Sommer cable sc nyfaz installation cable sommer cable 420 0250 sw the sommer cable 420 0250 sw is a sc nyfaz installation cable that can be used for interior wiring of all imaginable types of electrical units the cable can be found in audio modules such as speakers effect units in transmission technology game machines fast wiring of prototypes and new developments etcwherever flexibility is not so important but a low price is you can be sure that sommer cable can supply a dependable