A:Answer Hello, per the installation Instructions, https://shorturl.at/I3L5l, A 4-wire or 3-wire, single-phase, 120/240 V, 60 Hz, AC only electrical supply on a separate, 40 A circuit breaker is required for both 30" (76.2 cm) and 36" (91.4 cm) models. If a fused system is used, fuse both sides of the line. Thank you for your inquiry about our KitchenAid appliances.