Restaurant & Commercial Kitchen Electrician in San Jose
Hood Interlocks. Equipment Circuits. Pass Your Final.

A restaurant build-out covers far more electrical scope than most owners expect, and almost all of it is on dedicated circuits. The core list includes an NEC 220 load calculation for the kitchen equipment and a panel or sub-panel sized to it, 208V three-phase circuits for ranges, ovens, fryers, kettles, and other high-draw cooking equipment sized to each unit's nameplate, dedicated feeds and condensing-unit disconnects for every walk-in cooler and freezer, dedicated circuits for the dishwasher and its booster heater, the Type I exhaust hood fire-suppression interlock with shunt-trip and make-up air control, GFCI protection at all prep, bar, and wet-location receptacles per NEC 210.8(B), exit signs and emergency egress lighting with battery backup per the California Building Code, conduit rough-in for POS and low-voltage systems, and panel labeling and circuit testing before the final inspection. Cali Rollin Electric handles the full scope as the licensed C-10 contractor and sequences it to your construction and opening schedule.

The Type I hood interlock is the single most common reason a commercial kitchen fails its final inspection, so it gets done carefully. Under NFPA 96 and the fire code, activation of the hood's fire-suppression system (the Ansul or equivalent wet-chemical system) must automatically shut off electrical power to all cooking appliances under the hood. We wire this with a shunt-trip breaker or contactor that is triggered by the suppression system's micro-switch, so a suppression discharge de-energizes the equipment instantly. We also coordinate the make-up air and exhaust fan controls so the hood ventilation interlocks correctly with the cooking line. At final, the inspector will physically test the interlock — we test it ourselves before that inspection so there are no surprises on inspection day.

Most commercial cooking equipment runs on 208V, and the larger pieces are three-phase, so a building with only single-phase service sometimes needs a service change before the kitchen can be wired. Every major appliance gets its own dedicated circuit sized to the manufacturer's nameplate rating — we do not assume a load from the appliance type, because two ranges from different manufacturers can draw very differently. We pull the equipment cut sheets, confirm each nameplate, size the conductor and breaker per NEC Article 210 and 220, and provide the correct receptacle or hard-wired connection with a disconnect where required. Getting this right at rough-in matters because the equipment is usually delivered late in the project and the circuits have to be ready and correct when it arrives.

Yes — passing the final the first time is the whole point, because every failed inspection pushes your opening date and you are usually already paying rent. On the electrical side the items that most often hold a final are the hood suppression interlock, GFCI protection at the required receptacles, emergency egress and exit lighting, and a properly labeled panel schedule. We build to those requirements from rough-in forward and self-test the hood interlock and egress lighting before the inspection. We coordinate the electrical final with the building department and work alongside your general contractor and the health department's plan so the trades' inspections line up instead of bouncing the project back and forth.

Yes. Restaurant timelines are unforgiving — the opening date is often set before construction finishes, and equipment frequently arrives late. We sequence electrical rough-in to the general contractor's schedule so we are not the trade holding up drywall, and we schedule trim-out and final connections around your target opening, including nights and weekends when that is what it takes to hit the date. If a piece of equipment shows up late, we make the connection when it lands rather than forcing you to wait for the next available slot.

Restaurant electrical is priced off the equipment and the build, not a flat rate, because two kitchens of the same square footage can differ by tens of thousands of dollars depending on what is in them. The main cost drivers are the number of 208V three-phase equipment circuits, the size and suppression complexity of the exhaust hood, the number of walk-ins and refrigeration units each needing dedicated feeds, whether the existing electrical service and panel can carry the kitchen load or need an upgrade, and whether this is a full build-out or an equipment swap in an existing space. We review your equipment schedule and floor plan, perform an NEC 220 load calculation, and provide a written, line-item quote before any work starts. We do not quote a kitchen before we have seen the equipment list.