SMC's pre-wired connector auto switches are available in 3- or 4-pin 8mm style, or 4-pin 12mm style. 3 standard wire lengths are also available: 0.5m (S), 1.0m (M) and 3.0m (L). With using the pre-wired connector switch, the need for minimum order quantities for special auto switches with connectors is eliminated, and wiring with using standard connectors is simplified.