The SC570/WH/MD/MULTI/G3 Grade 3 contacts are suitable for a wide range of applications and can be used in Ungraded, Grade 1, Grade 2 and Grade 3 systems. These contacts are required to have a mechanical tamper and/or be potted/sealed. End of Line (EOL) resistors are also an option. They should also detect or be immune to rogue magnets. A range of contacts in plastic and aluminium which can be surface mounted and which will suit most domestic and commercial installations.
