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Two electrical tools, side-by-side. See which fits your task.
Electrical
Reference for motor starters: DOL, star-delta, soft starter, and VFD starting.
Open Starter TypesElectrical
Reference for surge protectors: Type 1, 2, and 3 with joule ratings and clamping.
Open Surge ProtectYour specific task is reference for motor starters: dol, star-delta, soft starter, and vfd starting. Open the page, drop your input, get the result — typically under a second.
Your goal is reference for surge protectors: type 1, 2, and 3 with joule ratings and clamping. Same approach: paste in, get the result, move on. No account, no upload.
Both tools live in the same category, so the choice depends on the exact subtask. Starter Types focuses on reference for motor starters: dol, star-delta, soft starter, and vfd starting; Surge Protect focuses on reference for surge protectors: type 1, 2, and 3 with joule ratings and clamping. Try whichever description matches your goal more closely — they're both free.
Yes — both tools are free for unlimited personal use. The Pro plan unlocks higher limits and batch features but the core functionality stays free forever.
Absolutely. Many users chain multiple tools together — process a file with one, then feed the result into another. Nothing is uploaded, so chaining is essentially instant.
No. Both Starter Types and Surge Protect work without signup. We only ask for an email if you decide to subscribe to a paid plan.