Already have an account? Log in here...   |   Outside of U.K? Click here...

LUL Section 12 products

Following the London Kings Cross fire of 1987, the resulting Fennell enquiry prompted the introduction of additional fire precautions for ‘Sub-surface Railway Stations’. These additional requirements were introduced under section 12 of the Fire Precautions Act 1971, and since then have been known simply as Section 12 regs. These regulations have been revoked and partly replaced with:- ‘The Fire Precautions (Sub-surface Railway Stations) (England) Regulations 2009.


With this London Underground (LU) isolation range, the overall consideration has been to meet, and where possible exceed, the Section 12 requirements. This has been achieved by the careful selection of individual component materials and the use of only recognised and approved paint finishes. This range of enclosed Switch Disconnectors have all been designed for the isolation and distribution of electrical supplies, for use on sub-surface and surface railway station installations. They meet the stringent requirements of LUL-TFL fire regulations and international low voltage switchgear standards.


Craig & Derricott offer a variety of switch disconnectors (25A - 400A) in die-cast aluminium, sheet steel or stainless steel, all specifically designed to meet the underground regulations in terms of materials and paint finishes (LU Approved paint).


Product Registration Certificates:-

  • Reg. No. 638 - Covers 25A enclosed switch disconnectors in IP65 Die-Cast Aluminium and IP65 Stainless Steel enclosures
  • Reg. No. 639 - Covers 40A enclosed switch disconnectors in IP65 Die-Cast Aluminium and IP65 Stainless Steel enclosures
  • Reg. No 3062 - Covers 32A - 630A enclosed switch disconnectors and fuse combination units in IP65 Sheet Steel enclosures
  • Reg. No. 1749 - Cover Emergency Power Off (EPO) pushbutton assembly in surface mounting Die-Cast Aluminium enclosure

Die Cast Aluminium

London Underground approved for use isolators available in 25A & 40A ranging from 2P to 6P. Designed in Die-Cast Aluminium (LM6) enclosures finished in LU S1085 Compliant Paint Finish. Available in either Light Grey (RAL 7035) or Traffic Red (RAL 3020).   Sealed to IP65, these switch-disconnectors are supplied with pre-finished steel mounting brackets for ease of installation. Each unit ...

Stainless Steel

London Underground approved for use lid mounted switch-disconnectors designed to provide the user with an assembly that can be installed for indoor or outdoor use, in the harshest of environments.   Available in 25A & 40A ranging from 2P to 6P, these isolators are supplied in 18 gauge stainless steel Grade 304 enclosures in a natural brushed finish with mounting brackets for easy ...

Sheet Steel

London Underground approved for use switch-disconnectors and fuse combination units ranging from 32A - 630A. Sealing up to IP65, these units are supplied in LU S1085 paint finished Sheet Steel enclosures with removable top & bottom gland plates. Supplied with padlockable in both ‘Off’ & ‘On’ metal handle. Optional Castell Locks are available on request. Available in ...

F400 Fire Rated

The F400 Fire Rated product range is designed specifically for London Underground installations where the supply must be maintained for 2 hours at 400°C.