Miniature Signalling Relays

STS Signals have been manufacturing BR930 series relays since the 1960’s and have successfully supplied a wide variety of versions to railway operators throughout the world.

BR930 Range

Originally manufactured as Tyer G4, then as Field & Grant and now as STS Signals, there are over 100 relay designs currently being manufactured meeting the requirements of many railway operators.

STS also has a comprehensive design capability enabling other versions to be developed and manufactured upon request.

Alstom ‘z’ Range

STS Signals are the sole licencee for the comprehensive range of Z-type high reliability signalling relays previously manufactured by GEC, Alstom or General Signals.

Special Designs

In addition to relays, the plug-in format allows the production of modules containing printed circuit boards for specialised applications.

Plug-in Modules

STS can design modules to customer’s requirements or supply empty modules for this purpose.

Repair Service

STS can either manufacture new replacement relays or provide a comprehensive repair service for existing units.