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Castell Safety Intl Ltd.
(U.K.)
Company Background

Castell Safety International has been at the forefront of trapped key interlocking since 1922. The founder , James Harry Castell, designed the first interlocking systems to protect the people and assets during the electrification of London.

The Interlocking System are designed to be robust, durable and are proven in all types of operating environments that meet the demands of the harsh locations our customers operate in.  

All Castell products conform to European Safety Standards and high quality innovative products ISO 9001: 2008.

If you require any further information on Castell products and Interlock proposal, please feel free to contact us.

Products Range

  • Switchgear Interlock, Type FS, Mini FS
  • Powersafe Switches, Type KS20
  • Bolt Interlocks, Type K-Bolt, KL Bolt
  • Solenoid Controlled Switch Interlocks, Type KSS20
  • Key Exchange Units, Type X, Y and Z
  • Door Access Locks, Type MAI, MAIE, AI, AIE, D
  • Lever Operated Valve Interlocks, Type MBV
  • MultiClasp
  • Brass & Stainless Steel Padlocks
  • Valve Covers
Typical Application

  • Switchgear Interlocks
  • Machine Guarding
  • Access Interlocks
  • Power Isolation
  • Lock Out, Tag Out