Saia-Burgess Contact Block for Use with Circular indicator 350872, Circular Latching 350822, Circular Momentary 350816,

Self cleaning snap action with dovetailed bodies that slide fit on to the actuators and are locked in place with a quarter turn of the central locking pin on the actuator
Contact rating: 5A @ 250V a.c. (p.f. = 0.7), 4A @ 24V d.c.
Contact resistance: gold < 15mΩ, silver < 8mΩ
Mechanical life: 2 x 10⁵ operations
Electrical life: 10⁴ operations at 250V a.c. (cos Ø = 0.7)
For low current applications, 5 μm gold-plated silver contacts are available
Connections are suitable for either soldering or 2.8 x 0.5mm (0.11in.) Faston connectors

Illuminated switches, standard

Range of illuminated panel-mounted switches available in square, rectangular and circular momentary or latching versions. Square or rectangular lamp terminals are also available. Suitable lamps: T5·5, see the Optoelectronics / Indicators section.