Please read carefully before using the 12V, 24V & 48V DC System Designer
12V, 24V & 48V DC electrical systems present real risks of fire, explosion, and injury. Read this disclaimer in full.
⚡ Not a Licensed Electrician
DC Power Planner is a planning and design tool created by an enthusiast — not a licensed auto-electrician, marine electrician, or registered electrical contractor. The calculations, recommendations, and component suggestions provided by this application are based on publicly available standards, manufacturer specifications, and general best-practice guidance for 12V, 24V, and 48V DC systems.
📋 For Planning & Guidance Only
This application is intended solely as a planning, educational, and design-reference tool. Outputs from DC Power Planner — including cable sizing recommendations, fuse ratings, component selections, and system layouts — must be treated as estimates and starting points only. Always have your completed DC system design reviewed and verified by a licensed auto-electrician or marine electrician before any physical installation.
DC Power Planner12V · 24V · 48V DC System Designer
Visual 12V, 24V & 48V DC Electrical System Designer & Wiring Diagram Builder
Tips: Scroll wheel zooms. Drag canvas background to pan. Click terminal, then another to connect.
View as:
☀️ Solar Location4.0h PSH
Battery Capacity
0 Ah (0 Wh)
Total Continuous Loads
0 W (0 A)
Solar Output
0 W Max
System Power Balance
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⚡ SIMULATION MODE — All systems nominal
☀️ Solar PSH: 4.5h
🔋
Battery Bank
0 Ah
No batteries
⚡
Active Load Draw
0 W
0 loads active
⚡
Power Sources
0 W
No charging sources
⏱️
Estimated Runtime
ℹ️
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Add batteries to estimate
Metric Cable Sizing Details (AS/NZS)
⚡ Stressed Cables (Near Capacity)
The following cables are running close to or exceeding their safe carrying capacity in the current simulation state. Click any row to locate it on the canvas:
