Engineer Mate Electrical sizes the system, checks the path, balances the phases and turns the same computation into schedules, specifications and drawings — so you review engineering decisions instead of reconciling disconnected spreadsheets.
Design aid for engineering workflow. Final plans and specifications remain subject to review, signature and dry seal by a Professional Electrical Engineer as required by law.
The value is not just typing less. It is keeping the electrical design internally consistent from the first load entry to the sheet another engineer reviews.
Named PEC methods, demand steps, conductor bases, device calls and code references stay visible. You can review why a size was selected instead of accepting a black-box answer.
Multi-panel work carries voltage drop and fault level through the distribution chain, while feeder and service sizing are built from the loads actually connected downstream.
Three-phase and mixed boards are evaluated by line current, not cosmetic VA columns. Auto-balance can place movable loads and single-phase panel feeds against the actual system objective.
The designer, report, workbook and diagram surfaces consume the same computation result. That reduces the dangerous last-mile problem of a schedule saying one thing and a drawing saying another.
Choose the calculation method that matches the building instead of forcing every project through one generic template. The engine currently ships 14 selectable design paths.
Single-family, multi-family, 1Ø and 3Ø dwelling methods, plus a fully specified custom dwelling path when a named Appendix D example is not the right fit.
C3X supports a 3Ø source feeding single-phase, three-phase or mixed panelboards, with per-panel schedules, MDP feed balancing, cumulative voltage-drop budgeting and fault current at each bus.
Method, supply, transformer, panel arrangement, enclosure, fault source and project-level design settings.
Lighting, appliances, motors, pumps, air-conditioning and custom loads with the rating route and continuous-load classification that actually applies.
Review demand, breaker and conductor selection, conduit, grounding, phase distribution, voltage drop and fault duty before issuing anything.
Preview schedules, written specifications and single-line diagrams, then export plan-gated PDF, Excel and diagram deliverables from the same result.
The engine keeps calculation logic separate from the UI, exercises regression suites around the Code rules, and treats the on-screen result and exported deliverables as consumers of the same computation. That architecture matters when a one-line change can move a breaker, conductor or phase assignment.
Monthly billing is shown below. Annual plans are priced at ten months, giving two months free.
Learn the code, ship a real drawing.
Every dwelling method, for the solo designer.
Commercial three-phase, unlimited scale.
Start free, keep the calculation trail visible, and move into commercial and multi-panel work when you need it.