISO 27001:2005 (Information Security Management System Certification (equivalent to NEN 7510))
  • ISO 9001:2008 (Quality Management System Certification)
  • ISAE3402 (SAS 70) (audit opinion on financial and internal control)
  • NEN 3140; 1010; 50110 (low voltage protection)
  • Borg Class 4 (construction and electronic network security)
  • AMS-IX Certified Data Center for AMS1
  • U.S. Green building council LEED Gold